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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

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FORM 10-K

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Commission file number 001-33830

EnergySolutions, Inc.
(Exact name of registrant as specified in its charter)

          Securities registered pursuant to Section 12(b) of the Act:

          Securities registered pursuant to Section 12(g) of the Act: None

          Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes o    No ý

          Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes o    No ý

          Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ý    No o

          Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulations S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes ý    No o

          Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. o

          Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer," and "smaller reporting company" in Rule 12b-2 of the Exchange Act.

          Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes o    No ý

          The aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant on June 30, 2012, was approximately $150 million based upon the closing price reported for such date on the New York Stock Exchange. For purposes of this disclosure, shares of common stock held by persons who hold more than 5% of the outstanding shares of common stock and shares held by executive officers and directors of the registrant have been excluded because such persons may be deemed to be affiliates. This determination of executive officer or affiliate status is not necessarily a conclusive determination for other purposes.

          As of March 11, 2013, 91,082,203 shares of registrant's common stock were outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

          Unless provided in an amendment to this Annual Report on Form 10-K, the information required by Part III is incorporated by reference to the Company's 2013 Proxy Statement, to the extent stated herein. Such proxy statement or amendment will be filed with the SEC within 120 days of the Company's fiscal year ended December 31, 2012.

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ENERGYSOLUTIONS, INC.
ANNUAL REPORT ON FORM 10-K
For Fiscal Year Ended December 31, 2012

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GLOSSARY OF DEFINED TERMS

        The following defined terms are used throughout this Annual Report on Form 10-K.

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        References herein to "EnergySolutions," the "Company," "we," "us" or "our" refer to EnergySolutions, Inc. and its consolidated subsidiaries unless the context otherwise requires.

        This Annual Report on Form 10-K contains statements that constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These statements are based on the current expectations and beliefs of EnergySolutions and are subject to a number of risks, uncertainties and assumptions that could cause actual results to differ materially from those described in the forward-looking statements. Any statements that are not statements of historical fact (such as statements containing the words "believes," "plans," "anticipates," "expects," "estimates" and similar expressions) should be considered forward-looking statements. Among others, the following risks, uncertainties and other factors could cause actual results to differ from those set forth in the forward-looking statements: (i) the risk that the proposed acquisition of EnergySolutions pursuant to that certain Agreement and Plan of Merger, dated January 7, 2013 (the "Merger Agreement"), by and among Rockwell Holdco, Inc., a Delaware corporation, which is an affiliate of Energy Capital Partners II, LLC, Rockwell Acquisition Corp. and the Company, pursuant to which, subject to certain conditions, Rockwell Acquisition Corp will merge with and into the Company (the "Merger"), may not be consummated in a timely manner, if at all; (ii) the risk that the Merger Agreement may be terminated in circumstances that require EnergySolutions to pay Energy Capital Partners Management II, LP or its designee a termination fee of up to $13,600,000, including the inability to complete the Merger due to the failure to obtain stockholder approval for the Merger or the failure to satisfy other conditions to completion of the Merger; (iii) risks related to the diversion of management's attention from EnergySolutions' ongoing business operations; (iv) risks regarding the failure of Energy Capital Partners to obtain the necessary financing to complete the Merger; (v) the effect of the announcement of the acquisition on EnergySolutions' business relationships (including, without limitation, partners and customers), operating results and business generally as well as the potential difficulties in employee retention as a result of the Merger; (vi) risks related to obtaining the requisite consents to the acquisition, including, without limitation, the timing (including possible delays) and receipt of regulatory approvals from various governmental entities (including any conditions, limitations or restrictions placed on these approvals) and the risk that one or more governmental entities may deny approval; (vii) risks related to the outcome of any legal proceedings that have been, or will be, instituted against EnergySolutions related to the Merger Agreement; and (viii) risks related to the effects of local and national economic, credit and capital market conditions on the economy in general. Additional risk factors that may affect future results are contained in the subsection entitled "Risk Factors" under Part I, Item 1A of this Annual Report on Form 10-K. Because forward-looking statements involve risks and uncertainties, actual results and events may differ materially from results and events currently expected by EnergySolutions. EnergySolutions expressly disclaims any obligation or undertaking to update or revise any forward-looking statements contained herein to reflect any change of expectations with regard thereto or to reflect any change in events, conditions or circumstances.

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PART I

Item 1.    Business

Overview

        We are a leading provider of a broad range of nuclear services to government and commercial customers who rely on our expertise to address their needs throughout the lifecycle of their nuclear operations. Our broad range of nuclear services includes engineering, in-plant support services, spent nuclear fuel management, decontamination and decommissioning ("D&D"), operation of nuclear reactors, logistics, transportation, processing and low-level radioactive waste ("LLRW") disposal. We also own and operate strategic processing and disposal facilities that complement our services and uniquely position us to provide a single-source solution to our customers.

        We derive almost 100% of our revenue from the provision of nuclear services, and we believe that virtually every company or organization in the United States ("U.S.") that holds a nuclear license uses our services or facilities, directly or indirectly. Our government customers include the U.S. Department of Energy ("DOE"), U.S. Department of Defense ("DOD") and United Kingdom ("U.K.") Nuclear Decommissioning Authority ("NDA"). Our commercial customers include many of the largest owners and operators of nuclear power plants in the U.S., including Constellation Energy Group, Inc., Duke Energy Corporation, Entergy Corporation, Exelon Corporation, and Florida Power & Light Company. We have entered into long-term arrangements, which we refer to as "life-of-plant" contracts, with nuclear power and utility companies that own and/or operate 84 of the 104 operating nuclear reactors in the U.S. Under these life-of-plant contracts, we have typically agreed to process and dispose of substantially all Class A LLRW and mixed low-level waste ("MLLW") generated by our customers' nuclear power plants, and ultimately the waste materials generated from the D&D of those plants. Our commercial customers also include hospitals, pharmaceutical companies, research laboratories, universities with research reactors, industrial facilities, and other commercial facilities.

        We operate strategic facilities designed for the safe processing and disposal of radioactive materials, including a facility in Clive, Utah, four facilities in Tennessee, and two facilities in Barnwell, South Carolina. According to the U.S. Government Accountability Office, our facility in Clive, Utah is the largest privately owned Class A LLRW disposal site in the U.S. and currently handles over 95% of all commercial Class A LLRW disposal volume in the country. We estimate that Class A LLRW accounts for more than 90% of the volume but less than 1% of the radioactivity of all radioactive by-products. We also manage ten sites in the U.K. with 22 reactors for the NDA, of which 1 is currently operating and producing electricity and 21 are in various stages of decommissioning. We have a comprehensive portfolio of nuclear processing technology and know-how, supported by approximately 167 patents that we own or are licensed to use. As of December 31, 2012, we had more than 5,300 employees, including more than 970 scientists and engineers and 220 radiation and safety professionals. Approximately 3,300 of our employees are located at the ten sites we manage in the U.K. We also manage approximately 200 employees at various DOE sites. We have also received multiple awards for our safety record.

Our Segments

        EnergySolutions is a solution-oriented company that helps its customers solve the complex challenges posed by the management and use of hazardous and nuclear materials. We provide a broad range of nuclear services to government and commercial customers through two major operating groups: the Government Group and the Global Commercial Group. The Global Commercial Group reports its results under three separate operating business divisions: Commercial Services, Logistics, Processing and Disposal ("LP&D") and International. When a project involves the provision of specialized on-site nuclear services as well as processing and disposal services and depending on the type of customer, our Government Group or Commercial Services divisions coordinate with our LP&D

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division to provide those specialized services. We actively seek to minimize contract risk across the groups and, in 2012, approximately 92% of our revenue was derived from cost-reimbursable or unit-rate contracts.

Government Group

        We derive revenue from U.S. government customers for the management and operation ("M&O") of DOE facilities and the clean-up of sites and facilities under the federal government's control that are contaminated by hazardous or radioactive materials. The services we provide to our government customers include the on-site characterization, processing, sorting, segregation, packaging, transportation, management and disposal of classified and unclassified solid and liquid transuranic, LLRW, MLLW and other special wastes. Our licensed technologies are used for the processing of high-level radioactive waste, and as a result, we participate as part of consortia that manage the nation's high-level radioactive waste inventories at a number of government sites. The Government Group's operations are divided into four regional organizations (Northwest, Eastern, Southeast and Southwest) and three national organizations (Navy Decommissioning Programs, Engineered Systems and Technology Projects and Management Consulting).

        Our government work includes the development of processes, engineering, fabrication and operation of facilities to reduce the hazards posed by high-level radioactive waste pending final disposition in a national geological repository. In addition, we derive revenue from the provision of D&D, processing and disposal services to the DOD, including the environmental restoration of contaminated federal sites, the decontamination of classified equipment, and the decontamination and recycling of materials for re-use in nuclear applications. We also manage site operations of federal facilities as part of a number of our contracts.

        Our government work involves providing customized waste management solutions, D&D of high hazard nuclear facilities, environmental remediation of federal sites contaminated by hazardous and radiological waste, and the deployment of our engineering and technology-based expertise to meet these kinds of challenges throughout the federal government. Our primary emphasis to date has been for the clean-up of sites at major DOE facilities, such as the Hanford site in Richland, Washington; Oak Ridge National Laboratory in Oak Ridge, Tennessee; Savannah River Site near Aiken, South Carolina; Idaho National Lab in Idaho Falls, Idaho and Los Alamos National Laboratory in Los Alamos, New Mexico. Our contract role for government customers is either under Tier 1 or Tier 2 subcontract arrangements. Under a Tier 1 contract, we typically provide services as an integrated member of a prime contract team either as a joint venture owner or as an integrated team subcontractor. Where we act as part of a Tier 1 team under a prime contract with the DOE, our employees often work alongside with and manage dedicated employees at the site who are employed by the Tier 1 contractor for the duration of the prime contract and who are covered by local benefit packages. Under a Tier 2 subcontract arrangement, we provide services to Tier 1 contractors on a subcontracted basis.

        Our government customers have in the past and may in the future account for a significant portion of our revenue. We assumed voting control over two joint ventures at the request of the DOE during 2007 and 2008, respectively. Consolidation of these joint ventures added $38.9 million and $110.6 million to our Government Group segment revenue in 2011, and 2010, respectively. In March 2011, we completed construction activities at one of our consolidated joint ventures and in December 2011 we acquired 100% ownership of the other one. While in the past our primary focus was on the DOE, we began to target additional government markets that have work scopes that align with our core competencies.

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        Our Government Group work is highly customized to our customers' specific needs and the technical challenges posed at those customers' sites. The following are examples of our Government Group work in recent years:

Hanford Site Operations

        The 586-square mile Hanford site was a former plutonium production complex with nine nuclear reactors and associated processing facilities located along the Columbia River in southeastern Washington. In 1989, the DOE, the U.S. Environmental Protection Agency ("EPA"), and the Washington State Department of Ecology signed the Tri-Party Agreement, which established milestones for the clean-up of the Hanford site. Currently, the DOE is shifting a portion of the use of the site from inactive storage to waste characterization, treatment, storage and disposal operations. Massive plants are being designed and built either to vitrify the waste at the Hanford site or to contain it in blocks of concrete grout. About 300 contaminated buildings are slated for clean up, and a radioactive waste packaging program is expected to continue until the Hanford site clean-up is complete.

        On May 29, 2008, we won the contract for the management of all high-level waste systems at Hanford as part of the Washington River Protection Solutions LLC ("WRPS") team. WRPS has the responsibility to safely manage approximately 53 million gallons of radioactive and chemical waste until it can be prepared for disposal. This is one of the largest and most complex environmental cleanup projects undertaken by the DOE. The waste, stored in 177 underground tanks near the center of the Hanford site, will be vitrified into glass logs in a treatment plant that is currently under construction. WRPS will also be responsible for safely storing the treated waste until permanent disposal facilities become available. Under separate agreements, we also provide management and technical services as a subcontractor to other prime contractors at the Hanford site. For example, our technology for the vitrification of high-level waste has been licensed to the DOE, and it has been selected as the baseline technology for the project. We designed the vitrification system for the high-level waste treatment plant, and we continue to provide engineering, research, and testing services to the DOE for their work at the site.

        We also provide environmental services to the Hanford Site for the investigation and characterization of contaminants in the soils beneath the radioactive waste storage tanks and other waste storage facilities on the Hanford Site. Specialized equipment and tooling developed by EnergySolutions is being deployed to obtain this environmental data, which is used to support the development of cleanup and interim waste site stabilization strategies.

Oak Ridge Operations

        The DOE has three separate and distinctive operations within the city of Oak Ridge, Tennessee. These are the Y-12 National Security Complex ("Y-12"), the East Tennessee Technology Park ("ETTP"), and the Oak Ridge National Laboratory ("ORNL"). ORNL, one of the DOE's largest science and energy laboratories, was established in 1943 as a part of the Manhattan Project, and has been managed since April 2000 by a partnership of the University of Tennessee and Battelle Memorial Institute.

        We have provided on-going technical and management support to ORNL since 1987. Our wholly owned subsidiary Isotek Systems, LLC is responsible for the management and disposition of the site's highly radioactive uranium 233 stockpile. Other project work at ORNL includes the operation of the wastewater treatment plant at the site as well as project work including sampling, characterization, abatement, segregation, packaging, transportation, D&D and disposal of hazardous materials. We are also responsible for sorting, segregating and volume reduction of LLRW at ORNL.

        We provide similar waste management, D&D, and environmental remediation services to Y-12 and ETTP through Tier 2 project subcontracts.

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Savannah River Site Operations

        Established in 1950 by the Atomic Energy Commission, the DOE's Savannah River Site ("SRS") is a 310-square mile facility near Aiken, South Carolina. The site was constructed during the early 1950s to produce materials, primarily tritium and plutonium-239, used in the fabrication of nuclear weapons in support of certain U.S. defense programs. Due to changes in the national security strategy of the U.S., many SRS facilities are no longer needed to produce or process nuclear materials. The DOE has identified approximately 300 structures as surplus and requiring clean-up, ranging in size and complexity from large nuclear reactors to scores of small storage buildings.

        We have supported the management and disposition of hazardous and radioactive solid waste and high-level liquids waste at SRS since 1996. Highly radioactive liquid waste is generated at SRS as by-products from the processing of nuclear materials for national defense, research and medical programs. The waste, totaling about 36 million gallons, is currently stored in 49 underground carbon steel waste tanks grouped into two "tank farms" at SRS.

        We are part of a team that has been contracted by the DOE for the design, construction, commissioning and operation of a new waste processing facility at SRS. The facility will be a pre-treatment plant to remove cesium from the highly radioactive waste stored in the tank farms. Our role on the team includes the performance of nuclear safety analysis for the facility, commissioning, testing, start-up and one year operation of the facility.

        On December 8, 2008, the DOE awarded the SRS contract to manage liquid waste to Savannah River Remediation, LLC, under which we are a pre-selected Tier 2 subcontractor. Under this contract, we provide technology support to the SRS vitrification facility. Since the contract award, our licensed vitrification technology has been applied to the SRS melters, which has significantly expanded their capacity. We also support Savannah River Nuclear Solutions, the M&O contractor for the site as a Tier 2 subcontractor in the disposition of hazardous radiological waste streams.

Idaho National Laboratory

        Established in the late 1950s, the Idaho National Laboratory occupies approximately 700 square miles and was originally established as the National Reactor Testing Station. More than 60 nuclear reactors were designed, built and tested on the site. Spent nuclear fuel reprocessing missions were subsequently added to the site whereby the DOE extracted highly enriched uranium from used nuclear fuel for recycling into the weapons program. The Idaho National Laboratory was also a disposal site for transuranic waste generated during processing operations at Rocky Flats in Colorado.

        We built the Advanced Mixed Waste Treatment Plant at the Idaho National Laboratory to safely treat transuranic contaminated waste for final disposal at the Waste Isolation Pilot Plant in Carlsbad, New Mexico. This contract was recompeted and a team including EnergySolutions was awarded this contract in the third quarter of 2011.

        As a resource partner with Battelle Energy Alliance, EnergySolutions is responsible for the safe and efficient disposition of radioactive, hazardous, industrial and mixed waste generated at the Idaho National Laboratory.

Portsmouth Gaseous Diffusion Plant

        The Portsmouth Gaseous Diffusion Plant in Piketon, Ohio occupies approximately 640 acres situated on a 3,714 acre federal site. It is operated by the United States Enrichment Corporation, a subsidiary of USEC Inc. The plant has a long history of enriching uranium for defense and commercial nuclear power needs, beginning in the early 1940s with a U.S. defense initiative to produce fissionable material for the atomic bomb. The Portsmouth Gaseous Diffusion Plant ended enrichment operations in 2001.

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        Through a joint venture with Los Alamos Technical Associates, we provided environmental management services at the Portsmouth Gaseous Diffusion Plant project, including site characterization, decommissioning, waste processing and environmental restoration. We submitted an application as the lead of a team for the continued D&D activities of the Portsmouth Gaseous Diffusion Plant. However, the contract was awarded to a competing team in 2010. Our prime contract concluded in the first part of 2011 with the completion of the transition to the new contract team. The new contract team has asked that we continue to support the site clean-up as a subcontractor to their team.

Atlas Mill Tailings Cleanup

        In June 2007, the DOE awarded us a contract to clean up the Atlas mill tailings that lie alongside the Colorado River near Moab, Utah. The site encompasses approximately 435 acres, of which approximately 130 acres contain uranium mill tailings (16 million tons). This contract included the design and construction of the disposal cell, design and construction of the transportation system and shipment and disposal of 2.5 million tons of tailings. In 2009, this project received American Recovery and Reinvestment Act ("ARRA") funding to transport and dispose of an additional 2 million tons of tailings material. The contract was largely completed in December 2011.

Los Alamos National Laboratory

        The Los Alamos National Laboratory ("LANL") occupies approximately 40 square miles located in northern New Mexico. LANL is the leading research facility of the National Nuclear Security Administration and birthplace of the atomic bomb. It is managed by Los Alamos National Security LLC. Since its inception in 1943, the primary mission of LANL has been focused on high-level science and technology essential to national defense and global security. Many of the activities and operations at LANL have produced solids, liquids and gases that contain radioactive and non-radioactive hazardous materials. Such activities include conducting research and development programs in basic and applied chemistry, biology and physics; fabricating and testing explosives; cleaning chemically contaminated equipment; and working with radioactive materials. Since environmental management work began in 1989 at LANL, the number of legacy sites there requiring further cleanup has been reduced by approximately 60 percent through active remediation, or by confirming that no action is needed.

        Since 1990, EnergySolutions has been providing hazardous and radioactive waste management solutions and environmental restoration services to LANL. In September 2009, we were awarded contracts to install and operate two transuranic waste processing lines at LANL. In 2012, this was expanded to three processing lines with a fourth that came on line in February 2013. These processing lines are critical to meeting the transuranic waste disposition goals set in the Framework Agreement between DOE and the Governor of New Mexico. To date, EnergySolutions has processed more than 1,200 cubic meters of legacy transuranic waste with 1,500 cubic meters remaining to meet the Governor's goal.

        In addition, the EnergySolutions Southwest Operations based in Los Alamos provides hazardous and radioactive waste management support throughout the Southwestern U.S. Major projects include two contracts for lead mine cleanup for the EPA in Kansas and Missouri. These contracts were awarded in 2012 with approximately five more similar projects to be bid in the same area over the next two years.

Navy Decommissioning Programs

        Our Navy Decommissioning Programs focus on the U.S. Navy Nuclear Propulsion Program ("NNPP"). NNPP operates four federal shipyards (Portsmouth, New Hampshire; Norfolk, Virginia; Puget Sound, Washington and Pearl Harbor, Hawaii), and subcontracts the operation of two private

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shipyards in Newport News, Virginia and Groton, Connecticut. There are also three Navy laboratories: Knolls Atomic Power Laboratory in New York, Bettis Atomic Power Laboratory in Pennsylvania and the Naval Reactors Facility in Idaho. We have received, processed, and disposed waste from these facilities since 1994. These sites have been of particular importance to our metal recycling programs at our facilities in Tennessee, with NNPP's continued commitment to green technologies.

        We began providing our first D&D services for NNPP at the Portsmouth shipyard in 2006. This task developed NNPP's confidence in the Company and led to various D&D operations at other federal shipyards. We have performed D&D projects, involving removal of dockside structures, at the Portsmouth and Pearl Harbor shipyards for four years.

        In 2011, we executed a Memorandum of Agreement with Newport News Shipbuilding ("NNS") to pursue business opportunities in optimization of shipyard waste management. A demonstration project was performed at Newport News Shipyard that consisted of a combined NNS and ES team to perform the characterization, removal, packaging and final disposition of ten unused facilities. The demonstration project was a success and yielded improved schedule performance and cost savings for the shipyard. Based on this success, we have continued to evaluate additional projects to pursue, with an emphasis on exporting the waste management practice to other NNPP facilities and preparing for the decommissioning of the USS Enterprise scheduled to begin in 2014.

        We have contracts with various offices within the DOE, including the Office of Environmental Management, the Office of Civilian Radioactive Waste Management, the National Nuclear Security Administration and the Office of Nuclear Energy. Revenue from DOE contractors and subcontractors represented approximately 11.0%, 15.3% and 21.7% of our total consolidated revenue for the years ended December 31, 2012, 2011 and 2010, respectively. Accounts receivable and costs and estimated earnings in excess of billings on uncompleted contracts relating to DOE contractors and subcontractors as of December 31, 2012 were $19.4 million and $33.5 million, respectively. Accounts receivable and costs and estimated earnings in excess of billings on uncompleted contracts relating to DOE contractors and subcontractors as of December 31, 2011 were $35.8 million and $66.6 million, respectively.

Engineered Systems and Technology Projects

        We employ highly trained personnel with technical and engineering experience in critical areas of the nuclear services industry. Our technical capabilities include engineering (chemical, process, mechanical, nuclear, civil and structural), radiological safety, chemistry, environmental, safety and other disciplines that are critical to the provision of technology-based nuclear services.

        We provide on-site engineering services to support the deployment of radioactive hazardous and mixed waste treatment, transportation and disposal technologies. In addition, we design equipment, components and integrated turn-key systems, train customer personnel, and perform a broad range of engineering consultation services. As part of the acquisition of BNG America, LLC ("BNGA"), we obtained the rights in the U.S., Canada and Mexico to the full suite of spent nuclear fuel recycling technologies of British Nuclear Fuels Limited, including intellectual properties. We also employ many of the employees who designed, constructed, commissioned and operated the existing spent fuel recycling facilities in the U.K.

        Our Engineered Systems and Technology Projects Group's expertise in radioactive waste immobilization through vitrification is an important competitive advantage. Vitrification is a technique in which waste mixes with glass-forming chemicals to form molten glass that solidifies and immobilizes the embedded waste. It is an established means for the disposal and long-term storage of nuclear and other hazardous wastes that produces a non-leaching, durable material that effectively traps waste that can be stored for relatively long periods without concern for air or groundwater contamination. Our patented system is the baseline technology for the high-level radioactive waste and LLRW waste vitrification processes at the DOE's Hanford Waste Treatment Plant. We have designed, constructed

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and operated nonradioactive, nonhazardous pilot melters to test design concepts for the full scale units that will vitrify millions of gallons of highly radioactive tank waste at the Hanford site. The engineered systems and technology group has also been awarded a contract to ensure that the planned mixing processes during pretreatment will work as designed.

        Our Engineered Systems and Technology Projects Group manages complex engineering, procurement, construction and integration projects by combining our technologies, expertise in the implementation of nuclear quality assurance programs and engineering and project management team experience. The following are examples of project integration work we have undertaken in recent years:

Autosampling Pneumatic Transfer System—Waste Treatment Plant, Hanford, Washington—The Autosampling Pneumatic Transfer System ("ASX") is an integrated process and control system for the waste treatment plant project in Hanford, Washington. The ASX system collects waste and process effluent samples from vessels and equipment of the pretreatment facility, low-activity waste facility and high level waste facility and pneumatically sends the samples to the analytical laboratory for testing confirmation. Our project scope was to design, supply, test and provide technical services for the installation, commissioning and training for ten shielded autosamplers and associated equipment. This project was completed in 2010.

M3 Pulse Jet Mixer Mixing Stand—Waste Treatment Plant, Hanford Washington—We are currently contracted to design, build, fabricate, install, commission, operate and report test results for the waste treatment and immobilization plant M3 PJM mixing test stand in Hanford, Washington. This test is designed to compare computational fluid dynamics analytical data for pulse jet mixing in the WTP Tanks FEP-17 and HLP-22 with scaled results using a four foot diameter instrumented test vessel. We expect to complete work on this project in mid 2014.

Management Consulting

        EnergySolutions Performance Strategies ("ESPS") provides management consulting, with 125 consultants supporting our Government and Global Commercial Groups. ESPS delivers high impact individuals in specialty disciplines: nuclear safety, quality assurance, training and performance assurance. Performance assurance, the dominant discipline within ESPS, is staffed by retired Navy engineers and adds substantial value to our own projects and our customers' operations.

Global Commercial Group

        The Global Commercial Group reports its results under three separate operating business divisions: Commercial Services, LP&D and International.

Commercial Services Operations

        We provide a broad range of on-site services to our commercial customers, including nuclear power and utility companies, fuel fabrication and related nuclear fuel cycle companies, pharmaceutical companies, research laboratories, universities, industrial facilities and other entities that generate radioactive and hazardous materials or are involved in the nuclear services industry. Our services are delivered to our clients through three principal groups as follows:

1.

Our Project Services Delivery Group provides D&D, large component removal and disposition, radioactive material characterization and management, spent nuclear fuel services, emergency response, site remediation and restoration, license termination, stakeholder and regulatory interface, liquid and solid waste management and other nuclear and hazardous services.



2.

Our Technology Products Group provides expertise, technology, systems and equipment used to process millions of gallons per year of radioactively contaminated liquids generated by

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operating nuclear plants in the U.S. and internationally. We have proprietary and patented systems and technologies that support our clients' needs to safely manage their radioactive plant liquid and effluent discharges.

3.

Our Long-Term Stewardship Group conducts our license stewardship program that is a new, innovative approach to provide decommissioning services. This group led the efforts to successfully close a unique transaction with Exelon Generation Company on September 1, 2010, where we assumed the responsibility for decommissioning the shut-down Zion Nuclear Power Station in Zion, Illinois.

Project Services Delivery Group

        The services our Project Services Delivery Group provides to clients include:

        Decontamination and Decommissioning.    We have been providing D&D services to our customers for over 30 years. This includes D&D of commercial nuclear power plants, test reactor facilities, nuclear research laboratories, fuel cycle/fabrication facilities and industrial facilities that used nuclear materials in their processes.

        Large Component Removal and Disposition.    Our expertise, personnel and strategic assets enable us to prepare large components for transport via public highway, waterway, rail, or combinations thereof to ensure the highest degree of safety and compliance with regulatory requirements. Large components include overweight and oversized nuclear components, such as reactor pressure vessels, steam generators, reactor heads, pressurizers, turbine rotors, reactor coolant pumps and feed water heaters. Transportation, processing and disposal of these large components are typically handled through our LP&D segment.

        Site Remediation and Restoration.    We provide site characterization, remediation and release survey services to clients who have radioactively contaminated sites, including facilities that are currently licensed at the federal and state level by the NRC or NRC-Agreement States. We also provide remediation services at legacy facilities where non-radioactive material possession license currently exists, or where licenses were previously terminated but residual contamination remains above current regulatory guidelines.

        On-Site Waste Management Services.    We provide a variety of client-site waste management services to prepare waste streams for more efficient on-site storage and/or compliant packaging and transport to an authorized disposal facility. Engineered processing at client sites includes size reduction by means of shearing or cutting, compaction, solidification and dewatering.

        Spent Fuel Pool Services.    We have more than 30 years of experience managing and processing irradiated hardware and other high activity materials found in spent fuel pools at both boiling water and pressurized water reactors. Our fuel pool services include underwater irradiated hardware volume reduction, component transfer and container loading, cask transportation, fuel pool vacuuming, pool-to-pad transfers and waste characterization. Our fuel pool personnel are specially trained to handle the planning, on-site processing, packaging, transportation, on-site storage and disposal of various fuel pool components. We have completed more than 100 fuel pool projects and our customers have included nearly every nuclear power and utility company in the U.S. and the Tokyo Electric Power Company ("TEPCO") in Japan. We also provide full service support of spent fuel storage activities, including cask design and procurement, cask loading and related activities, as well as design and construction oversight for on-site independent spent fuel storage installations ("ISFSIs").

        Emergency Response.    We employ more than 220 trained nuclear safety professionals who can be deployed rapidly throughout the U.S. to respond to a variety of radioactive contamination events. We also maintain procedures, equipment and mobile radioactive material licenses that can be used for

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radiological emergency response events. We have responded to a variety of emergency situations, including spills and other radiological events at non-nuclear facilities.

        Examples of key projects awarded or completed by the Project Services Delivery group that highlight our capabilities and breadth of experience in providing the above services include the following:

        Pacific Gas & Electric (PG&E)—Humboldt Bay Decommissioning Projects—In 2012, the Project Services Delivery Group was again awarded new projects for nuclear decommissioning support at the Humboldt Bay Power Plant ("HBPP") in Eureka, California. This work consists of three projects. The first project which includes engineering and planning work is scheduled to be completed in 2013, and involves removal, segmenting and disposition of the HBPP Unit 3 reactor vessel internals. The second project, which began in 2011, was completed during 2012 and involved the removal of greater than Class C waste that is stored in the spent fuel pool, shipping the waste to our Barnwell processing facility for removal of organics by de-ashing and return to HBPP for eventual storage on their ISFSI. The third project, which began in 2011, was planning for the removal of four liquid radioactive waste hold-up tanks and associated piping. The project also entails the removal of approximately 100 cubic feet of resin/sludge from one of the tanks and processing and de-watering. The project is expected to be completed in 2013.

        Whittaker Corporation Site Remediation Projects—In 2012, we continued work at two Whittaker Corporation legacy sites in California and Pennsylvania.

        At the Whittaker Bermite site in Santa Clarita, California, we were contracted to complete the remediation of a former firing range contaminated with depleted uranium fragments. The scope of services included site clearing, unexploded ordnance clearance and removal, site characterization, excavation, disposal of contaminated soil, final status surveys and backfilling and grading the site. Waste was transported to and disposed of at our Clive, Utah disposal facility.

        At the Whittaker Site in Transfer, Pennsylvania, we continued remediation of a 5.8 acre area of slag and soil byproducts located along the Shenango River. Whittaker Corporation, as well as prior owners of the site, used raw source material containing licensable quantities of thorium and uranium to process rare earth metals on site. During the course of the project, waste was transported to and disposed of at our Clive, Utah disposal facility. After completion of decommissioning activities, the site will have been remediated to levels that will permit license termination for unrestricted use.

        Exelon Nuclear—Multiple Plant EPU Outage Support.    During 2012, we completed the last of six turbine retrofit outages under our contract with Exelon for the removal and disposal of turbine casings, rotors and miscellaneous waste from the Quad Cities, Peach Bottom and Dresden reactor sites. In 2012, almost 5 million pounds of waste were transported to our Clive, Utah disposal facility during these outages. This brought the contract total to over 11 million pounds of waste transported to the Clive, Utah facility. Work on this contract began in late 2009 and was completed at the end of 2012 with Exelon's scheduled plant outages.

        San Onofre Nuclear Generating Station ("SONGS")—Licensing and Disposal of Steam Generator Lower Assemblies (SGLA).    In 2012, we continued our engineering and licensing support of SONGS resulting in their receipt of a special permit from the U.S. Department of Transportation allowing the transportation of their old SGLA. The last two of the four SGLA were successfully transported from SONGS to our Clive, Utah disposal facility in 2012.

        Liquid Waste Processing Group—Our radioactive liquids processing services incorporate a number of technologies, including advanced ion exchange and membrane-based systems, to reduce radioactive secondary waste generation, reduce radioactive liquid discharge, improve water chemistry and enable the recycling of wastewater for reuse by utilities. We are currently providing full-time on-site services

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for the removal of radioactive and chemical contaminants from wastewater at over 20 nuclear power plants across the country. We also provide dewatering services of radioactive particulate wastes. The dewatered waste resulting from our dewatering technology is compatible with our approved disposal containers and with disposal criteria at our Clive, Utah and Barnwell, South Carolina disposal facilities. We currently provide dewatering services at more than 30 nuclear power plants in the U.S. In addition to long term on-site service contracts, we also provide radioactive liquids processing and dewatering services on a demand basis for nuclear facilities in the U.S., the U.K. and Mexico. In 2012, we were awarded and completed substantial work related to a contract for equipment utilizing our water treatment technology for the removal of a complex spectrum of high concentration radionuclides from contaminated water in Fukushima, Japan.

Technology Products Group

        Our Technology Products Group provides engineered equipment to a variety of customers including domestic nuclear power stations, international nuclear power stations, U.S. Navy, U.S. Navy shipbuilders and DOE contractors. The Technology Products Group is composed of highly experienced project managers most of whom are graduate engineers. These project managers are well equipped to evaluate customer requirements and direct the design of processing systems, handling equipment, specialty containers and liners and transport equipment to safely and efficiently handle the customer's radioactive waste from point of origin through storage and final disposal. They are also knowledgeable in all aspects of design, fabrication management and overall project management.

        The Technology Products Group's primary focus is on liquid waste process equipment design and fabrication including:

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Ion exchange systems



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Reverse osmosis systems



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Specialty ultra filtration systems



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Advanced injection methodology for polymer and coagulants treatments



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Dewatering systems utilizing self-engaging fillheads (SEDS, SERDS)



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Solidification and encapsulation systems utilizing cement or polymers



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Container remote grappling equipment



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Container remote capping equipment



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Liquid drying systems



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Carbon steel pressure vessels



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Stainless steel pressure vessels



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High integrity container and liners utilized as waste containers including but not limited to:



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High Integrity Containers



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High Integrity Container Overpacks



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Standard steel containers



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Specialty containers including but not limited to:



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NRC Licensed Type B transportation casks and cask inserts



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Type A transportation casks

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•

Specification 7A and IP-II containers



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Specialty transport, storage and disposal liners



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On-site concrete shield and storage containers and lifting hardware including:



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Class B and C waste storage vaults



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Radvaults and OSSCs



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Process shields

        The Technology Products Group also operates and manages the Nuclear Support Services Facility ("NSSF") and Liner Operations Group, both located at our Barnwell, South Carolina disposal facility. The NSSF maintains a radioactive materials license to permit receipt of contaminated equipment and subsequent maintenance and, or repair of this equipment at the NSSF hot shop. The Liner Operations Group assembles and delivers waste processing containers to EnergySolutions' clients. Examples of work performed by this group include:

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Ginna Nuclear Power Station—Self-engaging dewatering system



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Grand Gulf Nuclear Station—Design and fabrication of a cross-flow filtration system



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Indian Pont Nuclear Power Station—Advanced liquid processing system



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Norfolk Naval Shipyard—Specialty containers for processing liquid waste streams from submarines



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Portsmouth Naval Shipyard—Specialty containers for processing liquid waste streams from submarines



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Huntington-Ingalls Newport News—Specialty containers for processing liquid waste streams from aircraft carriers and submarines



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Electric Boat—Specialty containers for processing liquid waste from submarines



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Savannah River Nuclear Solutions—Specialty containers for processing liquid waste streams



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Humboldt Bay Nuclear Station—Specialty containers for processing various waste streams



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EnergySolutions Asia—Technical fabrication support for Yangjiang and Haiyang liquid waste processing equipment and technical support to Toshiba in development of a proposal of engineered equipment for processing liquid waste at the Fukushima nuclear station



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Argonne National Laboratory—Design, licensing and fabrication of a shielded container for shipment of gamma and neutron emitting sources within EnergySolutions' NRC licensed 10-160B transport cask



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Sandia National Laboratory—Design, licensing and fabrication of a shielded container for shipment of gamma sources within EnergySolutions' NRC licensed 10-160B transport cask



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Spallation Neutron Source Facility (ORNL)—Specialty containers for shipment and disposal of proton beam targets and shield equipment



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Zion Station—Concrete storage containers (Radvaults), specialty liners and support equipment for temporary storage and transport of decommissioning waste



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Waste Control Specialists LLC—specialty liners and support equipment for waste disposal

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Long-Term Stewardship Group

        Our Long-Term Stewardship program is a new, innovative approach to provide decommissioning services to our customers. Under this program, we acquire title to substantially all of a customer's buildings, facilities and equipment of its non-operating nuclear facilities. As the owner of the facility and associated permits, licenses and other assets, we are eligible to acquire a license from the NRC to decommission the plant and to acquire the rights to the customer's decommissioning trust fund associated with the facility (if applicable). Because of our technology, expertise and assets, this unique structure facilitates the decommissioning of the plant ahead of the schedule that the customer would otherwise expect to achieve.

        In September 2010, we entered into an arrangement, through our subsidiary ZionSolutions, LLC ("ZionSolutions") with Exelon Generation Company ("Exelon") to dismantle Exelon's Zion nuclear facility located in Zion, Illinois ("Zion Station"), which ceased operation in 1998. Upon closing, Exelon transferred to ZionSolutions substantially all of the assets (other than land) associated with Zion Station, including all assets held in its nuclear decommissioning trust fund. In consideration for Exelon's transfer of those assets, ZionSolutions agreed to assume decommissioning and other liabilities associated with Zion Station. ZionSolutions also took possession and control of the land associated with Zion Station pursuant to a lease agreement executed at the closing. ZionSolutions is under contract to complete the required decommissioning work according to an established schedule and to construct a dry cask storage facility on the land for the spent nuclear fuel currently held in spent fuel pools at the Zion Station. Exelon retains ownership of the land and the spent nuclear fuel and associated operational responsibilities following completion of the Zion Station D&D project. The NRC approved the transfer of the facility operating licenses and conforming license amendments from Exelon to ZionSolutions (the "License Transfer"). At the conclusion of the project any remaining plant facilities and associated amended licenses are returned to Exelon and the lease terminates.

        During the course of the project, some major scope activities to be completed include transferring over 2,000 spent fuel assemblies to storage on an ISFSI, removing major components such as the reactor vessel, steam generators, pressurizers, turbines, generators, main power transformers and other large components, demolishing and removing all buildings and structures with the exception of the ISFSI, transporting and disposing of radioactive and hazardous waste and remediation of the site to unrestricted release criteria as specified by the NRC.

        By the end of 2012, we had accomplished or initiated a number of key activities related to our obligations to complete the identified scope of work. Some of our 2012 achievements on the project include initiating construction of the heavy haul path and the ISFSI pad, continued fabrication of transport storage canisters and beginning the segmenting of unit 2 reactor vessel internals. We substantially completed the abating, removing and disposing of thermal insulation asbestos from the auxiliary building and all vertical concrete casks are complete and have been accepted for fuel loading. In 2012, we completed our first rail shipment of waste to our Clive, Utah disposal facility.

Logistics, Processing and Disposal ("LP&D")

        We provide a broad range of logistics, processing and disposal services and we own and operate strategic facilities for the safe processing and disposal of radioactive materials. Our facilities include our LLRW disposal facility in Clive, Utah, three processing facilities in Tennessee, one processing facility in South Carolina and one separate disposal facility in Barnwell, South Carolina, that we operate pursuant to a long-term lease with the state of South Carolina. We also own a facility in Tennessee that we believe is the only commercial facility in the world with the ability to cast, flat-roll and machine casks and other products from depleted uranium. We believe that virtually every company or organization that holds a nuclear license in the U.S. uses our facilities either directly or indirectly.

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        Our transportation and logistics services encompass all aspects of transporting radioactive materials, including obtaining all required local and federal licenses and permits, loading and bracing shipments, conducting vehicle radiation surveys and providing transportation assistance to other companies throughout the U.S. Through our Hittman Transport Services, Inc. ("Hittman") subsidiary, we own and operate a dedicated fleet of tractors, trailers and shipping containers for transporting radioactive materials and contaminated equipment for processing and disposal. In 2009, we added to our existing rail infrastructure and service by acquiring the assets of Heritage Railroad Corporation a short line railroad that serves the Heritage Center Industrial Park in Oak Ridge, Tennessee and is in close proximity to our Bear Creek, Tennessee facility. Through this asset acquisition, we ensured future rail service from Bear Creek to Clive, Utah. Our specialized shipping casks are engineered containers for the safe transport of radioactive material. We also have expertise in transporting very large and contaminated reactor components from commercial power plants to processing or disposal sites. These components include reactor pressure vessels, steam generators, turbine rotors and casings and other smaller components. Transportation modes include barge, rail and truck transport.

        We have the capability to store, treat and dispose of several types of radioactive materials, including the following:

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LLRW generated from contaminated soil and debris at clean-up sites, such as ion exchange resins and filter materials used to clean water at nuclear plants, medical waste, activated metals, manufacturing materials and medical and technological research materials;



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MLLW, such as radioactive and hazardous materials, including lead-lined glove boxes, lead-shielded plates and radioactivity contaminated electric arc furnace dust;



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NORM (naturally occurring radioactive material), such as waste from radium processes and from mining activities;



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PCB Radioactive and PCB Mixed Waste, such as PCB Capacitors (large and small), transformers, bulk product, remediation waste, etc;



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dry active waste, consisting of protective clothing, resins, filters, evaporator bottoms and hot metal debris;



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liquid waste, which is similar to LLRW, but in liquid form; and



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waste defined as "byproduct materials" under section 11e(2) of the AEA, consisting of dirt generated by mining and milling operations.

        The LLRW that we dispose of at our Clive, Utah disposal facility comes primarily from the clean-up activities of contaminated sites (including DOE facilities, nuclear power plants, Superfund sites and industrial sites), and from the routine operations of utilities, industrial sites and hospitals. We treat and dispose of only Class A LLRW, MLLW and 11e(2) materials at our Clive, Utah disposal facility. However, we are able to dispose of Class A, as well as Class B and C waste from customers located in the Atlantic Compact States of South Carolina, New Jersey and Connecticut at the state owned Barnwell, South Carolina facility that we operate.

        Our MLLW treatment facility at Clive, Utah disposal facility uses several treatment technologies to reduce the toxicity of waste materials prior to their disposal. These technologies include thermal desorption, stabilization, amalgamation, reduction, oxidation, deactivation, chemical fixation, neutralization, debris spray washing, macro-encapsulation and micro-encapsulation processes.

        Our MLLW treatment facility at the Bear Creek Facility, Oak Ridge, Tennessee uses several treatment technologies for Class B and C Wastes to reduce the toxicity of waste materials prior to their disposal at non-EnergySolutions disposal sites primarily owned by the U.S. Government. These technologies include stabilization, amalgamation, reduction, oxidation, deactivation, chemical fixation, neutralization, debris spray washing, macro-encapsulation and micro-encapsulation processes.

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        Many of our LP&D projects complement the services we provide in our Government Group and Commercial Services divisions. The following are examples of LP&D services that we have performed in recent years:

Life-of-Plant Contracts

        Our life-of-plant contracts integrate our LP&D services into a tailored solution for our commercial customers' needs. Life-of-plant contracts provide our customers with LLRW and MLLW processing and disposal services for the remaining lives of their nuclear power plants, as well as D&D waste disposal services when these plants are shut down. We have signed life-of-plant contracts with nuclear power and utility companies that own and/or operate 84 of the 104 operating nuclear reactors in the U.S. Some of the customers with whom we have entered into life-of-plant contracts include Dominion Resources, Inc., Duke Energy Corporation, Entergy Corporation, Exelon Corporation, Florida Power & Light Company and Progress Energy.

Large Components

        An important service provided to our commercial nuclear power plant customers is the disposition of overweight and oversized nuclear components, such as reactor pressure vessels, steam generators, reactor heads, pressurizers, turbine rotors, reactor coolant pumps and feed water heaters. As operational nuclear power plants age, their components are replaced either to provide increased operational capacity or as part of planned plant maintenance. For example, in late 2008 and 2009, we worked on a contract to remove eight retired steam generators from Duke Energy's McGuire Nuclear Station in Huntersville, North Carolina. The preparation of these large components for transportation, processing and disposal was handled through our Commercial Services division. This contract provided us with the experience to propose and win a three year project with Exelon to upgrade several of its nuclear power plants in the mid-west and to dispose four steam generators from Edison International's San Onofre Nuclear Plant in California. The scope of work includes the removal, packaging and transport of large components for disposal during time-critical outage periods. The first phase of that project was successfully completed in 2010, two steam generators were received and disposed of at our Clive, Utah disposal facility in 2011, and the remaining two were received for disposal in 2012.

Los Alamos National Laboratory

        The DOE is currently in the process of a phased cleanup and D&D program at the LANL site and surrounding lands. Under a continuing series of contracts in place since June 2005, we have repackaged LANL transuranic legacy waste to meet the requirements for its disposal at the Waste Isolation Pilot Plant in New Mexico. Revenue from these services is recognized in our Government Group segment. We are also a major subcontractor for the transport and disposal of LLRW, MLLW and other contaminated materials from LANL.

Separations Process Research Unit

        The Separations Process Research Unit cleanup site is located within the currently operating 170-acre Naval Reactor Knolls Atomic Power Laboratory in Niskayuna, New York. The facilities operated as a pilot plant to research the process to separate plutonium from irradiated matrices. The facilities and process systems were flushed and drained after operations ceased in 1953. As part of the cleanup effort, we are the subcontractor responsible for the packaging, transportation, treatment and disposal of LLRW and MLRW waste. This work began late in 2009 and it is currently ongoing.

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Other Department of Energy Environmental Management Sites

        The DOE's Office of Environmental Management has ongoing work at several major sites including Portsmouth in Ohio, Paducah in Kentucky and the ETTP in Tennessee. As part of cleanup efforts at these and other DOE sites EnergySolutions provides treatment and disposal services.

U.S. Navy Contracts

        We are the principal service provider to the U.S. Navy for the disposition of radiological materials under the Naval Nuclear Propulsion Program. Through a series of long-term contracts, we process and dispose of Class A LLRW and MLLW generated by the U.S. Navy's nuclear operations worldwide.

        Several of our facilities provide services to the U.S. Navy, including our Clive, Utah, Barnwell, South Carolina and Oak Ridge and Memphis, Tennessee facilities. These services include volume reduction, metal recycling and specialized processing. These processed materials may then be disposed of at our Clive, Utah and Barnwell, South Carolina facilities. In addition to processing liquid and solid radioactive materials, we also provide transportation and logistics services to the U.S. Navy, as well as on-site support at naval bases around the U.S. for the removal of radioactive materials.

International

        The International division derives its revenue primarily through contracts with the NDA in the U.K. for the operation and management of its ten Magnox nuclear power plant sites. Under these contracts, we are responsible for the operation, defueling and decommissioning of those sites. One site currently generates electricity and the nine other sites are in varying stages of defueling and decommissioning. We have extended our international business into other European, Asian and Canadian markets. We primarily offer to our international customers our technologies and expertise in nuclear waste processing solutions, clean-up of old reactors and design of innovative waste systems for new units. We also provide waste management and technology-based services. Some of our recent developments in International markets include:

        In January 2010, we were selected to design and supply a liquid waste processing system for two new reactors at Yangjiang in Guangdong Province, China. The contract has an option for providing the same system for two additional reactors to be built at the same site. The new reactors are being constructed by the China Nuclear Power Engineering Company and China Nuclear Power Design Company, which are subsidiaries of China Guangdong Nuclear Power Holding Corporation. In August 2010, a consortium between EnergySolutions and Yuanda Environmental Engineering Company was selected to provide waste management systems for up to eight new reactors being developed by China Power Investment Corporation. The contract scope includes the design, equipping and commissioning of the Site Radioactive Treatment Facility for the treatment and storage of liquid, wet-solid and solid waste radioactive streams.

        In August 2010, we submitted an import and export application for waste owned by Eckert and Ziegler Nuclitec GmbH of Germany to the NRC for review. This license was obtained in May 2011 and subsequently we entered into a contract with Eckert & Ziegler for the processing and return of waste. During the last quarter of 2012, approximately 100 tons of waste, generated primarily at German hospitals and universities, was shipped to our licensed facilities at Bear Creek, Tennessee for processing, volume reduction and subsequent return to its country of origin. We completed processing and volume reducing the waste in January 2013 and expect to return the waste to Germany in the second half of 2013. For a description of some of the risks applicable to our International division, please see Item 1A. Risk Factors—"Our international operations involve risks that could have a material adverse effect on our results of operations."

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        In February 2012, we were awarded a four year contract to design and supply waste management systems for the United Arab Emirates nuclear energy program. The Korea Electric Power Corporation ("KEPCO") leads a consortium building four reactors for the Emirates Nuclear Energy Corporation. We supply liquid waste processing equipment, including ion exchange and reverse osmosis systems, which serve to significantly reduce levels of contamination and waste.

        In March 2012, we were selected by Toshiba to assist in the cleanup of the large volume of contaminated water at the damaged Fukushima Daiichi nuclear power plant in Japan. Toshiba has been selected as a preferred bidder for the work by TEPCO, the owner of the plant. We support Toshiba in the design and installation of a large water treatment system, as well as the treatment and packaging of secondary wastes resulting from the decontamination process. We also supply the containers and materials necessary to support the operation of the technology, including the ion exchange media used in the water clean-up system and our own proprietary High Integrity Containers for secondary waste collection and long-term storage.

        Our operations in Canada include radioactive waste management, radiation health physics consulting, sealed source services, storage of containers and engineering services. In November 2012, we held an open house to celebrate the opening of our new EnergySolutions Walker Operations facility in Brampton, Ontario. This new facility enables EnergySolutions to provide licensed space for storage, support to Canada Deuterium Uranium refurbishment projects, decommissioning projects and waste management services. Controlled radiation areas have been established for dedicated equipment inspection and refurbishment and special waste processing systems are being established. The waste management services and operations are licensed by the Canadian Nuclear Safety Commission under a Waste Nuclear Substance License that was renewed in 2012 for 10 years. Our major customers in Canada include Atomic Energy of Canada Limited, nuclear power plants and supporting industries.

        During 2012, we commenced our business development efforts in preparing to bid for the award of the next phase of the NDA Magnox M&O contract, which is expected to be for an initial period of seven years with total revenue of around £7.0 billion or approximately $11.3 billion. We have prequalified in partnership with Bechtel and expect to submit our bid in late 2013. We expect the NDA to announce the results of the rebid competition in March 2014.

        During the contract year ending March 31, 2013, we expect to receive funding from the NDA in the amount of approximately £707.0 million for our Magnox operations, or $1.1 billion based on the annual average sterling pound exchange rate for the year ended December 31, 2012. Notable achievements during the 2012/13 contract year included the implementation of inter-reactor exchange at Wylfa which enables extension of power generation at the Wylfa site to September 2014, removal of all irradiated fuel from the Chapelcross site and building momentum across the Magnox decommissioning program in line with the Magnox Optimized Decommissioning Program ("MODP")—particularly at the Bradwell and Trawsfynydd sites. In addition, we have delivered a further £544.0 million or $879.5 million of lifetime savings into the MODP through a series of additional baseline change controls reflecting a more efficient approach to delivering the Care and Maintenance requirements at all sites.

        Our International segment derives its revenue primarily through contracts with the NDA. For the years ended December 31, 2012, 2011 and 2010, respectively 63.8%, 61.0% and 57.6%, of our total consolidated revenue was generated from contracts funded by the NDA. Accounts receivable relating to the NDA at December 31, 2012 and 2011 were $186.0 million and $217.7 million, respectively.

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Our Processing and Disposal Facilities

Clive Facility

        Our Clive facility is located in Tooele County, Utah, approximately 75 miles west of Salt Lake City and approximately 35 miles away from the nearest population center (Grantsville, Utah). The DOE and the state of Utah investigated 29 sites to identify the safest permanent disposal location for radioactive materials before settling on what is now our Clive disposal site. The location was selected and used by the DOE as a disposal site for uranium tailings due to its remote location, low precipitation, naturally poor groundwater quality and relatively impermeable clay soils. Tooele County has designated the area around the facility as a hazardous industrial district, which restricts the future use of land in the area to heavy industrial processes and to industries dealing with hazardous wastes.

        The state of Utah authorizes our Clive facility to dispose of Class A LLRW, NORM, 11e(2) materials and MLLW. The facility's location enables it to receive radioactive materials year-round via bulk truck, containerized truck, enclosed truck, bulk rail, rail boxcars and rail intermodals. We are served by the Union Pacific Railroad at our private siding where we maintain more than seven miles of track. This direct rail access and our gondola railcar rollover system provide a cost-effective method for unloading up to 100,000 cubic feet of radioactive materials per day. We maintain a fleet of railcars under long-term operating leases, as well as custom designed flat cars and other multi-model containers, to facilitate the safe transport of radioactive materials to our Clive facility. We also maintain an all-weather paved asphalt road to the site from Interstate 80 to facilitate truck shipment.

        Unlike the other existing commercial LLRW disposal sites which are state owned, our Clive facility, property, buildings and equipment are owned by EnergySolutions. Over the years, the facility has been adapted to meet the changing needs of customers. Our Clive facility has the unique distinction of having two gondola railcar unloading facilities, a large industrial scale shredder and high pressure water cleaning and decontamination facilities.

Disposal Cells

        Our Clive facility uses an above-ground, engineered disposal design, also known as a secure landfill that uses a near-surface engineered embankment design for our disposal cells. Using standard heavy construction equipment, radioactive materials are placed in 24-inch thick layers and then compacted in a continuous "cut and cover" process that provides for long-term disposal with minimal active maintenance. The system relies on natural, durable materials to ensure performance over time. Each cell has a 24-inch liner system designed to assist in isolating hazardous materials from the environment. The liner, consisting of compacted low-permeability clay, covers a foundation of compacted indigenous clay and soils. The cell embankment top slopes are covered with a compacted two-foot to seven-foot thick clay cover, a rock drainage layer and a two-foot thick rock erosion barrier to ensure long-term protection from the environment. Cover construction begins as areas of the cell are filled to capacity. The process of continual building, filling and capping of the cells ensures long-term cell stability and minimizes the work that would be required upon site closure. In addition to the standard liner and cover used in the LLRW and 11e(2) materials cells, the MLLW cell has a triple-synthetic-liner system with a synthetic cover barrier. The mixed waste liner system includes leachate collection and leak detection systems required for the containment of hazardous waste.

Disposal Capacity

        We believe that we have sufficient capacity for approximately 30 years of operations at our Clive facility based on our estimate of future disposal volumes, our ability to optimize disposal capacity through volume reduction and compaction techniques, and the license amendment to convert volume capacity originally intended for 11e(2) materials to Class A LLRW that was approved in November 2012. If future disposal volumes increase beyond our expectations, or if our other assumptions prove to

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be incorrect, then the remaining capacity at Clive would be exhausted more quickly than projected. See Item 1A. Risk Factors—"We operate in a politically sensitive environment, and public perception of nuclear power and radioactive materials can affect our business" and "Our business depends on the continued operation of our Clive, Utah disposal facility."

Tennessee Facilities

        We own and operate facilities at three locations in Tennessee where we process and transfer radioactive materials generally to our Clive, Utah disposal facility. These facilities are all operated in an integrated fashion to maximize the breadth of options available to our customers.

        Our Bear Creek facility in Oak Ridge, Tennessee includes a licensed commercial LLRW processing facility which has the only commercially licensed radioactive metals recycling furnace and the largest LLRW incinerators in the U.S. It receives waste primarily from nuclear utilities, government agencies, industrial facilities, laboratories and hospitals. Our Bear Creek facility also manages classified nuclear waste, which is specially processed to obscure any classified information. Our Bear Creek facility is also the base for our Hittman trucking operations, containers maintenance operations and shipping container fleet for transport of radioactive materials.

        Our Gallaher Road facility in Kingston, Tennessee is located adjacent to Oak Ridge, Tennessee and provides services for the assay and processing of low activity and potentially contaminated materials.

        Our Memphis, Tennessee facility's riverside location allows for access by barge as well as truck and rail. This facility is specifically designed to handle large components such as steam generators, turbine rotors, heat exchangers, large tanks and similar components. From our Memphis facility, disassembled components can be shipped to our other facilities for ultimate disposition. We also lease space to various nuclear service vendors at this facility who support commercial nuclear power generation outage activities.

        In addition to our three Tennessee processing facilities, we also own a facility in Oak Ridge, Tennessee that provides metals manufacturing, processing, casting and rolling, fabrication and other capabilities to our customers. We believe it is the only commercial facility in the world with the ability to cast flat-roll and machine products from depleted uranium. Material processed at this facility can be found in a variety of products, including electronics, medical isotope shipping containers, nuclear accelerators, nuclear fuel storage casks and jet aircraft.

        We also operate a transload facility located in the Heritage Center Industrial Park in Oak Ridge, Tennessee. The 12 acre transload yard serves as a logistics center connecting our Hittman truck and rail operations.

South Carolina Facilities

        We operate a LLRW disposal facility in Barnwell, South Carolina pursuant to a long-term lease and an operating agreement with the state of South Carolina that expires on April 5, 2075. This facility provides disposal services for large components not suitable for volume reduction and for ion exchange resins and other radioactive materials that are generated by nuclear power plants, hospitals, research laboratories and industrial facilities. On July 1, 2008, the state of South Carolina restricted the Barnwell disposal site to receive only Class A, B and C LLRW from customers located in the three Atlantic Compact States—South Carolina, New Jersey and Connecticut. We have continued to operate the Barnwell site for the Atlantic Compact States on a cost-reimbursable basis under our long-term lease.

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        We also operate a processing facility adjacent to the Barnwell disposal facility to support the preparation of materials for disposal at various disposal locations, including equipment decontamination and parts retrieval and recycling. The facility also provides specialty processing services.

Research and Development

        We have not incurred material costs for company-sponsored research and development activities.

Patents and Other Intellectual Property Rights

        As of December 31, 2012, we owned or licensed the right to use approximately 90 patents in the U.S. We also own or license the rights to use approximately 77 foreign counterparts (including both issued patents and patent applications pending). These licenses cover the fields of radioactive material management, storage, treatment, separation, spent nuclear fuel recycling and transport. We have approximately 13 registered trademarks in the U.S. Our patents expire between 2013 and 2029. We do not believe that our business, results of operations or financial condition will be adversely affected by any of the patent expirations over the next several years.

        Collectively, our intellectual property is important to us; however, there is no single patent or trademark that is in itself material to us at the present time. Moreover, we do not believe that the termination of intellectual property rights expected to occur over the next several years, either individually or in the aggregate, will materially adversely affect our business, financial condition or results of operations. See Item 1A. Risk Factors—"We rely on intellectual property laws, trade secrets and confidentiality agreements to protect our intellectual property. Our failure to protect our intellectual property rights could adversely affect our future performance and growth."

Contracts

        Our work is performed under a variety of contract types including cost-reimbursable contracts, unit-rate contracts and fixed-price contracts, some of which may be modified by incentive and penalty provisions. Each of our contracts may contain components of more than one of the contract types discussed below. The majority of the government work in our Government Group and International segments is performed on a cost-reimbursable basis awarded through either a competitive proposal process or negotiation. With the relatively fluid nature of the scope of the government work we perform, we believe this type of contract reduces our exposure to unanticipated and unrecoverable cost overruns. Fixed-price contracts, on the other hand, are generally obtained by the proposal and negotiation processes but are accepted only when the scope of the work is clearly defined. Our commercial D&D projects are generally fixed-price contracts or time and material based contracts and almost all of our contracts within the LP&D operations are unit-rate.

        The following table sets forth the percentages of revenue represented by these types of contracts for the year ended December 31, 2012:

Cost-Reimbursable Contracts

        Most of the government contracts in our Government Group and International divisions are cost-reimbursable contracts. Under a cost-reimbursable contract, we are reimbursed for allowable or otherwise defined costs incurred plus an amount of profit. The profit element may be in the form of a simple mark-up applied to the labor costs incurred or it may be in the form of a fee, or a combination

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of a mark-up and a fee. The fee element can take several forms; it may be a fixed amount as specified in the contract; it may be an amount based on the percentage of the estimated costs; or it may be an incentive fee based on targets, milestones, cost savings, or other performance factors defined in the contract.

        Our government contracts are typically awarded through competitive bidding or negotiations and may involve several bidders or offerors. Many of these contracts are multi-year indefinite delivery and indefinite quantity agreements. These contracts provide estimates of a maximum amount the governmental agency expects to spend. Our program management and technical staffs work closely with our customers to define the scope and amount of work required. Although these contracts do not initially provide us with any guaranteed amount of work, as projects are defined, the work may be awarded to us via task release without having to further compete for the work. Government contracts typically have annual funding limitations and are subject to public sector budgeting constraints. Government contracts may be terminated at the discretion of the government agency for convenience with payment of compensation only for work performed and commitments made at the time of termination. In the event of termination, we would typically receive an allowance for profit or fee on the work we performed.

        Our government cost-reimbursable contracts are subject to oversight audits by government representatives, to profit cost controls and, limitations to provisions permitting modification or termination, in whole or in part, at the government's convenience. Government contracts are subject to specific procurement regulations and a variety of socioeconomic requirements as well as local economic development initiatives. For example, government contracts may require the contractor to submit a small business subcontracting plan or make another type of commitment to use a small business in the project to be awarded. Intentional failure to comply with such regulations and requirements could lead to suspension, termination for cause and possibly debarment from future government contracting or subcontracting efforts for a period of time. Among the causes for debarment are violations of various statutes, including those related to employment practices, the accuracy of records and the recording of costs.

Unit-Price Contracts

        Almost all of the contracts entered into by our LP&D division, including our life-of-plant contracts, are unit-rate contracts. Under a unit-rate contract, we are paid a specified amount for every unit of work performed. A unit-rate contract is essentially a fixed-price contract with the only variable being the number of units of work performed. Variations in unit-rate contracts include the same type of variations as fixed-price contracts. We are normally awarded unit-rate contracts on the basis of a total estimated price that is the sum of the product of the specified units and unit prices.

        Our life-of-plant contracts generally provide our customers with LLRW and MLLW processing and disposal services for the remaining lives of their nuclear power plants, as well as D&D waste disposal services when those plants are shut down. Life-of-plant contracts typically contain a standardized set of purchasing terms and pre-negotiated pricing provisions and often provide for periodic price adjustments.

Fixed-Price Contracts

        Under fixed-price contracts, the price is not subject to any adjustment by reason of our cost experience or our performance under the contract. Our Zion Station project is considered a fixed price contract. Under this contract type, we are the beneficiary of any cost savings but are typically unable to recover performance cost overruns. However, these contract prices may be adjusted for changes in scope of work, new or changing laws and regulations and other negotiated events.

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Sales and Marketing Strategy

        We conduct our sales and marketing efforts principally through our business development groups, which are dedicated to serving existing customers or pursuing new opportunities in each of our segments.

        The market for our Government Group and International operations is the management and clean-up of radioactive materials. Within this market, there are two different types of contracts. The first is Tier 1 contracts in which a federal agency outsources the M&O of a federal project for the purpose of executing a site mission, managing a site clean-up or a combination of both. The second type is Tier 2 subcontracts, which are project-driven contracts. For these contracts, we generally act as a subcontractor to a Tier 1 contractor. Each of these opportunities requires unique business development and sales approaches.

        The federal procurement process is an objective and highly-structured process governed by federal acquisition regulations. We typically pursue Tier 1 opportunities for nuclear services at a number of DOE sites and we generally bid on Tier 1 contracts as a member of a consortium. The sales cycle for these contracts begins at least one year and in many instances two years before the release of a request for proposal ("RFP"). Tier 2 opportunities are discrete project-based opportunities to act as a subcontractor to Tier 1 contractors or as a smaller contractor to federal agencies. The sales cycle for Tier 2 opportunities can be six months or less. We generally pursue contracts that are decided on a "best-value" basis in which the decision-makers consider a combination of technical and cost factors. Factors include the technical approach to managing and performing the project, key project personnel, experience performing similar projects, past performance and customer references. Cost factors are generally weighed to include cost structures as they would be applied to a specific project.

        In our Commercial Services division, our sales teams actively market our integrated services and technical expertise to nuclear power and utility customers. For example, one of our commercial sales teams was instrumental in developing and marketing the concept of life-of-plant contracts with our commercial power and utility customers and has also been involved in developing our license stewardship initiative to serve the shut-down nuclear reactor D&D market.

        In our LP&D division, we maintain dedicated sales teams at our Clive, Bear Creek and Barnwell facilities to market to and serve customers who require logistics, transportation, processing and disposal services for radioactive materials. Our LP&D sales team's duties include visiting customer sites, assisting customers in completing all required paperwork and obtaining necessary licenses and permits for the transportation of radioactive materials to any of our facilities and managing the transportation process.

        Our sales efforts in our International division mirror our sales efforts in our Commercial Services division in the U.S. Our business development and technical teams approach bidding opportunities in the U.K. in a similar manner as they do for bids for contract opportunities in the U.S. In addition, our international business development team works closely with key nuclear power operators to pursue a variety of opportunities.

Safety

        We devote significant resources to ensuring the safety of the public, our employees and the environment. In the U.S., we have built a safety record that is critical to our reputation throughout all our markets, particularly with DOE and other federal agency contractor services. Our 2012 domestic safety incident record is substantially better than standards for other similar businesses according to the North American Industrial Classification System with total Occupational Safety and Health Administration ("OSHA") recordable and lost time incidence rates of 0.53 and 0.2, respectively, versus industry averages of 4.1 and 1.4, respectively. None of our safety incidents have involved radioactive

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contamination. We have received numerous safety achievement awards in recognition of our industry leading safety record.

        We have traditionally met or exceeded the occupational and public radiation safety requirements for the U.S. nuclear services industry. The average employee radiation dose, at our Clive, Utah disposal facility, is less than 60 millirem annually, which is only 1.0% of the federal government's allowable annual guideline of 5,000 millirem.

        In 2012, we passed approximately 500 person-days of regulatory inspections by state regulators, the NRC, the DOE and the Nuclear Procurement Issues Committee. We submit routine reports to the applicable state and federal regulatory agencies demonstrating compliance with applicable rules and regulations.

        We have established an extensive safety education program for our employees. Before employees are permitted to work in restricted areas, they are required to complete a four-day training course on radiation theory, proper work procedures and radiation safety. In addition to extensive training, we employ more than 220 safety professionals and technicians who are responsible for protecting our workers, the public and the environment. Where necessary, we also employ a round-the-clock security staff to prevent unauthorized access to our sites. Two of our facilities in the U.S. are recognized by OSHA as Voluntary Protection Program Star Sites.

        In the U.K., every Magnox site is accredited under the ISO 14001 system, an internationally accepted specification for environmental management systems, as well as Occupational Health and Safety Management Systems specification 18001, which establishes standards for occupational health and safety. Our Magnox operations have also won numerous awards for health and safety. See Item 1A. Risk Factors—"Our failure to maintain our safety record could have an adverse effect on our business" and "We may incur regulatory fines or lose our NDA contract fees if a significant accident were to occur at the power generating facilities."

Insurance

        Like all companies in the nuclear industry, we derive significant benefit from the provisions of the Price-Anderson Act, as amended. The Price-Anderson Act was enacted in 1957 to indemnify the nuclear industry against liability claims arising from nuclear incidents, while still ensuring compensation coverage for the general public. The Price-Anderson Act establishes a no-fault insurance-type system for commercial reactors that indemnifies virtually any industry participant against third party liability resulting from a nuclear incident or evacuation at a commercial reactor site or involving shipments to or from a commercial reactor site. Through a primary layer insurance pool and a secondary layer insurance pool both funded by the nuclear industry, each reactor has coverage for approximately $12.6 billion in claims that covers activities at the reactor site and the transportation of radioactive materials to or from the site. The Price-Anderson Act limits liability for an incident to $12.6 billion, unless the federal government decides to provide additional funding. Activities conducted under a contract with the DOE are covered by an $11.9 billion indemnity issued by the DOE. For activities at

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our facilities that are not covered by the Price-Anderson Act, we maintain nuclear liability insurance coverage issued by American Nuclear Insurers, as follows:

        Our Clive, Utah facility maintains a pollution legal liability policy which, in addition to typical pollution liability coverage, includes coverage for bodily injury, property damage and clean-up costs associated with LLRW and material at the site.

Competition

        We compete with international, national and regional services firms who provide nuclear services for government and commercial customers. We believe that the following are key competitive factors in these markets:

•

technical approach;



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skilled managerial and technical personnel;



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proprietary technologies and technology skill credentials;



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quality of performance;



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safety;



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diversity of services; and



•

price.

        Competitors to our Government Group and International divisions include international and national engineering and construction firms such as Bechtel Group, Inc., CH2M Hill, Fluor Corporation, Jacobs Engineering Group Inc., URS Corporation, AMEC plc and AREVA. Many of our competitors have greater financial and other resources than we do, which may give them a competitive advantage. In addition, we also face competition from smaller firms. Our major U.S. government customer, the DOE, has substantially increased small business set-aside programs for prime contracts. Because we are not a small business, we have responded by teaming in certain circumstances as a subcontractor with small businesses responding to requests for proposals as a prime contractor on selected procurements.

        In the Commercial Services area, our competitors for major projects in the nuclear utility decommissioning market include large nuclear services firms such as Bechtel Group, Inc., URS Corporation's Washington Division, AREVA and the Shaw Group. To some degree, we also face competition from nuclear utilities, since many elect to self-perform the decommissioning of their plants. Other competitors in the Commercial Services market include a number of companies who have the capability to provide similar services, which include large component removal, facility decontamination, site remediation, radiological consulting services, staff augmentation, fuel pool services, cask services and liquid waste processing. We believe that we have a competitive advantage due to our wider range of in-house services and larger staff resources. However, we often face stiff price competition on bids where other companies are willing to accept lower margins or have lower indirect cost structures.

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        In the LP&D division we face competition in providing radioactive material transportation, processing and disposal services to our customers. Currently, the predominant radioactive material treatment and disposal methods include direct landfill disposal, on-site containment or processing, incineration and other thermal treatment methods. Competition in this area is based primarily on price, safety record, regulatory and permit restrictions, technical performance, dependability and environmental integrity.

        At this time, we have the only commercial disposal outlet for MLLW and we operate two of the four commercial LLRW disposal sites in the U.S., through our Clive, Utah and Barnwell, South Carolina disposal facilities. There is a state owned commercial LLRW facility located in Richland, Washington that does not accept radioactive materials from outside the Northwest Interstate Compact on Low Level Radioactive Waste Management (the "Northwest Compact"). In addition, Waste Control Specialists LLC ("WCS") operates a commercial LLRW facility in Andrews County, Texas. WCS received a license to receive LLRW at its disposal facility from the Texas Commission on Environmental Quality ("TCEQ") and announced receipt of its first shipment in April of 2012. It is possible that other commercial sites may be licensed for the disposal of radioactive waste.

        With respect to Class A waste, we also compete with processors who reduce waste volumes through treatment (compaction, sorting and incineration). With respect to large components, we compete with processors that have the abilities to cut, scrap and partially decontaminate these components. In both instances, much of the waste generated has usually been transported to our Clive, Utah disposal facility. Another option available to utilities and to industrial sites is to store their waste on-site.

Employees

        As of December 31, 2012, we had more than 5,300 employees, including approximately 970 scientists and engineers and 220 radiation and safety professionals. A majority of our employees are skilled professionals, including nuclear scientists and engineers, hydrogeologists, engineers, project managers, health physics technicians, environmental engineers and field technicians. Approximately 150 of our U.S. employees and 2,600 of our U.K. employees are represented by labor unions. In addition to our own employees, we also manage, approximately 200 DOE employees through various Tier 1 arrangements at those sites, a portion of which belong to unions.

        Approximately 3,300 of our employees are located at the ten Magnox sites we manage in the U.K. A full organizational review of our Magnox sites was undertaken in conjunction with an optimized decommissioning planning exercise for all ten sites, which reduced support and overhead costs, increased funding for accelerated decommissioning work at two sites and base-lined an optimized generation, defueling and decommissioning program for Magnox. The Magnox MODP has been approved by the NDA and forms part of the NDA funding settlement which in turn is part of the U.K. government's Comprehensive Spending Review ("CSR").

        During the CSR period to 2015, the MODP includes approximately twelve changes of organization across the ten Magnox sites, generation to defueling to decommissioning, as a result of these changes and the drive to reduce support and overhead costs, there will be significant manpower reductions, expected to be approximately 600 staff, during the CSR period to 2015 followed by a further reduction in manpower of 1,000 in the period from 2016 to 2020. The initial restructuring across Magnox with reduced support and overheads, generated reductions of approximately 300 staff over twelve months followed by further reductions as sites went from generation to defueling or from defueling to decommissioning.

        The termination plan and employee termination benefits to be paid to these employees are in accordance with the existing employee and the trade union agreements and were pre-approved by the NDA. All employee termination benefit costs are treated as part of the normal Magnox cost base and

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will be reimbursed by the NDA. The total termination benefit cost included within the MODP over the CSR period to 2015 is estimated to be approximately £200.0 million, or approximately $320.0 million, and is expected to be paid by the NDA over a four year period.

Regulation

Applicable U.S. Statutes

        We operate in a highly regulated industry and are subject to extensive and changing laws and regulations administered by various federal, state and local governmental agencies, including those governing radioactive materials and environmental and health and safety matters. Some of the laws affecting us include, but are not limited to, the Atomic Energy Act of 1954 ("AEA"), the Resource Conservation and Recovery Act of 1976 ("RCRA"), the Energy Reorganization Act of 1974 ("ERA"), the Comprehensive Environmental Response, Compensation and Liability Act of 1980 ("CERCLA"), the Hazardous Materials Transportation Act, the Uranium Mill Tailings Radiation Control Act of 1978, the Low-Level Radioactive Waste Policy Act, the Low-Level Radioactive Waste Policy Amendments Act, the Nuclear Waste Policy Act of 1982 ("NWPA"), the Utah Radiation Control Act, the Utah Air Conservation Act, the Utah Solid and Hazardous Waste Act, the Utah Water Quality Act, the Tennessee Radiological Health Service Act, the South Carolina Atomic Energy and Radiation Control Act, the South Carolina Radioactive Waste Transportation and Disposal Act, the Tennessee Solid Waste Disposal Act, the Clean Water Act, the Clean Air Act ("Clean Air Act"), the Toxic Substances Control Act ("TSCA"), the Federal Insecticide, Fungicide and Rodenticide Act, the Oil Pollution Act of 1990 and the Occupational Safety and Health Act of 1970; each as from time to time amended.

        The AEA and the ERA authorize the NRC to regulate the receipt, possession, use and transfer of commercial radioactive materials, including "source material," "special nuclear material" and "by-product material." Pursuant to its authority under the AEA, the NRC has adopted regulations that address the management, treatment and disposal of LLRW and that require the licensing of LLRW disposal sites by the NRC or states that have been delegated authority to regulate low-level radioactive material under Section 274 of the AEA. Nearly all of our nuclear related licenses are overseen by Agreement States (i.e., a state to which the NRC has delegated some authority). Our primary regulators are government agencies of the states where our processing and disposal facilities are located, namely Utah, South Carolina and Tennessee.

        RCRA, as amended by the Hazardous and Solid Waste Amendments of 1984 ("HSWA"), provides a comprehensive framework for the regulation of the generation, transportation, treatment, storage and disposal of hazardous and solid waste. The intent of RCRA is to control hazardous and solid wastes from the time they are generated until they are properly recycled or treated and disposed. As applicable to our operations, RCRA prohibits improper hazardous waste disposal and imposes criminal and civil liability for failure to comply with its requirements. RCRA requires that hazardous waste generators, transporters and operators of hazardous waste treatment, storage and disposal facilities meet strict standards set by government agencies. In certain circumstances, RCRA also requires operators of treatment, storage and disposal facilities to obtain and comply with RCRA permits. The land disposal restrictions developed under the HSWA prohibit land disposal of specified wastes unless these wastes meet or are treated to meet best demonstrated available technology treatment standards, unless certain exemptions apply. In the same way that the NRC may delegate authority under the AEA, the EPA may delegate some federal authority under RCRA to the states.

        TSCA provides the EPA with the authority to regulate over 60,000 commercially produced chemical substances. The EPA may impose requirements involving manufacturing, record keeping, reporting, importing and exporting. TSCA also established a comprehensive regulatory program, analogous to the RCRA program for hazardous waste, for the management of polychlorinated biphenyls.

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        The Clean Water Act regulates the discharge of pollutants into streams and other waters of the U.S. (as defined in the statute) from a variety of sources. If wastewater or runoff from our facilities or operations may be discharged into surface waters, the Clean Water Act requires us to apply for and obtain discharge permits, conduct sampling and monitoring and, under certain circumstances, reduce the quantity of pollutants in those discharges. The federal government may delegate Clean Water Act authority to the states.

        The Clean Air Act empowers the EPA and the states to establish and enforce ambient air quality standards and limits of emissions of pollutants from facilities. This has resulted in tight control over emissions from technologies like incineration, as well as dust emissions from locations such as waste disposal sites. States can assume control over portions of the federal Clean Air Act authority through EPA approval of "state implementation plans."

        The processing, storage and disposal of high-level radioactive waste (e.g., spent nuclear fuel) are subject to the requirements of the NWPA, as amended by the NWPA Amendments. These statutes regulate the disposal of high-level radioactive waste by establishing procedures and schedules for the DOE to site geologic repositories for such waste and such repositories are to be licensed by the NRC. The NRC has issued regulations that address the storage and disposal of high-level radioactive waste, including storage and transportation of such waste in dry casks and storage at Independent Spent Fuel Storage Installations ("ISFSI"). ZionSolutions will be responsible for licensing and constructing an ISFSI as part of the agreement to dismantle Exelon's Zion Station plant. Although we are not involved with the processing or disposal of high-level radioactive waste at our facilities, we do provide technical and operations support services to the DOE and nuclear utilities for the management of such high-level waste at client sites.

Applicable U.K. Statutes

        Through our U.K. subsidiaries, we are subject to extensive and changing laws and regulations in the U.K. Some of the laws affecting us include, but are not limited to, the Nuclear Installations Act 1965, the Health and Safety at Work Act 1974, the Radioactive Substances Act 1993 ("RSA 1993") (applicable in Scotland and Northern Ireland only), the Environment Act 1995, the 2004 Energy Act and the Electricity Act 1989 and the Ionising Radiations Regulations 1999 and the Environmental Permitting Regulations 2010.

        The Nuclear Installations Act 1965 governs the construction and operation of nuclear installations, including fuel cycle facilities, in the U.K. The Health and Safety at Work Act 1974 regulates workplace health, safety and welfare within the U.K.

        The RSA 1993 provides a comprehensive framework for the keeping and use of radioactive materials as well as accumulation and disposal of radioactive waste.

        The Environment Act 1995 created the Environment Agency in England and Wales and the Scottish Environment Protection Agency ("SEPA"). Under the Environment Act 1995, these agencies enforce environmental protection legislation including the RSA 1993.

        The 2004 Energy Act established the NDA to ensure the decommissioning and clean-up of Britain's civil public sector nuclear sites including the sites operated by ESEU Limited.

        The Ionising Radiations Regulations 1999 provides a framework for the general radiation protection of workers and the public from work activities involving ionising radiation.

        The Environmental Permitting Regulations 2010 (which repeals the Radioactive Substances Act 1993 in England and Wales only) applies to the use of radioactive substances on premises.

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The U.S. Regulatory Environment

        The state of Utah regulates our operations at our Clive facility. Our Utah licenses include our Clive facility's primary radioactive material license (UT2300249) and our 11e(2) material license (UT2300478), both of which are currently in timely renewal, which allow us to operate under the terms of our prior license until a new license is issued. Four different divisions of the Department of Environmental Quality regulate this facility with approximately 14 employees devoted to the facility. The Division of Radiation Control and the Division of Solid and Hazardous Waste regulate our ability to receive LLRW, NORM/NARM (naturally-occurring/accelerator-produced radioactive material), 11e(2) material and MLLW. Additionally, the Division of Water Quality and the Division of Air Quality also regulate the facility. The site is inspected daily to ensure strict compliance with all Utah regulations. The Division of Radiation Control also requires us to provide letters of credit as financial assurance for the decommissioning or "closure" of our Clive facility, including areas that are closed on an ongoing basis. The adequacy of the funding provided is reviewed annually to assure that adequate financial resources are set aside and maintained to fund any required on-site clean-up activities. Finally, we also maintain nine Tooele County, Utah Conditional Use Permits for the facility.

        The South Carolina Department of Health and Environmental Control regulates our South Carolina operations through multiple groups, including the Division of Waste Management, the Bureau of Air Quality and the Bureau of Water. Our licensed operations in South Carolina include the Barnwell disposal facility (the license is currently in timely renewal), the Calibration Laboratory, the Nuclear Services Support Facility, the Barnwell Environmental and Dosimetry Lab and the Chem-Nuclear Systems, Service Operations Division. The South Carolina Department of Health and Environmental Control has staff specifically devoted to the regulation of our facilities which continually inspects us and assures that we fully comply with all regulations. We lease the Barnwell site from the state of South Carolina and under the terms of the Atlantic Compact. As part of that lease and as part of its regulatory oversight, South Carolina requires us to contribute to a long-term care fund for the site and maintain decommissioning or closure assurance.

        The Tennessee Department of Environment and Conservation ("TDEC"), regulates our Tennessee operations through multiple groups, including the Division of Radiological Health, the Division of Solid Waste Management and the Division of Water Pollution Control. The TDEC has staff that continually oversees our facilities and also requires each facility to provide decommissioning assurance. Several of our Tennessee licenses are currently in timely renewal.

        When we engage in the transportation of hazardous or radioactive materials, we are subject to the requirements of the Hazardous Materials Transportation Act, as amended by the Hazardous Materials Transportation Uniform Safety Act of 1990. Pursuant to these statutes, the U.S. Department of Transportation regulates the transportation of hazardous materials in commerce. Our wholly owned subsidiary Hittman Transport Services, Inc., operates our primary shipping operation. Shippers and carriers of radioactive materials must comply with both the general requirements for hazardous materials transportation and with specific requirements for the transportation of radioactive materials. Many states also regulate our shipping business including California, Colorado, Florida, Georgia, Idaho, Massachusetts, New Jersey, New York, Oregon and Pennsylvania.

        As described above, we are also regulated by the federal government, including by the NRC and EPA. The NRC regulates us regarding the certification of casks used to transport waste, importation of waste from foreign countries, decommissioning of power reactors and non-reactor decommissioning operations in non-Agreement States. We have multiple current Certificates of Compliance, which allow us to manufacture and sell radioactive material packages for the storage and transportation of radioactive material, including dry casks for spent nuclear fuel. These Certificates of Compliance permit the use of these packages by third parties as well as for our own transportation needs. The NRC requires us to maintain a Quality Assurance program associated with these Certificates of Compliance.

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To the extent we engage in the storage, processing, or disposal of MLLW, the radioactive components of the mixed waste are subject to NRC regulations promulgated under the AEA. The EPA, under RCRA, regulates the hazardous components of the waste. To the extent that these regulations have been delegated to the states, the states may also regulate mixed waste.

        Operators of hazardous waste treatment, storage and disposal facilities are required to obtain RCRA Part-B permits from the EPA or from states authorized to implement the RCRA program. Our Bear Creek facility located near Oak Ridge, Tennessee, is permitted under RCRA by the TDEC as a hazardous waste treatment facility. We have developed procedures to ensure compliance with RCRA permit provisions at our Bear Creek facility, including procedures for ensuring appropriate waste acceptance and scheduling, waste tracking, manifesting and reporting and employee training.

        Under RCRA, wastes are classified as hazardous either because they are specifically listed as hazardous or because they display certain hazardous characteristics. Under current regulations, waste residues derived from listed hazardous wastes are considered hazardous wastes unless they are delisted through a formal rulemaking process that may last a few months to several years. For this reason, waste residue that is generated by the treatment of listed hazardous wastes, including waste treated with our vitrification technologies, may be considered a hazardous waste without regard to the fact that this waste residue may be environmentally benign. Full RCRA regulation would apply to the subsequent management of this waste residue, including the prohibition against land disposal without treatment in compliance with best demonstrated available technology treatment standards. In some cases, there is no current technology to treat mixed wastes, although EPA policy places these wastes on a low enforcement priority. Our ownership and operation of treatment facilities exposes us to potential liability for clean-up of releases of hazardous wastes under RCRA.

        CERCLA effectively imposes strict, joint and several retroactive liabilities upon owners or operators of facilities where a release of hazardous substances occurred, the parties who generated the hazardous substances released at the facilities and parties who arranged for the transportation of hazardous substances to these facilities. The Clean Water Act and CERCLA also require companies to report releases to the environment of listed hazardous substances to the National Response Center and impose fines for failure to do so.

        Because we own and operate vitrification, storage, incineration and metal processing facilities, we are exposed to potential liability under CERCLA for releases of hazardous substances into the environment at those sites. If we use off-site storage or disposal facilities for final disposition of the glass and other residues from our vitrification, incineration and other treatment processes, or other hazardous substances relating to our operations, we may be subject to clean-up liability under CERCLA and we could incur liability as a generator of these materials or by virtue of having arranged for their transportation and disposal to such facilities. We have designed our processes to minimize the potential for release of hazardous substances into the environment. In addition, we have developed plans to manage and minimize the risk of CERCLA or RCRA liability by training operators, using operational controls and structuring our relationships with the entities responsible for the handling of waste materials and by-products.

        Certain of our facilities are required to maintain permits under the Clean Water Act, the Clean Air Act and corresponding state statutes. The necessity to obtain such permits depends upon the facility's location and the expected emissions from the facility. A state may require additional state licenses or approvals. Further, many of the federal regulatory authorities described in this section have been delegated to state agencies; accordingly, we hold the required licenses, permits and other approvals from numerous states.

        We believe that our treatment systems effectively trap particulates and prevent hazardous emissions from being released into the air, the release of which would violate the Clean Air Act.

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However, our compliance with the Clean Air Act may require additional emission controls and restrictions on materials stored, used and incinerated at existing or proposed facilities in the future.

        Many of the government agencies overseeing our operations require us to regularly monitor the impacts of our operations on the environment and to periodically report the results of such monitoring. The costs associated with required monitoring activities have not been and are not expected to be, material. In complying with existing environmental regulations in past years, we have not incurred material capital expenditures. We do not expect to incur material capital expenditures in future periods for compliance with environmental regulations. However, we could be required to remediate any adverse environmental conditions discovered or occurring in the future which may require material expenditures.

        OSHA provides for the establishment of standards governing workplace safety and health requirements, including setting permissible exposure levels for hazardous chemicals that may be present in mixed wastes. We must follow OSHA standards, including the preparation of material safety data sheets, hazardous response training and process safety management, as well as various record-keeping disclosure and procedural requirements. The NRC also has set regulatory standards for worker protection and public exposure to radioactive materials or wastes that we adhere to.

The U.K. Regulatory Environment

        Through our U.K. subsidiaries, we hold contracts and licenses to operate and decommission 22 reactors at 10 of the NDA sites in the U.K. One of these reactors is operating and 21 are in various stages of decommissioning. Approximately 3,400 employees in the U.K. operate these sites and are subject to the U.K. regulatory environment. We also have other operations in the U.K. that are also subject to this regulatory environment.

        The Health and Safety Executive ("HSE") is responsible for licensing nuclear installations. The Office of Nuclear Regulation ("ONR"), previously called Nuclear Installations Inspectorate ("NII"), which is part of the Nuclear Directorate of the HSE, ensures that nuclear installations comply with all statutory safety requirements. ONR staff regularly inspects our facilities to confirm that the relevant licensing requirements are met throughout the life of the facility, including decommissioning.

        The Environment Agency in England and Wales and the SEPA in Scotland have extensive powers and statutory duties to improve and protect the environment across England, Wales and Scotland. The Nuclear Regulation Groups (North and South) of the Environmental Agency regularly inspect and regulate our facilities in England and Wales to confirm compliance with regulations regarding radioactive substances, integrated pollution control, waste regulation and water quality. SEPA fulfills a similar function in Scotland. Memoranda of Understanding between the Environment Agency/SEPA and the HSE facilitate coordination between the multiple agencies regarding overlapping functions.

        Under the Energy Act 2004, the NDA was given responsibility for the operation, clean-up and decommissioning of 20 civic public sector nuclear sites, including reactor facilities used for the storage, disposal or treatment of hazardous material. We are operating or decommissioning reactors for the NDA at 10 of these sites. Accordingly, we serve as a prime contractor for the NDA.

Financial Information About Business Segments and Foreign and Domestic Operations

        For financial information relating to (a) each of our business segments and (b) our foreign and domestic sales, transfers between geographic areas net income and identifiable assets, see Note 16 to our consolidated financial statements included within this Annual Report on Form 10-K.

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Development of Our Business

        The Company was initially formed as Envirocare of Utah, Inc. in 1988 to operate a disposal facility for mixed waste, uranium mill tailings and Class A LLRW in Clive, Utah. In January 2005, the Company converted to a limited liability company, Envirocare of Utah, LLC ("Envirocare"). Immediately thereafter, the sole member of Envirocare sold all of its member interest to ENV Holdings LLC. In 2006, we changed our name from Envirocare to EnergySolutions, LLC. Since 2005, we have expanded and diversified our operations through a series of strategic acquisitions, including the D&D division of Scientech, LLC in October 2005, BNGA in February 2006, Duratek, Inc, in June 2006, Safeguard International Solutions, Ltd. (renamed EnergySolutions EU Services Limited) in December 2006, Parallax, Inc. (renamed EnergySolutions Performance Strategies) in January 2007, RSMC in June 2007, NUKEM Corporation (renamed EnergySolutions Diversified Services, Inc.) in July 2007, and Monserco in December 2007. The operations of these acquisitions are included in our results of operations from the date of acquisition.

        On November 20, 2007, the date of the completion of our initial public offering, we completed our conversion to a corporate structure whereby EnergySolutions, LLC became a wholly owned subsidiary of EnergySolutions, Inc. EnergySolutions, Inc. is organized and existing under the General Corporation Law of the state of Delaware.

        On July 30, 2008, we completed a secondary offering of 35 million shares of common stock offered by ENV Holdings, previously our majority shareholder, as selling shareholder. The underwriters of the offering subsequently exercised their over-allotment option and purchased 5.25 million additional shares of our common stock from ENV Holdings. Following completion of the offering, ENV Holdings owned approximately 16.7% of our outstanding shares of common stock. On February 13, 2009, ENV Holdings completed a distribution of all of our shares to its members on a pro rata basis for no consideration. As a result, ENV Holdings is no longer a beneficial owner, directly or indirectly, of any shares of our common stock.

        On January 7, 2013, we entered into an Agreement and Plan of Merger (the "Merger Agreement") with Rockwell Holdco, Inc., a Delaware corporation ("Parent"), and Rockwell Acquisition Corp., a Delaware corporation and a wholly owned subsidiary of Parent ("Merger Sub"). Parent and Merger Sub are affiliates of Energy Capital Partners II, LP and its parallel funds (together with its affiliates, "Energy Capital Partners"), a leading private equity firm focused on investing in North America's energy infrastructure. Pursuant to the Merger Agreement, the Merger Sub will merge with and into the Company (the "Merger") and we will become a wholly-owned subsidiary of Parent. The Merger will only be able to be consummated after the stockholders of the Company have adopted the Merger Agreement at a meeting of stockholders and following the satisfaction or waiver of a number of conditions set forth in the Merger Agreement. Upon consummation of the Merger, each outstanding share of the Company's common stock other than shares of common stock held in the treasury of the Company or owned by Parent, any affiliates of Parent, Merger Sub, a subsidiary of the Company or by stockholders who have validly exercised their appraisal rights under Delaware law, will be converted into the right to receive cash in an amount equal to $3.75, without interest and subject to any required withholding of taxes.

        The obligation of Parent and Merger Sub to consummate the Merger is subject to the satisfaction or waiver of a number of conditions set forth in the Merger Agreement, including (i) the adoption of the Merger Agreement and approval of the transactions contemplated thereby by stockholders of the Company owning at least a majority of outstanding shares of the Company's common stock, (ii) the expiration or termination of any applicable waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the "HSR Act"), (iii) a notification from the Committee on Foreign Investment in the United States ("CFIUS") that it has determined not to investigate the transactions contemplated in the Merger Agreement, but only if the Company and Parent have elected

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to make a filing to CFIUS, (iv) the absence of any law or order preventing the consummation of the Merger, (v) the obtaining of certain regulatory approvals, including approval from both the NRC, any State from which the Company or its subsidiaries holds a radiological license or permit pursuant to the AEA, and consent from the NDA, (vi) subject to certain exceptions, the accuracy of the Company's representations and warranties, (vii) the Company's compliance in all material respect with its obligations under the Merger Agreement and (viii) the absence of a material adverse effect on the Company.

        The early termination of the waiting period under the HSR Act was granted and became effective on February 1, 2013. The Company submitted the formal consent application to the NDA on January 21, 2013. The NDA, in a letter dated January 24, 2013, gave its consent to the change in control of EnergySolutions EU Limited in satisfaction of this aspect of the Merger Agreement. Also, the Company and Parent determined not to make a filing with CFIUS pursuant to the Defense Protection Act of 1950, based on their belief that no such filing is necessary with respect to the transactions contemplated by the Merger Agreement. The Company has submitted all required notices or applications requesting consent to the indirect transfer of control of the Company's NRC and State radiological licenses and permits from the NRC and the States of Connecticut, Ohio, South Carolina, Tennessee and Utah. The States of Ohio, South Carolina and Tennessee have issued all required consents regarding the several licenses from these states held by the Company. A required Notice has been provided to the State of Connecticut, and no further action is required by the State of Connecticut. However, further consents are still required from the NRC and the State of Utah.

        Following satisfaction or waiver of all the Merger Agreement's closing conditions, we expect to close the Merger during the second or third quarter of 2013. Following completion of the transaction, our common stock will be delisted from the NYSE and deregistered under the Securities Exchange Act of 1934, as amended (the "Exchange Act"). As such, we would no longer file periodic reports with the SEC, on account of our common stock, but we may be subject to certain continued reporting requirements with respect to our 10.75% Senior Notes due 2018. The Company will become a privately owned company and our stock will no longer trade on the NYSE.

Available Information

        We file annual, quarterly and current reports and other information with the Securities and Exchange Commission ("SEC"). These materials can be inspected and copied at the SEC's Public Reference Room at 100 F Street, NE., Washington, D.C. 20549. Copies of these materials may also be obtained by mail at prescribed rates from the SEC's Public Reference Room at the above address. Information about the Public Reference Room can be obtained by calling the SEC at 1-800-SEC-0330. The SEC also maintains an Internet site that contains reports, proxy and information statements and other information regarding issuers that file electronically with the SEC. The address of the SEC's Internet site is www.sec.gov.

        We make available, free of charge, on our Internet website, located at www.energysolutions.com, our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K and any amendments to such reports, as soon as reasonably practicable following the electronic filing of such report with the SEC. Such reports can be found under "SEC Filings" in the "Investor Relations" tab. In addition, we provide electronic or paper copies of our filings free of charge upon request. The information on our website is not a part of this Annual Report and is not incorporated into any of our filings made with the SEC.

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Item 1A.    Risk Factors.

        You should carefully consider the following factors and other information contained in this Annual Report on Form 10-K before deciding to invest in our common stock.

There can be no assurance that the Merger contemplated by the Merger Agreement between affiliates of Energy Capital Partners and us will be completed. If the Merger is not completed, we expect the market price of our common stock to decline, potentially significantly.

        On January 7, 2013, the Company entered into the Merger Agreement which provides for the acquisition of the Company by Parent. Pursuant to the Merger Agreement, subject to the satisfaction or waiver of the conditions contained therein, we will become a wholly owned subsidiary of Parent following the merger of a wholly owned subsidiary of Parent with and into us. If the Merger contemplated by the Merger Agreement is completed, each share of our common stock will be cancelled and converted into the right to receive $3.75 in cash, without interest, less any required tax withholding, except for shares of our common stock held by us immediately prior to the effective time of the Merger, shares owned by Parent, Parent's affiliates or any subsidiary of the Company and shares owned by stockholders of the Company who have properly demanded appraisal rights. The per share merger consideration of $3.75 represents a premium of approximately 20% to the average closing price of our common stock during the 30-day trading period ended on January 4, 2013, the last trading day prior to the public announcement of the execution of the Merger Agreement, and a premium of approximately 9% to the closing price of our common stock on January 4, 2013. The closing trading price of our common stock was $3.44 per share on the last trading day prior to the public announcement of the Merger Agreement. However, the trading price of our common stock has been subject to significant volatility prior to and since this announcement. Completion of the Merger is subject to certain closing conditions, including stockholder approval of the Merger, consent from the NRC and any State from which the Company or its subsidiaries holds a radiological license or permit issued pursuant to the Atomic Energy Act and other customary conditions. There can be no assurance that those conditions will be satisfied.

        If the Merger is not consummated, our stock price could fall below its current trading range for the following, but not limited to the following, reasons:

•

We do not expect to have sufficient resources available to repay the remaining balloon payment of our senior secured term loan which matures in August 2016. We may not be able to refinance, renew or replace the senior secured term loan given the likelihood of additional credit rating downgrades. If we are unable to refinance our debt, we could be forced by our creditors to undertake a financial restructuring that could reduce the value of our common stock.



•

The fair market value of our senior notes and senior secured term loan may be negatively impacted. Prior to the announcement of the Merger, our senior notes and senior secured term loan were trading at a substantial discount to their par value. Our senior notes traded publicly between 82%-95% of par value in the months leading up to the Merger announcement. A change in control provision in the indenture governing the senior notes gives senior note holders the right to put their senior notes back to the Company at 101% of par value. If the Merger is not consummated and as a result the change in control provision is not triggered, we expect that our senior notes and senior secured term loan will be substantially discounted back to the trading range they were in prior to the announced Merger which could impact our debt costs and our ability to secure additional financing.



•

The debt ratings of our senior notes and senior secured term loan may be negatively impacted. Our senior notes and senior secured term loan are rated by both Moody's and Standard & Poor's. Both rating agencies downgraded our senior notes and senior secured term loan during

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2012. If the Merger is not consummated, we may experience further debt rating downgrades which could impact our debt costs and our ability to secure additional financing.

•

Our teaming agreement for the Magnox contract rebid may be subject to renegotiation and our rebid may be less competitive. Our teaming partner for the Magnox contract rebid has indicated it is prepared to consent to the Merger, but will consider a variety of options, including renegotiating the terms of our teaming agreement, if the Merger is not consummated. In addition, the NDA is expected to consider the financial condition of each bidder as an important factor in awarding the Magnox contract. If the Merger is not consummated, our financial condition will be substantially less favorable, and could significantly adversely impact the competitiveness of our bid. Lastly, the NDA has required successful bidders for similar contracts to provide a substantial parent guarantee. If the Merger is not consummated, the terms of our existing debt agreements would likely require us to seek a discretionary amendment from our existing lenders in order to allow us to provide a parent guarantee. There can be no assurance that our existing lenders would consent to such an amendment of debt agreements.



•

The Company will be less able to reduce the Zion project letter of credit costs (discussed below) and will be more likely to suffer asset depletion under the parent guarantees provided to Exelon in connection with the Zion project (discussed below). The Company's best opportunity to reduce risk on the project and lower project related letter of credit costs is to team with a partner with a strong balance sheet. The probability of finding a willing partner will be significantly lower if the Merger is unsuccessful and the Company's current debt structure continues.



•

We may not be able to win future projects because we will not be in a financial position to provide sufficient financial assurances or other financial instruments required for such projects. For example, as a result of the rating downgrade of our debt in June 2012, an insurance carrier quoted renewal premiums at a significant increase to the existing premiums for the assurance associated with our closure obligations at two of our facilities. The premiums were unacceptable to the Company, and as a result, we had to issue letters of credit in lieu of the insurance policies. This resulted in an increased expense to the Company.



•

We could be adversely affected by litigation that has been or will be initiated in connection with the Merger. Whenever a transaction of this magnitude fails to close, there is a significant risk that litigation will follow, which may require significant attention from management and sizeable resources from the Company



•

We could be required to pay a termination fee of $13.6 million to an affiliate of Energy Capital Partners or its designee in certain circumstances.

We may be obligated to make certain expense reimbursement payments to Energy Capital Partners.

        If the Merger Agreement is terminated under certain circumstances, we could be required to make an expense reimbursement payment to Energy Capital Partners. However, the amount of such reimbursement is limited to: (i) $10 million if the Merger Agreement is terminated on or within 90 days of the date of the Merger Agreement, (ii) $20 million at any time on or between 91 and 180 days after the date of the Merger Agreement, (iii) $30 million at any time on or after 181 days after the date of the Merger Agreement or (iv) $5.4 million if the Merger Agreement is terminated because the stockholder approval was not obtained and Energy Capital Partners' reimbursable expenses are due and payable.

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The pendency of our agreement to be acquired by Energy Capital Partners could have a negative impact on our business.

        The announcement and pendency of the Merger may have a negative impact on our business, financial results and operations or disrupt our business by:

•

intensifying existing litigation or increasing new legal claims from our competitors and other third parties;



•

intensifying competition as our competitors may seek opportunities related to our pending Merger;



•

affecting our relationships with our customers, distributors, suppliers, regulators and employees;



•

limiting certain of our business operations prior to completion of the Merger which may prevent us from pursuing certain opportunities without Energy Capital Partners' approval;



•

causing us to forego certain opportunities we might otherwise pursue absent the Merger Agreement;



•

impairing our ability to attract, recruit, retain, and motivate current and prospective employees who may be uncertain about their future roles and relationships with us following the completion of the Merger; and



•

creating distractions from our strategy and day-to-day operations for our employees and management and a strain on resources.

        Under the Merger Agreement, we have agreed to certain covenants that place restrictions on our ability to, without Parent's written approval (which, with respect to certain actions, cannot be unreasonably withheld), among other things, dispose of properties or assets, make unbudgeted capital expenditures, acquire substantial assets or equity interests of a third party, make substantial investments or enter into new lines of business, increase the compensation of certain of our employees or directors, pay certain bonuses or incentive compensation, grant new equity or non-equity based compensation awards, hire new employees, encumber shares of our capital stock, declare or pay dividends or make other distributions in respect of our capital stock, other than those between us and our subsidiaries, incur indebtedness, take certain actions with respect to our owned and leased real property, make certain changes to our corporate structure and enter into certain transactions with related parties or enter into new material contracts outside the ordinary course of business, in each case, until the earlier of the termination of the Merger Agreement and the effective time of the merger.

Amendments to the federal and state regulations that govern the classification of LLRW could negatively impact the Company's business.

        Federal regulations require that low-level radioactive waste be classified as Class A, B, or C prior to disposal. LLRW disposal facilities may only receive LLRW that complies with criteria set by state regulators, according to the NRC's LLRW classification. The NRC is proposing to amend its LLRW classification regulations to require new and revised site-specific analyses and to permit the development of criteria for waste acceptance based on the results of these analyses, rather than on just the current generic classification system. Ultimately these amendments could impact what waste our Clive, Utah disposal facility is permitted to accept for disposal. Any temporary or permanent disruption or decrease in the waste streams coming to Clive for disposal could have a significant material impact on the Company's business. We expect the NRC to finalize these amendments in late 2014 or 2015.

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Our licensed stewardship arrangement with Exelon exposes us to significant financial risks.

        The transaction with Exelon is the first of its kind and, therefore, required extensive assurances. The Exelon transaction is expected to prove the license stewardship initiative as a viable model, such that other utility companies will not require as many layers of financial assurance. The transaction with Exelon establishes a series of financial consequences intended to ensure that the Zion Station decommissioning trust fund does not fall below projected completion costs (a "Deficiency"). Whenever there is a Deficiency, ZionSolutions must defer collection of invoices from the trust fund ("deferred receivables") until the Deficiency is resolved. EnergySolutions, LLC and EnergySolutions, Inc. guaranteed ZionSolutions' performance; in a Deficiency scenario, these guarantees would deplete Company assets before the $200.0 million letter of credit would fund remaining decommissioning activities, as described below. If the ZionSolutions' deferred receivables reach $50 million, EnergySolutions must defer receivables from ZionSolutions or EnergySolutions, LLC must extend a loan to ZionSolutions or contribute capital to ZionSolutions such that ZionSolutions' own deferred receivables do not exceed $50 million and ZionSolutions is able to pay vendors for materials and services within established terms of trade payables and otherwise meet current operating expenses when such expenses are incurred and become due and payable . Deferral of receivables may also be triggered (up to, but not greater than, $5 million per month) if ZionSolutions fails to achieve certain milestones, subject to force majeure or schedule extension conditions. With respect to any deferral of receivables, such receivables may be collected when the Deficiency is resolved or the milestone is achieved, as applicable. Also, additional rent under the lease with Exelon may be required if substantial completion of the D&D activities is not achieved within ten years, subject to certain schedule extension conditions. Such additional rents would be $200,000 per month for the first year of delay, $800,000 per month for the second year of delay, $1,250,000 per month for the third year of delay and $1,750,000 per month for the fourth year of delay and beyond. As discussed above, the Exelon transaction also includes financial assurances beyond the deferral of receivables and additional rents. These include a pledge of the ZionSolutions equity to Exelon, a $200.0 million letter of credit (the proceeds of which may only be used for decommissioning by Exelon to the extent that Exelon exercises its right to ZionSolutions under the pledge), and a disposal easement at our Clive facility. To the extent that any of these deficiencies or events of default occur, there will be a substantial impact to our operations and financial condition because we have the contractual obligation to fund the operations of ZionSolutions if costs exceed the value of the trust fund.

        In February 2012, we completed a comprehensive review and assessment of the Zion Station project schedule, costs and related projected decommissioning trust fund values. Based on this review and assessment, there were no Deficiencies or events of default identified. Over the remaining life of the project, the decommissioning trust fund is not projected to fall below projected completion costs and there is no expectation that any Deficiency or event of default will occur, even in the unlikely event of the project being unprofitable. Nevertheless, all forward-looking projections and expectations regarding the Zion Station project are subject to various risks and uncertainties as noted below.

The performance of the Zion Station project is subject to various risks and uncertainties that are not entirely within our control and that could have a material adverse effect on this project's profitability.

        The profitability or loss of the Zion Station project is a function of project cost management and NDT fund investment earnings performance. If future project costs increase and all other factors remain constant, the profitability of the project may decrease and potentially result in a loss to ZionSolutions and the Company. Similarly, if the NDT fund investment earnings are lower than current projections and all other factors remain constant, the profitability of the project may decrease (and eventually, the loss on the project will increase) as a result of lower available funding. In early 2012, we completed a comprehensive schedule, cost and budget update for the Zion Station project. As a result of this update, we determined that (i) estimated project costs had increased from the original budgeted

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amounts and (ii) the originally estimated profit margin anticipated for the project had decreased to a range of approximately 10% to 15%. As a result of more conservative assumptions on NDT fund investment earnings and costs associated with the letters of credit securing our performance under the contracts governing the project, in June 2012 we announced that our estimated profit margin anticipated for the project had decreased to a range of approximately 5% to 10%.

        Because there are over seven years remaining on the project, there can be no assurance that our current estimates, assumptions and projections will prove accurate and all such forward-looking statements, including our projection of the project's profitability, could change materially. Our estimates, assumptions and projections are necessarily dependent upon future economic, market and other conditions over which we have no control. Accordingly, the expected profitability of the Zion Station project is uncertain. In the event actual project costs are higher than total realized NDT fund levels, we will realize no profit on the project and could incur a substantial loss that could have a material adverse effect on our business, financial condition and results of operations.

Letters of credit, surety bonds and other financial assurances are necessary for us to win certain types of new work.

        We are required to post, from time to time, standby letters of credit and surety bonds or to provide other financial assurances to support contractual obligations to customers as well as other obligations. These letter of credit and bonds indemnify the customer if we fail to perform our obligations under the contract.

        For example, in connection with our agreement with Exelon regarding the decommissioning of Zion Station, we delivered a $200.0 million letter of credit to Exelon relating to our present and future obligations. Under our contract with Exelon and our NRC license, the letter of credit must remain in place for the duration of the Zion Station project, which we expect will occur no earlier than 2020. The letter of credit is collateralized by $200.0 million in restricted cash, which we initially obtained in 2010 through borrowings on our senior secured credit facility. Although there are provisions for step downs in the amount of the letter of credit toward the end of the Zion Station project, any release of our obligation to maintain this letter of credit is at Exelon's discretion, and we do not expect that Exelon will release us from this obligation. Exelon may cause the letter of credit to be drawn upon to fund a backup trust upon the occurrence of one of the following conditions (i) our failure to maintain the required letter of credit from a qualified financial institution, (ii) our bankruptcy or the bankruptcy of ZionSolutions, (iii) the cessation by ZionSolutions to provide all or substantially all decommissioning services for a period of longer than one year, (iv) our failure to make a payment pursuant to our guarantee of ZionSolutions' obligations, or (v) ZionSolutions' failure to use diligent efforts to perform services according to the agreed upon schedule. If we exhaust our resources and ability to complete the D&D activities, and in the event of a material default under a credit support agreement we entered into with Exelon in connection with the Zion project, Exelon may exercise its rights to take possession of ZionSolutions. At that point, through its ownership of ZionSolutions, Exelon, and not the Company, would then be entitled to draw on the funds associated with the $200.0 million letter of credit. Under the terms of our financing arrangements, we obtained restricted cash and took on the liability for the letter of credit. In addition to providing this letter of credit, we also provided a guarantee as primary obligor to the full and prompt payment and performance by ZionSolutions of all its obligations under the various agreements with Exelon and pledged 100% of our interests in ZionSolutions to Exelon. We also granted an irrevocable easement of disposal capacity of 7.5 million cubic feet at our Clive disposal facility and purchased the insurance coverage required of a licensee under the NRC's regulations.

        If a letter of credit, bond or other financial assurance is required for a particular project and we are unable to obtain it due to insufficient liquidity or other reasons, we will not be able to pursue that project. Moreover, due to events that affect the insurance and bonding and credit markets generally, letters of credit, bonding and other financial assurances may be more difficult to obtain in the future or

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may only be available at significant additional cost. There can be no assurance that letters of credit, bonds or other financial assurances will continue to be available to us on reasonable terms. Our inability to obtain adequate letters of credit, bonds and other assurances, as a result, to bid on new work could have a material adverse effect on our business, financial condition and results of operations.

We operate in a highly regulated industry that requires us to obtain and to comply with, federal, state and local government permits and approvals.

        We operate in a highly regulated environment that requires us to obtain and comply with federal, state and local government permits and approvals. Any of these permits or approvals may be subject to denial, revocation or modification under various circumstances. Failure to obtain or comply with the conditions of permits or approvals may adversely affect our operations by temporarily suspending our activities or curtailing our work and may subject us to penalties and other sanctions. Renewal of existing permits could be denied or jeopardized for various reasons, including:

•

failure to provide adequate financial assurance for decommissioning or closure;



•

failure to comply with environmental and safety laws and regulations or permit conditions;



•

local community, political or other opposition;



•

executive action; or



•

legislative action.

        In addition, if new environmental legislation or regulations are enacted or existing laws or regulations are amended or are interpreted or enforced differently, we may be required to obtain additional or modify existing operating permits or approvals. Such changes may also cause us to incur additional expenses.

We operate in a politically sensitive environment and public perception of nuclear power and radioactive materials can affect our business.

        We operate in a politically sensitive environment. The risks associated with radioactive materials and the public perception of those risks can affect our business. Various public interest groups and political representatives frequently oppose the operation of processing and disposal sites for radioactive materials such as our Barnwell, South Carolina, Oak Ridge, Tennessee and Clive, Utah disposal facilities. For example, public interest groups and the former governor of Utah have made public statements regarding their desire to limit the source and volume of radioactive materials that we process and dispose at our Clive facility. The Utah Board of Radiation Control has also placed a temporary moratorium on the disposal of depleted uranium at our Clive facility even though depleted uranium is Class A waste that has previously been disposed of at our Clive facility. In addition, the NRC has announced that it is undertaking a limited rulemaking to require the preparation of a site-specific analysis at sites that dispose of significant quantities of depleted uranium. Although preliminary NRC analyses indicate that facilities such as our Clive facility will continue to be suitable for the disposal of depleted uranium, the Utah Board of Radiation Control has approved its own rule that requires a performance assessment prior to disposal of significant quantities of depleted uranium at our Clive facility. This assessment has been completed and submitted for review and approval. The review and approval process or other restrictions could result in a delay or changes in how we dispose of depleted uranium at our Clive facility. Any regulatory, environmental or legislative efforts to limit or delay the operations at any of our facilities will adversely affect our business.

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        The April 2011 natural disaster in Japan, which resulted in the release of radioactive material from the Fukushima nuclear power plant following the nuclear disaster there, highlights how public reaction can have a significant political influence and cause changes in governmental policies. Opposition by third parties can delay or prohibit the construction of new nuclear power plants and can limit the operation of nuclear reactors or the handling and disposal of radioactive materials. In the past, adverse public reaction, increased regulatory scrutiny and litigation have contributed to extended construction periods for new nuclear reactors, sometimes extending construction schedules by decades or more. Adverse public reaction and the perceived risks associated with nuclear power and radioactive material could also lead to increased regulation which limits or prohibits the activities of our customers. Our customers might also be subject to more onerous operating requirements. Any of the foregoing conditions or unforeseen adverse conditions in the future could have a material adverse impact on our business.

        In addition, we may seek to address public and political opposition to our business activities through voluntary limitations on our operations. These actions, however, divert time and resources away from our core business operations and strategies and may not achieve the results we desire. For example, as part of our response to public statements made by public interest groups and the former governor of Utah regarding their desire to limit the source and volume of radioactive materials that we process and dispose at our Clive facility, we voluntarily agreed with the former governor to withdraw a request for a license amendment to increase our overall capacity at our Clive facility.

We are subject to liability under environmental laws and regulations.

        We are subject to a variety of environmental, health and safety laws and regulations governing, among other things, discharges to air and water, the handling, storage and disposal of hazardous or radioactive materials and wastes, the remediation of contamination associated with releases of hazardous substances and human health and safety. These laws and regulations and the risk of attendant litigation can significantly impact project schedules and cost. In addition, the improper characterization, handling, testing, transportation or disposal of regulated materials or any other failure to comply with these environmental, health and safety laws, regulations, permits or licenses may result in fines or penalties from time to time and could subject us and our management to civil and criminal penalties, the imposition of investigatory or remedial obligations or the issuance of injunctions that could restrict or prevent our operations. These laws and regulations may also become more stringent, or be more stringently enforced, in the future.

        Various federal, state and local environmental laws and regulations, as well as common law, may impose liability for property damage and costs of investigation and clean-up of hazardous or toxic substances on property currently or previously owned by us or arising out of our waste management, environmental remediation or nuclear D&D activities. These laws may impose responsibility and liability without regard to knowledge of or causation of the presence of contaminants. The liability under these laws can be joint and several, meaning liability for the entire cost of clean-up can be imposed upon any responsible party. We have potential liabilities associated with our past radioactive materials management activities and with our current and prior ownership of various properties. The discovery of additional contaminants or the imposition of unforeseen clean-up obligations at these or other sites could have an adverse effect on our operations and financial condition.

        When we perform our services, our personnel and equipment may be exposed to radioactive and hazardous materials and conditions. We may be subject to liability claims by employees, customers and third parties as a result of such exposures. There can be no assurance that our existing liability insurance is adequate, that it will be able to be maintained or that all possible claims that may be asserted against us will be covered by insurance. A partially or completely uninsured claim at any of our facilities, if successful and of sufficient magnitude, could have a material adverse effect on our results of operations and financial condition.

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Our operations are subject to taxation and regulation by federal, state, local and other governmental entities.

        We have deferred tax assets for net operating loss carry-forwards. We also currently benefit from research and development credits which reduce our overall tax rate. The expiration of the net operating loss carry-forwards and inability to qualify for future tax credits or changes in governing rules and regulations could result in a material increase in our taxes and effective tax rate. We may not have the ability to pass on the effect of such increase to our customers and, as a result, our stockholders could bear the burden of any such tax increase. The risk of a material tax increase may be exacerbated by political pressure to limit our operations.

        Our facilities are also subject to political actions by government entities which can reduce or completely curtail their operations. For example, the state of South Carolina closed the Barnwell disposal site on July 1, 2008 to customers outside of the Atlantic Compact, which consists of South Carolina, New Jersey and Connecticut. Although the Barnwell closure did not have a significant impact on our revenue or net income, political pressures to reduce or curtail other operations could have a material adverse effect on our results of operations.

Our business depends on the continued operation of and adequate capacity at, our Clive, Utah disposal facility.

        Our disposal facility in Clive, Utah is a strategic asset and is vital to our business. This facility is the largest privately owned commercial facility for the disposal of Class A LLRW in the U.S. Because of the greater profitability of the Clive facility in comparison with the rest of our business, a loss of revenue from Clive would have a disproportionate impact on our gross profit and gross margin. The Clive facility is subject to the normal hazards of operating any disposal facility. In addition, access to the facility is limited and any interruption in rail or other transportation services to and from the facility will affect our ability to operate the facility.

        In December 2009, the governor of Utah announced he had reached an agreement with the DOE not to ship any additional depleted uranium from the Savannah River site to the Clive facility until a site-specific performance assessment of the Clive facility could be completed. These and other actions by states or the federal government may affect the operation, capacity, expansion or extension of the Clive facility. The Northwest Compact, which consists of Alaska, Hawaii, Idaho, Montana, Oregon, Utah, Washington and Wyoming was created pursuant to a federal statute that enable states to enter into interstate compacts for the purpose of managing LLRW. The Northwest Compact has asserted that it has authority over our Clive, Utah facility and on November 9, 2010, the U.S. Tenth Circuit Court of Appeals ruled that the Northwest Compact is statutorily and constitutionally permitted to exercise exclusionary authority over the Clive facility. Any of the foregoing actions may hinder, delay or stop shipments to the facility, which could impair our ability to execute disposal projects and significantly reduce future revenue.

        We believe that the Clive facility has sufficient capacity for approximately 30 years of operations based on our estimate of future disposal volumes, our ability to optimize disposal capacity utilization and the license amendment to convert volume capacity originally intended for 11e(2) waste to Class A LLRW that was approved in November 2012. If future disposal volumes increase beyond our expectations or if our other assumptions prove to be incorrect, then the remaining capacity at the Clive facility would be utilized more quickly than projected. Any interruption in our operation of the Clive facility or decrease in the effective capacity of the facility would adversely affect our business and any prolonged disruption in the operation of the facility or reduction in the capacity or useful life of the facility would have a material adverse effect on our business, financial condition and results of operations.

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Our international operations involve risks that could have a material adverse effect on our results of operations.

        For the year ended December 31, 2012, we derived 68.5% and 35.3% of our revenue and segment operating income from our operations outside of North America. For the year ended December 31, 2011, we derived 62.0% and 181.1% of our revenue and operating income from our operations outside of North America. Our business depends on the success of our international operations and we expect that our international operations will continue to account for a significant portion of our total revenue and operating income. In addition to risks applicable to our business generally, our international operations are subject to a variety of heightened or distinct risks, including:

•

recessions or inflationary trends in foreign economies and the impact on government funding and our costs of doing business in those countries;



•

the expansion of our business and operations in China, including challenges related to protecting our intellectual property and political risks;



•

difficulties in staffing and managing foreign operations;



•

changes in regulatory requirements;



•

foreign currency fluctuations;



•

the adoption of new and the expansion of existing, trade restrictions;



•

acts of war and terrorism;



•

the ability to finance efficiently our foreign operations;



•

high initial entry costs associated with new markets;



•

the possibility of greater than expected operating costs;



•

social, political and economic instability;



•

increases in taxes;



•

limitations on the ability to repatriate foreign earnings; and



•

natural disasters or other crises.

The loss of one or a few customers or a particular strategic asset could have an adverse effect on us.

        One or a few government and commercial customers have in the past and may in the future, account for a significant portion of our revenue in any one year or over a period of several consecutive years. For example, the NDA accounts for most of our revenue in the International segment. For the years ended December 31, 2012, 2011 and 2010, respectively, 63.8%, 61.0% and 57.6%, of our total consolidated revenue was generated from contracts funded by the NDA. In addition, from time to time we typically have contracts with various offices within the DOE, including with the Office of Environmental Management, the Office of Civilian Radioactive Waste Management, the National Nuclear Security Administration and the Office of Nuclear Energy. For the years ended December 31, 2012, 2011 and 2010, 11.0%, 15.3% and 21.7%, respectively, of our total consolidated revenue was from contracts funded by the DOE. Our business strategy and profitability rely on our ownership of unique disposal facilities. A significant amount of our revenue is derived from large one-time projects.

        The termination or expiration of a significant contract, the loss of a significant customer, the loss of a strategic asset or the lack of new project awards could have a materially adverse effect on our business. In addition, customers generally contract with us for specific projects and as projects are completed we may lose customers from year to year. For these reasons, we may be particularly sensitive

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to significant fluctuations in our revenue, liquidity and profitability. Our inability to replace this business could have an adverse effect on our operations and financial condition.

We may fail to win re-bids in the U.K. for the Magnox decommissioning contracts currently held by our subsidiary EnergySolutions EU Limited.

        The NDA contracts (the "Magnox Contracts") held by EnergySolutions EU Limited through its subsidiary Magnox Limited (formerly held by the Magnox North Limited and Magnox South Limited subsidiaries), in relation to the Magnox North sites and the Magnox South sites (the "Magnox Sites") have been extended and are scheduled to expire September 30, 2014 and can be extended for an additional six months at the option of the NDA. For the contract year ended March 31, 2013, we expect to recognize revenue of approximately $1.1 billion from these contracts. The competition of these contracts commenced in July 2012 and is expected to be completed in late 2013. We expect the re-bid of the Magnox Contracts and other material contracts under which we perform will involve intense competition. We are competing for the re-bid of the Magnox Contracts by teaming with one partner which will reduce our ownership percentage of the re-bid opportunity. Our failure to win the re-bid would have a material adverse effect on our results of operations. Even if we win the re-bid, the participation of a partner will reduce the revenue and profits accruing to us from these contracts. We also have goodwill and other intangible assets associated with our international business unit that would likely be impaired if we do not win the rebid of the Magnox Contract.

We have substantial debt, which could harm our financial condition, business and growth prospects.

        As of December 31, 2012, we had outstanding debt balances of $527.0 million under our senior secured credit facility and $300.0 million under our senior notes. Our substantial debt could have important consequences to us, including the following:

•

we must use a substantial portion of our cash flow from operations to pay interest and other fees on our debt, which reduces the funds available to us for other purposes;



•

our ability to obtain additional debt financing in the future for working capital, capital expenditures, acquisitions or general corporate purposes may be limited;



•

we may be unable to renew, replace or repay long-term debt as it becomes due, particularly in light of the tightening of lending standards as a result of the economic downturn;



•

we may not be able to renew or replace our long-term debt at terms that are acceptable to us;



•

our flexibility in reacting to changes in the industry may be limited and we could be more vulnerable to adverse changes in our business or economic conditions in general; and



•

we may be at a competitive disadvantage to competitors that have less debt or more favorable interest rates.

        Borrowings under our senior secured credit facility bear interest at variable rates. As of December 31, 2012, the interest rate of our term loan and revolving letter of credit facilities was 6.25%. Assuming that this interest rate and the principal balance remains constant during the following years, our interest payment obligations related to the term loan obligations would be approximately $32.9 million for each of the next five years. Based on the amount of variable rate debt outstanding and the interest rate at December 31, 2012, a hypothetical 1% increase in interest rates would increase our annual interest expense by approximately $5.3 million. If interest rates were to increase significantly, our ability to borrow additional funds may be reduced, our interest expense would significantly increase and the risks related to our substantial debt would intensify.

        Outstanding balances under our senior notes due 2018 bear interest at a 10.75% fixed interest rate. At this rate and assuming an outstanding balance of $300.0 million as of December 31, 2012, our

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annual debt service obligations would be $32.3 million. Based on the amount of outstanding debt and its fixed interest rate we must use a substantial portion of our cash flow from operations to redeem all or a portion of our senior notes and to pay interest and other fees associated with our senior notes, which could reduce the funds available to us for other purposes and could significantly increase our debt.

The agreements governing our debt restrict our ability to engage in certain business transactions.

        The agreements governing the senior secured credit facility restrict our ability to, among other things, engage in the following actions, subject to limited exceptions:

•

incur or guarantee additional debt;



•

declare or pay dividends to holders of our common stock;



•

make investments and acquisitions;



•

incur or permit to exist liens;



•

enter into transactions with affiliates;



•

make material changes in the nature or conduct of our business;



•

merge or consolidate with, or sell substantially all of our assets to, other companies;



•

enter into guarantees for, and investments into, certain subsidiaries and joint ventures;



•

make capital expenditures; and



•

transfer or sell assets.

The agreements governing our senior secured credit facility contain financial covenants which we may not meet with our future financial results.

        Our senior secured credit facility contains financial covenants requiring us to maintain specified maximum leverage and minimum cash interest coverage ratios. The results of our future operations may not allow us to meet these covenants, or may require that we take action to reduce our debt or to act in a manner contrary to our business objectives.

        Our failure to comply with obligations under our senior secured credit facility, including satisfaction of the financial ratios, would result in an event of default under the facilities. A default, if not cured or waived, would prohibit us from obtaining further loans under our senior secured credit facility and permit the lenders thereunder to accelerate payment of their loans and not renew the letters of credit which support our bonding obligations. If we are not current in our bonding obligations, we may be in breach of our contracts with our customers, which generally require bonding. In addition, we would be unable to bid or be awarded new contracts that required bonding. If our debt is accelerated, we currently would not have funds available to pay the accelerated debt and may not have the ability to refinance the accelerated debt on terms favorable to us or at all particularly in light of the tightening of lending standards as a result of the ongoing financial crisis. If we could not repay or refinance the accelerated debt, we would be insolvent and could seek to file for bankruptcy protection. Any such default, acceleration or insolvency would likely have a material adverse effect on the market value of our common stock.

We may not be able to generate or borrow enough cash to service our debt, which could result in bankruptcy or otherwise impair our ability to maintain sufficient liquidity to continue our operations.

        We rely primarily on our ability to generate cash from operations to service our debt. If we do not generate sufficient cash flows we may need to seek additional financing. If we are unable to obtain

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financing on terms that are acceptable to us, we could be forced to sell our assets or those of our subsidiaries to make up for any shortfall in our payment obligations under unfavorable circumstances. Our senior secured credit facility limits our ability to sell assets and also restricts our use of the proceeds from any such sale. If we default on our debt obligations, our lenders could require immediate repayment of our entire outstanding debt. If our lenders require immediate repayment on the entire principal amount, we will not be able to repay them in full, and our inability to meet our debt obligations could result in bankruptcy or otherwise impair our ability to maintain sufficient liquidity to continue our operations.

Our quarterly operating results may fluctuate significantly.

        Our quarterly operating results may fluctuate significantly because of a number of factors, many of which are outside our control, including:

•

the seasonality of our contracts, the spending cycle of our government customers and the spending patterns of our commercial customers;



•

the large size and irregular timing of payments under our international contracts;



•

the number and significance of projects commenced and completed during a quarter;



•

uncertainty in timing for receiving government contract awards;



•

our contract with the NDA, under which we generally recognize most efficiency fees in the first and fourth calendar quarters of each year;



•

unanticipated changes in contract performance, particularly with contracts that have funding limits;



•

the timing of resolutions of change orders, requests for equitable adjustments and other contract adjustments;



•

decisions by customers to terminate our contracts;



•

delays incurred in connection with a project;



•

seasonal variations in shipments of radioactive materials;



•

the timing of expenses incurred in connection with acquisitions or other corporate initiatives;



•

staff levels and utilization rates;



•

competitive factors in our industry; and



•

general economic or political conditions.

        Fluctuations in quarterly results, lower than anticipated revenue or our failure to meet financial guidance or published analyst forecasts, could negatively impact the price of our common stock.

Our life-of-plant contracts may not remain in effect through a nuclear power plant's decontamination and decommissioning or may subject us to additional liabilities.

        Our life-of-plant contracts are intended to provide us with revenue streams from the processing and disposal of substantially all LLRW and MLLW generated over the remaining lives of nuclear power plants operated by our commercial power and utility customers. These contracts are also meant to provide waste disposal revenue streams when the plants are shut down. However, these contracts may

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not actually remain effective for that entire period. A typical life-of-plant contract may terminate before D&D because the contract may:

•

have a shorter initial term than the useful life of the plant and the contract may not be extended by the utility;



•

include a provision that allows the customer to terminate the contract after a certain period of time or upon certain events such as the development of a new disposal facility within the plants compact region;



•

allow for renegotiation of pricing terms if market conditions change; and



•

allow for renegotiation of pricing terms based on increases in taxes and pass-through or other costs.

        The early termination or renegotiation of a life-of-plant contract may reduce our revenue and profits. In addition, life-of-plant contracts may expose us to liability in the event that any government action limits our ability to accept radioactive materials by capping the capacity of one or more of our disposal facilities or taking other actions that prevent us from disposing of LLRW and MLLW at our facilities or substantially increase the cost of doing so.

We may not be successful in winning new business from our government and commercial customers.

        We must be successful in winning new business from our government and commercial customers to replace revenue from completed projects and to sustain growth. Our business and operating results can be significantly influenced by the size and timing of a single material contract.

        Large government contracts become available for bidding on an infrequent basis. Our business strategy includes bidding on such contracts as the prime contractor, part of a joint venture or other team arrangement competing for a prime contract and as a first tier or lower subcontractor. We expect to bid on a significant portion of the approximately $30 billion of federal nuclear services contracts that we estimate will be awarded within the next five years. In the past, we have operated primarily as a subcontractor or in a minority position on a prime contractor team. In pursuing new prime contracts, either as a prime contractor or as part of a joint venture or other team arrangement, we will be competing directly against a number of large national and regional nuclear services firms, which may compete individually or as part of a joint venture or team, that may possess or develop superior technologies and/or have greater financial, management and marketing resources. Many of these companies, joint ventures and teams, also have long-established customer relationships and reputations. As a result, we may not be successful in being awarded the prime contract as the lead prime contractor or as part of a joint venture or other team arrangement for any of these contracts.

Investor lawsuits could adversely affect our business and financial position.

        Two purported class action lawsuits were filed against us in October 2009. In February 2010, the lawsuits were consolidated and a lead plaintiff was named. The lawsuit names as defendants EnergySolutions, Inc., certain of our current and prior directors, certain of our officers, the lead underwriters in our November 2007 initial public offering ("IPO") and July 2008 secondary offering (the "July 2008 Offering") and ENV Holdings LLC, our former parent. The lawsuit alleges that the registration statements and prospectuses for the IPO and July 2008 Offering contained inaccurate statements of material facts and omitted material information required to be disclosed therein. The lawsuit seeks to certify a class consisting of all purchasers of our stock from November 14, 2007 through October 14, 2008. Our stock price varied from approximately $27.85 to $5.64 during that period.

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        Under our organizational documents and contractual agreements, we have indemnification obligations to all of the named defendants. While we currently believe that our interests and defenses in the lawsuit are similar to those of the other parties who have also been named as defendants in the lawsuit, the interests and defenses of the other defendants could become different or diverge from ours in the future. If our interests were to diverge, we may incur additional costs and expenses that could have a material adverse effect on our business, financial condition and results of operations.

        If plaintiffs are successful in certifying a class and establishing the allegations in the lawsuit, damages could be significant and our financial condition and liquidity could be materially adversely affected. Although we believe that the lawsuit is without merit and we intend to vigorously defend it, there can be no assurance that we will prevail. An unfavorable resolution of this lawsuit could result in a substantial judgment against us and, even if we are successful in defending against the allegations of the lawsuit, we may incur significant costs for legal fees and indemnification obligations to other named defendants. We may also incur increased costs for renewal of our directors' and officers' liability insurance. The defense of the lawsuit may also involve the commitment of significant company resources and may demand the time and attention of our employees, officers and directors, particularly those who are personally named, to the detriment of our business operations.

        In addition, two shareholder derivative actions have been filed against us. On August 25, 2010, a shareholder derivative action was filed in the U.S. District Court for the District of Utah against EnergySolutions, Inc. as the nominal defendant, various current and prior directors and certain of our officers. On October 8, 2010, another shareholder derivative action was filed in the Supreme Court of New York, County of New York, against EnergySolutions, Inc., certain prior directors, ENV Holdings LLC, our former parent and Lindsay Goldberg & Bessemer, L.P. Both derivative complaints allege breach of fiduciary duty against the defendants. The underlying facts in both of the derivative complaints are substantively the same as those in the purported class-action lawsuit. There may be additional similar lawsuits filed in the future. Under our organizational documents and contractual agreements, we have indemnification obligations to certain of the named defendants in these derivative lawsuits. While we currently believe that our interests and defenses in these lawsuits are similar to those of the other parties who have also been named as defendants, the interests and defenses of the other defendants could become different or diverge from ours in the future. If our interests were to diverge, we may incur additional costs and expenses that could have a material adverse effect on our business, financial condition and results of operations.

        On October 12, 2012, we and the plaintiffs in these investor lawsuits reached an agreement in principle to resolve all claims made by the plaintiffs in their complaints underlying the proceeding. The agreement does not contain an admission of guilt or other wrongdoing on the part of the Company, or our officers, directors or affiliates. The court signed an order preliminarily approving the settlement on December 3, 2012. A hearing for final approval of the settlement is scheduled.

        Following the Company's January 7, 2013 announcement that it had entered into a Merger Agreement providing for the acquisition of the Company by Parent, an entity formed by Energy Capital Partners, ten purported class action lawsuits were brought against us, the members of our board of directors, Energy Capital Partners II, LLC, Parent and Merger Sub. Six lawsuits were filed in the Delaware Court of Chancery (collectively, "the Delaware actions"). On January 19, 2013, the Court of Chancery entered an order consolidating the Delaware actions. On January 28, 2013, the Court of Chancery entered an Order of Class Certification and Case Management which, among other things, certified a non opt-out class of EnergySolutions stockholders consisting of all persons who held shares of stock of EnergySolutions (excluding defendants named in the Delaware actions and their immediate family members, any entity controlled by any of the defendants, and any successors in interest thereto) at any time during the period from and including January 7, 2013, through the date of consummation or termination of the Merger.

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        On March 15, 2013, without admitting any wrongdoing and to avoid the burden, expense and disruption of continued litigation, EnergySolutions, Inc., the members of our board of directors, Energy Capital Partners II, LLC, Parent and Merger Sub entered into a memorandum of understanding with the plaintiffs in the Delaware actions providing for the settlement in principle of the claims brought by the plaintiffs in the Delaware actions. Pursuant to the memorandum of understanding, we included additional disclosures in our proxy statement requested by the plaintiffs in the Delaware actions. The parties to the Delaware actions are in the process of documenting the settlement and will present the settlement to the Delaware Court of Chancery for approval when that documentation is complete. In approving the settlement, the Delaware Court of Chancery may also require the Company to pay plaintiffs' attorney fees, the amount of which have not been determined.

        The other four lawsuits were filed in the Utah State District Court, Third Judicial District, Salt Lake County, (the "Utah actions"). On February 1, 2013, the Company and certain defendants filed a Motion to Dismiss or Stay, or in the Alternative for Extension of Time to Respond to Complaint in the Luck action, seeking to dismiss or stay the action in deference to the Delaware actions.

        Collectively, the Delaware actions and Utah actions generally allege that the individual defendants breached their fiduciary duties in connection with the Merger because the merger consideration is unfair, that certain other terms in the Merger Agreement are unfair, and that certain individual defendants are financially interested in the Merger. Some of the actions further allege that Energy Capital Partners, Parent and Merger Sub aided and abetted these alleged breaches of fiduciary duty. Among other remedies, the lawsuits seek to enjoin the Merger, or in the event that an injunction is not awarded, unspecified money damages, costs and attorneys' fees. We believe that each of the Delaware actions and Utah actions is without merit, and we intend to vigorously defend against all claims asserted to the extent not yet resolved.

        We believe the legal claims alleged against the Company in the complaints described above are without merit and we intend to vigorously defend these actions to the extent not yet resolved. For more information regarding the above referenced lawsuits, including their current status, see Item 3. Legal Proceedings in Part I of this Annual Report on Form 10-K.

Our failure to maintain our safety record could have an adverse effect on our business.

        Our safety record is critical to our reputation. Many of our government and commercial customers require that we maintain certain specified safety record guidelines to be eligible to bid for contracts. Furthermore, contract terms may provide for automatic termination in the event that our safety record fails to adhere to agreed-upon guidelines. As a result, our failure to maintain our safety record could have a material adverse effect on our business, financial condition and results of operations.

We may incur regulatory fines or lose our NDA contract fees if a significant accident were to occur at the power generating facilities.

        Under the Magnox Contracts, we manage 22 nuclear reactors, 1 of which is currently operating, for the NDA. The management and operation of such facilities subjects us to various risks including potential harmful effects on the environment and human health resulting from the storage, handling and disposal of radioactive materials and limitations on the amounts of types of insurance commercially available to cover potential losses.

        We are required to meet licensing and safety-related requirements imposed by the NDA and other regulatory agencies in the U.K. In the event of non-compliance, the NDA or other regulatory agencies may increase regulatory oversight, impose fines and/or shut down a facility, depending upon the assessment of the severity of the situation. Revised security and safety requirements promulgated by regulatory agencies could necessitate capital expenditures, as well as proportionate assessments against us to cover third-party losses.

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        If a nuclear incident were to occur at one of the nuclear facilities operated by us, there could be environmental, health and public safety consequences. A nuclear incident could lead to the termination of our position as the operator of that facility and/or other nuclear facilities and potentially impact other segments of our business.

The elimination or any modification of the Price-Anderson Act's indemnification authority, which is applicable to certain of our operations, could harm our business.

        The AEA comprehensively regulates the manufacture, use and storage of radioactive materials. Section 170 of the AEA, which is known as the Price-Anderson Act, provides for broad indemnification to commercial nuclear power plant operators and DOE contractors for liabilities arising out of nuclear incidents at power plants licensed by the NRC and at DOE nuclear facilities. That indemnification protects not only the NRC licensee or DOE prime contractor, but also companies like us that work under contract or subcontract for a licensed power plant or under a DOE prime contractor transporting radioactive material to or from a site. The indemnification authority of the NRC and DOE under the Price-Anderson Act was extended through 2025 by the Energy Policy Act of 2005.

        The Price-Anderson Act's indemnification provisions generally do not apply to our processing and disposal facilities and do not apply to all liabilities that we might incur while performing services as a contractor for the DOE and the nuclear energy industry. If an incident or evacuation is not covered under Price-Anderson Act indemnification, we could incur substantial losses, regardless of fault, which could have an adverse effect on our results of operations and financial condition. In connection with international transportation of toxic, hazardous and radioactive materials, it is possible for a claim to be asserted which may not fall within the indemnification provided by the Price-Anderson Act. If such indemnification authority is not applicable in the future, we may not be able to obtain commercially adequate insurance on a cost effective basis, or at all and our business could be adversely affected if the owners and operators of new facilities elect not to retain our services.

Our existing and future customers may reduce or halt their spending on nuclear services from outside vendors, including us.

        A variety of factors may cause our existing or future customers to reduce or halt their spending on nuclear services from outside vendors, including us. These factors include, but are not limited to:

•

the financial condition and strategy of the owners and operators of nuclear reactors;



•

a reduction in demand for nuclear generating capacity;



•

civic opposition to or changes in government policies regarding nuclear operations;



•

disruptions in the nuclear fuel cycle, such as insufficient uranium supply or conversion; or



•

accidents, terrorism, natural disasters or other incidents occurring at nuclear facilities or involving shipments of nuclear materials.

        These events also could adversely affect us to the extent that they result in the reduction or elimination of contractual requirements, the suspension or reduction of nuclear reactor operations, the reduction of supplies of nuclear raw materials, lower demand for nuclear services, burdensome regulation, disruptions of shipments or production, increased operational costs or difficulties or increased liability for actual or threatened property damage or personal injury.

Economic downturns and reductions in government funding could harm our businesses.

        Demand for our services has been and we expect that demand will continue to be, subject to significant fluctuations due to a variety of factors beyond our control, including economic and industry conditions. The stress experienced by global capital markets that began in the second half of 2007

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substantially increased during 2008 and continued through 2012. Recently, concerns over inflation, energy costs, geopolitical issues, the availability and cost of credit, the U.S. mortgage market and a depressed real estate market have contributed to increased volatility and diminished expectations for the global economy and expectations of slower global economic growth going forward. These factors, combined with volatile oil prices, low business and consumer confidence and high unemployment, have extended the economic downturn.

        During economic downturns, the ability of private and government entities to make expenditures on nuclear services is likely to be curtailed. Our Commercial Services customers have reduced their spending on nuclear services during the recent downturn and despite recent signs of recovery in equity markets, they have not increased their spending to levels prior to the downturn. In particular, our operations depend, in part, upon government funding and especially upon funding levels at the NDA and DOE. Significant changes in the level of government funding (for example, the annual budget of the NDA or DOE) or specifically mandated levels for individual programs that are important to our business could have an unfavorable impact on our business, financial position, results of operations and cash flows. For example, although the Magnox Contract funding for the 2012/2013 contract year increased over the 2011/2012 contract year, the NDA may reduce Magnox funding allocations in the future as the NDA directs funds to meet the funding requirements of other "high hazard" sites that are perceived to pose a greater degree of risk.

        If Congress does not pass annual appropriations bills in a timely fashion, it may delay spending on new government contracts. Any reduction in the level of government funding, particularly at the DOE, may result in, among other things, a reduction in the cleanup and waste handling projects put out for bid by the government or the curtailment of existing government waste disposal programs, either of which may result in a reduction in the number of contract award opportunities available to us, a reduction of waste shipment and disposal activities from DOE sites and an increase in our costs of obtaining a contract award or providing services under the contract.

        Market conditions have exerted downward pressure on the price of our common stock, which could limit our ability to raise capital, if necessary, through borrowings or the issuance of additional securities. A protracted economic downturn could exacerbate these adverse conditions.

        The current state of the financial markets could also exert pressure on our customers and could limit their ability to secure working capital. This may impact their liquidity and their ability to make timely payments of their invoices to us. The inability of our customers to make timely payments of our invoices may negatively impact our operating results and cash flows.

As a government contractor, we are subject to extensive regulation and contractual and other requirements relating to the formation, administration and performance of contracts and our failure to comply with applicable regulations and requirements could subject us to penalties that may restrict our ability to conduct our business.

        Our government contracts, which are primarily with the NDA and the DOE, are a significant part of our business. Allowable costs under U.S. government contracts are subject to audit by the U.S. government agencies such as the U.S. Defense Contract Audit Agency, the DOE, higher-tier contractors and other auditors as designated by our government customers. Similarly, some U.K. contracts are subject to audit by U.K. regulatory authorities, including the NDA. If these audits result in determinations that costs claimed as reimbursable are not allowed costs or were not allocated in accordance with applicable regulations, we could be required to reimburse government authorities for amounts previously received.

        Government contracts are often subject to specific procurement regulations, contract provisions and a variety of other requirements relating to the formation, administration, performance and accounting of these contracts. Many of these contracts include express or implied certifications of

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compliance with applicable regulations and contractual provisions. We may be subject to qui tam litigation brought by private individuals on behalf of the government under the federal False Claims Act, which could include claims for up to treble damages. Additionally, we may be subject to the Truth in Negotiations Act, which requires certification and disclosure of all factual costs and pricing data in connection with contract negotiations. Some of our projects receive funding under the ARRA or similar federal and state programs designed to provide financial assistance to create jobs, improve energy efficiency, encourage the development of renewable energy and meet critical infrastructure needs. The receipt of these funds subjects us to additional regulatory oversight and reporting requirements, which impose additional administrative burdens and costs on our business. Failure to comply with applicable regulations, requirements or statutes could disqualify us from receiving recovery funding, result in the termination or suspension of our existing government contracts, impose fines or other penalties on us, or result in our suspension or debarment from government contracting. If one or more of our government contracts are terminated for any reason, or if we are suspended or debarred from government work, we could suffer a significant reduction in expected revenue and profits. Furthermore, as a result of our government contracting or the receipt of recovery funding, claims for civil or criminal fraud may be brought by the government for violations of these regulations, requirements or statutes.

        We cannot assure that government audits will not result in the disallowance of significant incurred costs in the future. We may also be subject to qui tam litigation brought by private individuals on behalf of the government under the Federal Civil False Claims Act. If qui tam litigation resulted in a finding of contract violations against our company, the result could be the imposition of civil and criminal penalties or sanctions including treble damages, contract termination, forfeiture of profit, and/or suspension of payment, suspension of our eligibility as a government contractor, debarment and harm to our reputation. Any contract terminations, suspensions or debarment could reduce our profits and revenues significantly.

Our global operations require importing and exporting goods and technology across international borders.

        We are subject to U.S. and foreign international trade laws. To the extent that we export products, technical data and services outside the U.S., we are subject to U.S. laws and regulations governing international trade and exports, including but not limited to the International Traffic in Arms Regulations, the Export Administration Regulations and trade sanctions against embargoed countries, which are administered by the Office of Foreign Assets Control within the U.S. Department of the Treasury. The violation of such laws could subject us to civil or criminal penalties, including substantial monetary fines, or other adverse actions including denial of import or export privileges and could damage our reputation and therefore, our ability to do business.

Our commercial customers may decide to store radioactive materials on-site rather than contract with us to transport, process and dispose of their radioactive materials.

        Our LP&D segment's results of operations may be affected by the decisions of our commercial customers to store radioactive materials on-site, rather than contract with us to transport, process and dispose of their radioactive materials. There has been little regulatory, political or economic pressure for commercial utilities and power companies to dispose of radioactive materials at off-site facilities. Some of these commercial entities have the ability to store radioactive materials generated by their operations on-site, instead of contracting with an outside service provider to transport, process and dispose of the radioactive materials at an off-site location, such as our Clive facility. The decision to store radioactive materials on-site rather than contracting to dispose of them at an off-site facility may be influenced by, among other reasons, the accounting treatment for radioactive materials. Currently, the liability for the disposal of radioactive materials stored on-site may be capitalized on the owner's balance sheet and amortized over the expected on-site storage period. In contrast, radioactive materials

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shipped off-site for disposal are expensed during the period in which the materials are shipped off-site. The NRC has rejected our proposal to undertake an amendment of current NRC rules to permit operators of nuclear reactors to access decommissioning funds for transportation and disposal of retired large components of currently operating nuclear power plants. We will continue to work with the NRC to request, on a case-by-case basis, that operators of these nuclear reactors be permitted to access decommissioning funds for transportation and disposal of retired large components. The NRC's refusal to grant such requests could have an adverse impact on the prospects for our Commercial Services and LP&D segments.

Although we have entered into a license stewardship arrangement with Exelon and closed that transaction, we may not be successful in entering into other license stewardship arrangements with owners and operators of shut-down nuclear reactors.

        We continue to market our license stewardship solution to the owners and operators of shut-down nuclear reactors in SAFSTOR or monitored storage. Although we believe that our license stewardship initiative is an attractive alternative to deferring decommissioning and related risks to the reactor owner, the following factors may adversely affect our license stewardship initiative:

•

owners and operators of shut-down nuclear reactors have the option of maintaining their reactors in SAFSTOR or monitored storage, allowing their decommissioning trust fund to grow and eventually pursue a D&D program in the future;



•

uncertainty regarding the appropriate tax and regulatory treatment of aspects of our license stewardship initiative may prevent owners and operators of nuclear power plants from entering into these kinds of arrangements with us;



•

if a plant's decommissioning trust fund has decreased or failed to grow, the fund may not be large enough to make license stewardship economically feasible;



•

we may fail to obtain the necessary approvals and licenses from the NRC and the applicable state public utility commission on terms we find acceptable, or at all;



•

these contracts may require us to post letters of credit or surety bonds that we may be unable to obtain on reasonable terms, or at all;



•

as the owner of the reactor assets and the holder of the NRC license, we may be subject to unforeseen environmental liabilities, including fines for non-compliance with environmental requirements and costs associated with the clean-up of unanticipated contamination; and



•

if we underestimate the costs or timing of D&D activities at a particular site, the project may not be profitable for us.

        Under our license stewardship initiative we will assume the D&D obligations of owners of shut-down nuclear reactors or other nuclear facilities. We anticipate the costs of this process will be paid exclusively from the decommissioning trust fund of the related facility. We would commit to undertake a particular arrangement only if we believed the decommissioning trust fund would be sufficient to fund the D&D activities including a reasonable profit. However, if we fail to appropriately manage the investment of the trust fund, to achieve a targeted return, or such funds are adversely affected by market conditions or investment returns, there may not be sufficient funds in the trust fund to complete the obligations we have assumed. Moreover, the costs of D&D could exceed the amounts in the trust fund and we may not be able to draw from other sources of funds, including funds from our other operations, to meet the costs of the project. Any of these outcomes would expose us to significant financial risk.

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Our operations involve the handling, transportation and disposal of radioactive and hazardous materials and could result in liability without regard to our fault or negligence, including accidents involving the release of such materials.

        Our operations involve managing radioactive and hazardous materials, including handling, transportation and disposal. Failure to properly manage these materials could pose a health risk to humans and could cause personal injury and property damage (including environmental contamination). If an accident were to occur, its severity could be significantly affected by the volume of the materials and the speed of corrective action taken by emergency response personnel, as well as other factors beyond our control, such as weather and wind conditions. Actions taken in response to an accident could result in significant costs.

        In our contracts, we seek to protect ourselves from liability associated with accidents, but there is no assurance that such contractual limitations on liability will be effective in all cases or that our insurance (or the insurance of our customers) will cover all the liabilities we have assumed under those contracts. The costs of defending against a claim arising out of a nuclear incident or precautionary evacuation and any damages awarded as a result of such a claim, could adversely affect our results of operations and financial condition.

        We maintain insurance coverage as part of our overall risk management strategy and to comply with specific requirements in our financing agreements and in other contracts. These policies do not protect us against all liabilities associated with accidents or for unrelated claims. In addition, comparable insurance may not continue to be available to us in the future at acceptable prices, or at all.

We are engaged in highly competitive businesses and typically must bid against other competitors to obtain major contracts.

        We are engaged in highly competitive businesses in which most of our contracts are awarded through competitive bidding processes. We compete with national and regional firms with nuclear services practices, as well as small or local contractors. Some of our competitors have greater financial and other resources than we do, which can give them a competitive advantage. In addition, even if we are qualified to work on a new government contract, we might not be awarded the contract because of existing government policies designed to protect small businesses and underrepresented minority contractors. Competition places downward pressure on our contract prices and profit margins. Intense competition is expected to continue for nuclear service contracts, challenging our ability to maintain strong growth rates and acceptable profit margins and likely requiring the expenditure of additional marketing costs and related expenses to retain market share. If we are unable to meet these competitive challenges, we could lose market share and experience an overall reduction in our profits.

        WCS commenced operations and began accepting commercial Class A, B and C LLRW in April 2012 at its site near Andrews, Texas. In addition, other competitors have requested regulatory relief from the NRC to dispose of extremely low-level commercial Class A waste in non-licensed facilities such as specialized landfills. These developments present additional competitive risks that could adversely affect our business, particularly as it relates to the revenue and gross profits from the operation of our Clive, Utah disposal facility.

Our business and operating results could be adversely affected by losses under fixed-price contracts.

        Fixed-price contracts require us to perform all work under the contract for a specified lump-sum. Fixed-price contracts expose us to a number of risks not inherent in cost-reimbursable contracts, including underestimation of costs, ambiguities in specifications, unforeseen costs or difficulties, problems with new technologies, delays beyond our control, failures of subcontractors to perform and regulatory, economic or other changes that may occur during the contract period. If we have

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underestimated the costs of our fixed-price contracts, we may experience losses on such contracts and, in certain circumstances, those losses could be material.

If we guarantee the timely completion or performance standards of a project, we could incur additional costs to cover our guarantee obligations.

        In some instances, we guarantee a customer that we will complete a project by a scheduled date or within a specified budget. For example, in connection with our license stewardship initiative, we guarantee that we will complete the decommissioning of a nuclear power plant that is currently shut down within both a particular time frame and budget. Sometimes, we also guarantee that a project, when completed, will achieve certain performance standards. If we fail to complete the project as scheduled or budgeted, or if the project fails to meet guaranteed performance standards, we may be held responsible for the impact to the customer resulting from any delay or for the cost of further work to achieve the performance standards, generally in the form of contractually agreed-upon penalty provisions. As a result, the project costs could exceed our original estimate, leading to reduced profits or a loss for that project.

Our use of proportional performance accounting could result in a reduction or elimination of previously reported profits.

        A significant portion of our revenue is recognized using the proportional performance method of accounting. Generally, the proportional performance accounting practices we use result in recognizing contract revenue and earnings based on output measures, where estimable, or on other measures such as the proportion of costs incurred to total estimated contract costs. For some of our long-term contracts, completion is measured on estimated physical completion or units of production. The cumulative effect of revisions to contract revenue and estimated completion costs, including incentive awards, penalties, change orders, claims and anticipated losses, is recorded in the accounting period in which the amounts are known or can be reasonably estimated. Due to uncertainties inherent in the estimation process, it is possible that actual completion costs may vary from estimates. A significant downward revision to our estimates could result in a material charge to our results of operations in the period of such a revision. For example, during 2012, due to changes in future cost estimates to complete our Salt Waste project we recorded a reversal of previously recorded incentive fee in the amount of $5.6 million.

Acquisitions that we pursue may present unforeseen integration obstacles and costs, increase our debt and negatively impact our operating results.

        We may pursue selective acquisitions of other nuclear services businesses, both domestic and international, that we expect will enhance our existing portfolio of services and strengthen our relationships with our government and commercial customers. We cannot give any assurance as to whether any such transaction could be completed or as to the price, terms or timetable on which we may do so. If we are able to consummate any such acquisition, it could result in dilution of our earnings, an increase in indebtedness or other consequences that could be adverse.

        The expense incurred in consummating acquisitions, or our failure to integrate such businesses successfully into our existing businesses, could result in our incurring unanticipated expenses and losses. Furthermore, we may not be able to realize anticipated benefits from acquisitions. The process of integrating acquired operations into our existing operations may result in unforeseen operating difficulties and may require significant financial resources that would otherwise be available for the

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ongoing development or expansion of existing operations. Some of the risks associated with acquisitions include:

•

failure to complete anticipated acquisitions or achieve the expected benefits from completed acquisitions;



•

potential disruption of our ongoing business and distraction of management;



•

unexpected loss of key employees or customers of the acquired company;



•

conforming the acquired company's standards, processes, procedures and controls with our operations;



•

hiring additional management and other critical personnel; and



•

increasing the scope, geographic diversity and complexity of our operations.

        We may not be able to identify suitable acquisition targets or negotiate attractive terms in the future. In addition, our ability to complete acquisitions is limited by covenants in our senior secured credit facility and other credit arrangements and by our financial resources, including available cash and borrowing capacity. Given the serious decline in our stock price and tight debt markets, we may be unable to make acquisitions. If we are unable to make successful acquisitions, our ability to grow our business could be adversely affected.

Our success depends on attracting and retaining qualified personnel in a competitive environment.

        Our operations require the services of highly qualified operations personnel and management, skilled technology specialists and experts in a wide range of scientific, engineering and health and safety fields. Partly because no new nuclear reactors have commenced construction in the U.S. since the mid-1970s, there have been a limited number of qualified students graduating from universities with specialized nuclear engineering or nuclear science-based degrees. As a result, the nuclear services industry is experiencing a shortage of qualified personnel. Also, the Company has continued to realign senior management to reflect ongoing changes in business opportunities, priorities and strategies. As part of the realignment, several of our executive officers and members of senior management are no longer with the Company. We face increasing competition and expense to attract and retain other qualified personnel. Loss of key personnel or failure to attract qualified management and other personnel could have an adverse effect on our ability to operate our business and execute our business strategy.

An impairment charge could have a material adverse effect on our financial condition and results of operations.

        We are required to test acquired goodwill for impairment on an annual basis. Goodwill represents the excess of the amount we paid to acquire our subsidiaries and other businesses over the fair value of their net assets at the date of the acquisition. We have chosen to complete our annual impairment reviews of goodwill in the second quarter of each fiscal year. We also are required to test goodwill for impairment between annual tests if events occur or circumstances change that would more likely than not reduce our enterprise fair value below its book value. In addition, we are required to test our finite-lived intangible assets for impairment if events occur or circumstances change that would indicate the remaining net book value of the finite-lived intangible assets might not be recoverable. These events or circumstances could include a significant change in the business climate, including a significant sustained decline in an entity's market value, legal factors, operating performance indicators, competition, sale or disposition of a significant portion of our business, potential government actions towards our facilities and other factors. If the fair market value of our reporting units is less than their book value, we could be required to record an impairment charge. The valuation of reporting units

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requires judgment in estimating future cash flows, discount rates and other factors. In making these judgments, we evaluate the financial health of our business, including such factors as industry performance, changes in technology and operating cash flows. Changes in our forecasts or decreases in the value of our common stock could cause book values of certain reporting units to exceed their fair values, which may result in goodwill impairment charges. The amount of any impairment could be significant and could have a material adverse effect on our reported financial results for the period in which the charge is taken.

        Due to changes in management, decreased earnings guidance and a debt rating downgrade that occurred during the latter part of the second quarter of 2012, our stock price and corresponding market capitalization declined significantly. As a result management performed a comprehensive review of its financial forecasts and adjusted its estimates of future cash flows. These events prompted us to perform an interim goodwill impairment test as of both June 30, 2012 and September 30, 2012. Based on the first step of the analysis each of our reporting units' fair value exceeded their carrying value. However, as of September 30, 2012, the fair value of the International reporting unit exceeded its carrying value by less than 5% using a weighted average discount rate of 20% and a residual growth rate of 2.5%. The goodwill balance of our International reporting unit as of September 30, 2012 was $55.0 million. A hypothetical increase in the weighted average discount rate of 0.5% would decrease the calculated fair value as a percentage of book value for the International reporting unit by 1.6%. The calculated fair value of each of our other reporting units exceeded the reporting unit's book value by amounts greater than 5% of their book value. Although the fair value of each of the reporting units currently exceeds their carrying value, a deterioration of market conditions, an adverse change in regulatory requirements, reductions in government funding, failure to win new business or re-bids of current contracts or a continuation of the decline in our stock price and corresponding market capitalization could result in a future impairment loss.

        As of December 31, 2012, we had $308.6 million of goodwill and $238.0 million of finite-lived intangible assets, which collectively represented 20.5% of our total assets of $2.7 billion as of December 31, 2012.

We rely on intellectual property laws, trade secrets and confidentiality agreements to protect our intellectual property. Our failure to protect our intellectual property rights could adversely affect our future performance and growth.

        Protection of our proprietary processes, methods and other technology is important to our business. Failure to protect our existing intellectual property rights may result in the loss of valuable technologies. We rely on patent, trade secret, trademark and copyright law as well as judicial enforcement to protect such technologies. A majority of our patents relate to the development of new products and processes for the processing and/or disposal of radioactive materials. Our intellectual property could be challenged, invalidated, circumvented or rendered unenforceable.

        We also rely upon unpatented proprietary expertise, continuing technological innovation and other trade secrets to develop and maintain our competitive position. We generally enter into confidentiality agreements with our employees and third parties to protect our intellectual property, but these agreements are limited in duration and could be breached and therefore they may not provide meaningful protection for our trade secrets or proprietary expertise. Adequate remedies may not be available in the event of an unauthorized use or disclosure of our trade secrets and expertise. Others may obtain knowledge of our trade secrets through independent development or other access by legal means. The failure of intellectual property laws or our confidentiality agreements to protect our processes, technology, trade secrets and proprietary expertise and methods could have an adverse effect on our business by jeopardizing our rights to our intellectual property.

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        In addition, effective intellectual property protection may be limited or unavailable in some foreign countries where we may pursue operations.

If our partners fail to perform their contractual obligations on a project, we could be exposed to legal liability, loss of reputation and reduced profit on the project.

        We often perform projects jointly with contractual partners. For example, we have entered into contracting consortia and other contractual arrangements to bid and perform jointly on large projects. Success on these joint projects depends in part on whether our partners fulfill their contractual obligations satisfactorily. If any of our partners fails to perform its contractual obligations satisfactorily, we may be required to make additional investments and provide additional services in order to compensate for that partner's failure. If we are unable to adequately address our partner's performance issues, then our customer may exercise its right to terminate a joint project, exposing us to legal liability, reputational harm and reduced profit.

        Our collaborative arrangements also involve risks that participating parties may disagree on business decisions and strategies. These disagreements could result in delays, additional costs and risks of litigation. Our inability to successfully maintain existing collaborative relationships or enter into new collaborative arrangements could have a material adverse effect on our results of operations.

We conduct a portion of our operations through joint venture entities, over which we may have limited control.

        We currently have equity interests in joint ventures and may enter into additional joint ventures in the future. We cannot control the actions of our joint venture partners and as with most joint venture arrangements, differences in views among the joint venture participants may result in delayed decisions or disputes. We also typically have joint and several liabilities with our joint venture partners under the applicable contracts for joint venture projects. These factors could potentially harm the business and operations of a joint venture and, in turn, our business and operations.

        Operating through joint ventures in which we are minority holders results in us having limited control over many decisions made with respect to projects and internal project, financial and other controls. These joint ventures may not be subject to the same requirements regarding internal controls and financial reporting that we follow. As a result, problems may arise with respect to the joint ventures that could adversely affect our ability to respond to requests, meet contractual obligations or comply with internal control requirements to which we are otherwise subject.

Our dependence on subcontractors and equipment manufacturers could adversely affect us.

        We often rely on subcontractors and equipment manufacturers to complete our projects. For example, when providing D&D services to a government customer, we may rely on one or more subcontractors to conduct demolition work. To the extent that we cannot engage subcontractors or acquire equipment or materials to provide such services, our ability to complete the project in a timely fashion or at a given profit margin may be impaired. Our LP&D segment also enters into contracts with various railroads for the transportation of radioactive materials from project sites to our processing and disposal facilities. In the event that the railroads fail to deliver radioactive materials to our facilities on time, we could be forced to delay recognizing LP&D revenue until the time of delivery.

        In addition, if a subcontractor or a manufacturer is unable to deliver its services, equipment or materials according to the negotiated terms for any reason, including the deterioration of its financial condition, we may be required to purchase those services, equipment or materials from another source at a higher price. This may reduce our profitability or result in a loss on the project for which the services, equipment or materials were needed.

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We may not be successful in executing our business strategies.

        We must be successful in executing long-term strategic plans and opportunities which include winning new business from our government and commercial customers and in diversifying our business into other areas that allow us to exploit our core competencies. If we are not successful in these endeavors, we may not achieve our financial goals.

As a public company, we are subject to additional financial and other reporting and corporate governance requirements that may be difficult for us to satisfy.

        As a public company, we are obligated to file with the SEC annual and quarterly information and other reports that are specified in Section 13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). We are also required to ensure that we have the ability to prepare financial statements that are fully compliant with all SEC reporting requirements on a timely basis. We are also subject to other reporting and corporate governance requirements, including the requirements of the NYSE and certain provisions of the Sarbanes-Oxley Act of 2002 and the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 and the regulations promulgated under those Acts, which impose significant compliance obligations upon us. As a public company, we are required to, among other things:

•

prepare and distribute periodic public reports and other shareholder communications in compliance with our obligations under the federal securities laws and NYSE rules;



•

clearly define the roles and duties of our board of directors and committees of the board;



•

institute comprehensive financial reporting and disclosure compliance functions;



•

involve and retain outside counsel and accountants in the activities listed above;



•

maintain an effective investor relations function; and



•

establish and monitor internal policies, including those relating to disclosure controls and procedures.

        These requirements require a significant commitment of resources. We may not be successful in implementing and monitoring specific requirements and the failure to do so could adversely affect our business or operating results. In addition, if we fail to satisfy the requirements with respect to our internal accounting and audit functions, our ability to report our operating results on a timely and accurate basis could be impaired.

If we or our independent registered public accounting firm identify a material weakness in our internal controls and such material weakness is not properly remediated, it could result in material misstatements of our financial statements in future periods.

        We or our independent registered public accounting firm may, in the future, identify a material weakness in our internal control over financial reporting. A material weakness is defined by the standards issued by the Public Company Accounting Oversight Board as a significant deficiency, or combination of significant deficiencies, that results in more than a remote likelihood that a material misstatement of the annual or interim financial statements will not be prevented or detected.

        If material weaknesses in our internal control over financial reporting are identified in the future, we may be unable to provide required financial information in a timely and reliable manner, or otherwise comply with the standards applicable to us as a public company and our management may not be able to report that our internal control over financial reporting is effective in accordance with Section 404 of the Sarbanes-Oxley Act. There could also be a negative reaction in the markets due to a

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loss of investor confidence in us and the reliability of our financial statements and, as a result, our business may be harmed and the price of our common stock may decline.

Our business could be negatively impacted by security threats, including physical and cyber security threats.

        We face various security threats, including cyber threats, threats to the physical security of our facilities and infrastructure, and threats from terrorist acts, as well as the potential for business disruptions associated with these threats. Although we utilize a combination of tailored and industry standard security measures and technology to monitor and mitigate these threats, we cannot guarantee that these measures and technology will be sufficient to prevent security threats from materializing.

        We have been, and will likely continue to be, subject to cyber-based attacks and other attempts to threaten our information technology systems, including attempts to gain unauthorized access to our proprietary or classified information and attacks from computer hackers, viruses, malicious code and other security problems. As a U.S. government contractor and our role within the nuclear industry, we may be prone to a greater number of those threats than companies in other industries. From time to time, we experience system interruptions and delays; however, prior cyber-based attacks directed at us have not had a material adverse impact on our results of operations. Due to the evolving nature of these security threats, however, the impact of any future incident cannot be predicted.

        The costs related to cyber or other security threats or disruptions may not be fully insured or indemnified by other means. Occurrence of any of these events could adversely affect our internal operations, the services we provide to customers, the value of intellectual property, our future financial results, our reputation or our stock price.

We must successfully upgrade and maintain our information technology systems.

        We rely on various information technology systems to manage our operations. We are currently implementing modifications and upgrades to our systems, including making changes to legacy systems, replacing legacy systems with successor systems with new functionality, consolidating duplicative systems and acquiring new systems. These types of activities subject us to inherent costs and risks associated with replacing and changing these systems, potential disruption of our internal control structure, substantial capital expenditures, additional administration and operating expenses, retention of sufficiently skilled personnel to implement and operate the new systems, demands on management time and other risks and costs of delays or difficulties in transitioning to new systems or of integrating new systems into our current systems. Our system implementations may not result in productivity improvements at a level that outweighs the costs of implementation, or at all. In addition, the implementation of new technology systems may cause disruptions in our business operations and have an adverse effect on our business, cash flows and operations, if not anticipated and appropriately mitigated.

Because we publish earnings guidance, our common stock may be subject to increased volatility and we may be subject to lawsuits by investors.

        Because we publish earnings guidance, we are subject to a number of risks. Based on the timing of winning new contracts, regulatory decision making and other uncertainties relating to assumptions that management makes in calculating our expected financial results, actual results may vary from the guidance we provide investors. Our stock price may decline following an announcement of disappointing earnings or earnings guidance or if we revise our earnings guidance downward as the estimates and assumptions we make in calculating guidance become more certain.

        Our earnings guidance reflects our assumptions regarding future performance, including, among other things, the likelihood of securing and performing work under new contracts. If we fail to secure and perform work under contracts in accordance with our assumptions, we may be unable to achieve

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our earnings guidance. Some companies that have made downward revisions to their earnings guidance or did not meet the guidance provided have been subject to lawsuits by investors. Such lawsuits may result in adverse settlements or judgments. Even if such lawsuits are dismissed or have no merit, they may be costly and may divert management attention and other resources away from our business, which could harm our business and adversely affect the price of our common stock.

Item 1B.    Unresolved Staff Comments.

        None.

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Item 2.    Properties.

        As of December 31, 2012, we owned 11 properties, leased 31 properties and operated 1 property pursuant to a long-term lease with the state of South Carolina. We believe that our current facilities are sufficient for the operation of our business and that suitable additional space in various local markets is available to accommodate any reasonable foreseeable needs that may arise. The following table provides summary information of our owned and leased real property, exclusive of renewal options:

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Item 3.   Legal Proceedings

False Claim Act Proceeding

        On August 7, 2002, Roger Lemmon, Patrick Cole and Kyle Gunderson filed a "qui tam" complaint in the U.S. District Court for the District of Utah as "relators" on behalf of the U.S. government, against Envirocare (our predecessor), pursuant to the False Claims Act. The complaint alleges that Envirocare (a) violated various contractual and regulatory requirements related to waste disposal at the Clive, Utah facility; (b) failed to report the violations; and (c) falsely implied, in invoice documentation to the U.S. government, that Envirocare had complied with all applicable contractual and regulatory requirements. The complaint alleges that the U.S. government is entitled to recover substantial (but unspecified) damages, including treble damages. The U.S. government declined to pursue the case on its own behalf. The U.S. District Court for the District of Utah dismissed the complaint three times, each time with leave to amend the complaint. On August 4, 2010, the U.S. Tenth Circuit Court of Appeals reversed the third dismissal.

        On September 14, 2012, we and the plaintiffs in this matter reached an agreement in principle to resolve all claims made by the plaintiffs in their complaint underlying the proceeding. The agreement does not contain an admission of guilt or other wrongdoing on the part of the Company, or our officers, directors or affiliates. The confidential settlement arrangement, the final terms of which are subject to the approval of the U.S. government, is not expected to have a material adverse effect on our financial position, results of operations or cash flows.

City of Roseville Employees' Retirement System v. EnergySolutions, Inc., et al.

        On October 9, 2009, a purported class-action lawsuit captioned City of Roseville Employees' Retirement System v. EnergySolutions, Inc., et al., Civil No. 09 CV 8633 ("City of Roseville Lawsuit") was filed in the U.S. District Court for the Southern District of New York. On October 12, 2009, a second complaint captioned Building Trades United Pension Trust Fund vs. EnergySolutions, Inc., et al., Civil No. 09 CV 8648 (together with the City of Roseville Lawsuit, the "Related Actions") was filed in the same court. On February 18, 2010, the court consolidated the Related Actions and appointed a lead plaintiff. On April 20, 2010, the lead plaintiff filed its consolidated amended complaint. The consolidated amended complaint names as defendants EnergySolutions, Inc., certain of our current and prior directors, certain of our prior officers, the lead underwriters in our November 2007 initial public offering ("IPO") and July 2008 secondary offering (the "July 2008 Offering") and ENV Holdings, LLC, our former parent.

        On June 18, 2010, the defendants in the Related Actions filed a motion to dismiss the consolidated amended complaint. Rather than oppose the defendants' motion to dismiss, the lead plaintiff filed a second consolidated amended complaint on August 4, 2010, expanding on certain allegations in the consolidated amended complaint and adding certain new allegations. The plaintiffs bring claims under Sections 11, 12(a)(2) and 15 of the Securities Act of 1933, as amended (the "Securities Act") against all defendants and Sections 10(b) and 20(a) of the Exchange Act and SEC Rule 10b-5 promulgated thereunder against all defendants except the underwriter defendants. The plaintiffs allege that the Company's registration statements and prospectuses and other public disclosures in connection with the IPO and July 2008 Offering contained misstatements and/or omissions of material fact. Specifically, the plaintiffs allege that the defendants made material misstatements and/or omissions relating to five categories of the Company's business: life of plant contracts, opportunities in the shut-down nuclear reactor market, the Zion Station project, the Company's rule making petition to the NRC to permit the use of decommissioning funds for disposal of major components prior to the cessation of activities at nuclear facilities and global macroeconomic conditions. The plaintiffs seek to include all purchasers of our common stock from November 14, 2007 through October 14, 2008, as a plaintiff class and seek

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damages, costs and interest, rescission of the IPO and July 2008 offering and such other relief as the court may find just and proper.

        On September 17, 2010, the defendants in the Related Actions filed a motion to dismiss the second consolidated amended complaint. The lead plaintiff filed an opposition to the defendants' motion to dismiss on November 2, 2010 and the defendants filed a reply memorandum of law in further support of defendants' motion to dismiss the second consolidated amended complaint on December 10, 2010. On June 16, 2011, the court heard oral argument on the motion to dismiss. On September 30, 2011, the court granted in part and denied in part the defendants' motion to dismiss the second consolidated amended complaint. Specifically, the court, among other things, dismissed all claims against all defendants relating to the alleged material misstatements and/or omissions relating to the state of the Zion Station project and the potential adverse effects of general macroeconomic conditions and dismissed certain other claims against certain defendants. Further, the court denied the defendants' motion to dismiss the claims related to the alleged material misstatements and/or omissions relating to life of plant contracts, opportunities in the shut-down nuclear reactor market and the Company's rule making petition to the NRC.

        On October 12, 2012, we and the plaintiffs in the Related Actions reached an agreement in principle to resolve all claims made by the plaintiffs in their complaint underlying the proceeding. The agreement does not contain an admission of guilt or other wrongdoing on the part of the Company, or our officers, directors or affiliates. The confidential settlement arrangement, the final terms of which is subject to customary court approvals, is not expected to have a material adverse effect on our financial position, results of operations or cash flows. The court signed an order preliminarily approving the settlement on December 3, 2012. A hearing for final approval of the settlement is scheduled for March 15, 2013.

Shareholder Derivative Actions

        On August 25, 2010, Sanjay Israni filed a shareholder derivative action in the U.S. District Court for the District of Utah alleging breach of fiduciary duty and related claims against EnergySolutions, Inc. as the nominal defendant and various of our current and prior directors and officers. The underlying facts alleged in the derivative complaint are substantively the same as those in the Related Actions. The defendants in this case filed a motion to dismiss on June 16, 2011. On July 20, 2011, the plaintiff filed a response to the motion to dismiss. On August 17, 2011, briefing on the motion by both parties was completed. To facilitate orderly management of all issues in all this and related litigation, the parties agreed to postpone hearings on the motion and the court has entered an order denying the motion without prejudice, permitting the motion to be renewed at any time.

        On October 8, 2010, Jack Fish filed a shareholder derivative action in the Supreme Court of New York, County of New York, alleging breach of fiduciary duty and related claims against EnergySolutions, Inc. as the nominal defendant, certain prior directors, ENV Holdings, LLC and Lindsay Goldberg & Bessemer, L.P. The underlying facts alleged in this derivative complaint are substantively the same as those in the Related Actions.

        On October 12, 2012, we and the plaintiffs in the Related Actions reached an agreement in principle to resolve all claims made by the plaintiffs in their complaint underlying that proceeding. The agreement will also resolve the shareholder derivative actions filed by Messrs. Israni (which was voluntarily dismissed on October 9, 2012) and Fish. The agreement does not contain an admission of guilt or other wrongdoing on the part of the Company, or our officers, directors or affiliates. The confidential settlement arrangement, the final terms of which is subject to customary court approvals, is not expected to have a material adverse effect on our financial position, results of operations or cash flows. Plaintiffs have requested that the court set a final hearing on the settlement for March 2013.

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Pennington et al. v. ZionSolutions, LLC, et al.

        On July 14, 2011, four individuals, each of whom are electric utility customers of Commonwealth Edison Company, the former owner of the Zion Station ("Com Ed"), filed a complaint in the U.S. District Court for the Northern District of Illinois, Eastern Division, against ZionSolutions and Bank of New York Mellon, the trustee of the Zion Station decommissioning trust ("NDT") fund.

        The plaintiffs claim that payments from the NDT fund to ZionSolutions for decommissioning the Zion Station are in violation of Illinois state law, Illinois state law entitles the utility customers of Com Ed to payments (or credits) of a portion of the NDT fund and that Bank of New York Mellon was inappropriately appointed by ZionSolutions as trustee of the NDT fund. The plaintiffs seek to enjoin and recover payments from the NDT fund to ZionSolutions, that payments (or credits) of a portion of the NDT fund be made to utility customers of Com Ed, the appointment of a new trustee over the NDT fund, an accounting from Bank of New York Mellon of all assets and expenditures from the NDT fund and costs and attorneys fees. The plaintiffs also seek class action certification for their claims. On September 13, 2011, the defendants filed a motion to dismiss the plaintiffs' claims. The motion has been fully briefed and submitted to the court for a decision. No decision has been rendered by the court.

Litigation Relating to the Merger with Energy Capital Partners

        Following the Company's January 7, 2013 announcement that it had entered into a Merger Agreement providing for the acquisition of the Company by Parent, an entity formed by Energy Capital Partners, ten purported class action lawsuits were brought against us, the members of our board of directors, Energy Capital Partners II, LLC, Parent and Merger Sub. Six lawsuits were filed in the Delaware Court of Chancery, captioned Printz v. Rogel, et al., C.A. No. 8302-VCG (Jan. 10, 2013); Bushansky v. EnergySolutions, Inc., et al., C.A. No. 8210 (Jan. 11, 2013); Danahare v. EnergySolutions, Inc., et al., C.A. No. 8219 (Jan. 15, 2013); Graham v. EnergySolutions, Inc., et al. (Jan. 15, 2013), and Lebron v. EnergySolutions, Inc., et al., C.A. No. 8223 (Jan. 15, 2013); Louisiana Municipal Police Employees' Retirement System v. EnergySolutions, Inc., et al., C.A. No. 8350 (Feb. 22, 2013), (the "Delaware actions"). On January 19, 2013, the Court of Chancery entered an order consolidating the Delaware actions as In re EnergySolutions, Inc. Shareholder Litigation, Consolidated C.A. No. 8203-VCG. On January 28, 2013, the Court of Chancery entered an Order of Class Certification and Case Management which, among other things, certified a non opt-out class of EnergySolutions stockholders consisting of all persons who held shares of stock of EnergySolutions (excluding defendants named in the Delaware actions and their immediate family members, any entity controlled by any of the defendants, and any successors in interest thereto) at any time during the period from and including January 7, 2013, through the date of consummation or termination of the Merger.

        On March 15, 2013, without admitting any wrongdoing and to avoid the burden, expense and disruption of continued litigation, EnergySolutions, Inc., the members of our board of directors, Energy Capital Partners II, LLC, Parent and Merger Sub entered into a memorandum of understanding with the plaintiffs in the Delaware actions providing for the settlement in principle of the claims brought by the plaintiffs in the Delaware actions. Pursuant to the memorandum of understanding, we included additional disclosures in our proxy statement requested by the plaintiffs in the Delaware actions. The parties to the Delaware actions are in the process of documenting the settlement and will present the settlement to the Delaware Court of Chancery for approval when that documentation is complete. In approving the settlement, the Delaware Court of Chancery may also require the Company to pay plaintiffs' attorney fees, the amount of which have not been determined.

        The other four lawsuits were filed in the Utah State District Court, Third Judicial District, Salt Lake County, and are titled Mohammed v. EnergySolutions, Inc., et al., No. 130400388 (Jan. 10, 2013);

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Luck v. EnergySolutions, Inc., et al. No. 130900256 (Jan. 11, 2013); Braiker v. EnergySolutions, Inc., et al., No. 130900573 (Jan. 25, 2013); and Temmler v. EnergySolutions, Inc., et al., No. 130900684 (Jan 31, 2013), (the "Utah actions"). On February 1, 2013, the Company and certain defendants filed a Motion to Dismiss or Stay, or in the Alternative for Extension of Time to Respond to Complaint in the Luck action, seeking to dismiss or stay the action in deference to the Delaware actions.

        Collectively, the Delaware actions and Utah actions generally allege that the individual defendants breached their fiduciary duties in connection with the Merger because the merger consideration is unfair, that certain other terms in the Merger Agreement are unfair, and that certain individual defendants are financially interested in the Merger. Some of the actions further allege that Energy Capital Partners, Parent and Merger Sub aided and abetted these alleged breaches of fiduciary duty. Among other remedies, the lawsuits seek to enjoin the Merger, or in the event that an injunction is not awarded, unspecified money damages, costs and attorneys' fees. We believe that each of the Delaware actions and Utah actions is without merit, and we intend to vigorously defend against all claims asserted to the extent not yet resolved.

        We believe the legal claims alleged against the Company in the complaints described above are without merit and we intend to vigorously defend these actions to the extent not yet resolved.

Item 4.    Mine Safety Disclosures.

        Not applicable.

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PART II

Item 5.    Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities.

Market information

        Our common stock began trading on the NYSE under the symbol "ES" on November 15, 2007. The following table sets forth the highest and lowest sales prices of our common stock as reported in the Consolidated Transactions Reporting System for each full quarterly period within the two most recent fiscal years:

        As of March 11, 2013, there were 85 record holders of our common stock. This does not include the number of persons who hold stock in nominee or "street name" accounts through brokers.

        We have not paid dividends since the third quarter of 2010. We determined that the capital previously allocated for the payment of common stock dividends would be better utilized for debt reduction and reinvesting in the business to support our internal growth and improve our ability to deliver financial results that will benefit all of our stockholders. Any future cash dividends to holders of our common stock will be at the discretion of our board of directors and will depend upon our results of operations, financial condition, liquidity requirements, restrictions that may be imposed by applicable law and our contracts and other factors deemed relevant by our board of directors.

        Dividend payments to shareholders, among other payments, are included under the definition of restricted payments in our senior secured credit facility. Our credit facility allows for restricted payments not to exceed $10.0 million during any period of four consecutive fiscal quarters and an additional basket for restricted payments not to exceed 30% of the cumulative available excess cash flow at any time, with such restricted payments permanently reducing the 30% basket.

Securities Authorized for Issuance under Equity Compensation Plans

        See Part III, Item 12 of this report for disclosure relating to our equity compensation plans. Such information will be included in our proxy statement for our 2013 annual meeting of stockholders (the "2013 Proxy Statement"), which is incorporated herein by reference, unless provided in an amendment to this Annual Report on Form 10-K.

Purchases of Equity Securities by the Issuer and Affiliated Purchasers

        None.

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Performance Graph

        The following graph compares the cumulative 5 year total return to shareholders of EnergySolutions, Inc.'s common stock with the cumulative total returns of the S&P Midcap 400 Index and the Dow Jones U.S. Heavy Construction Index and the S&P Smallcap 600 index. The graph tracks the performance of a $100 investment in our common stock and in each of the indexes (with the reinvestment of all dividends) from December 31, 2007 to December 31, 2012. The stock price performance included in the graph is not necessarily indicative of future stock price performance.

COMPARISON OF 5 YEAR CUMMULATIVE TOTAL RETURN*
Among EnergySolutions, Inc., the S&P Midcap 400 Index, the S&P Smallcap 600 index,
and the Dow Jones U.S. Heavy Construction Index

 

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Item 6.    Selected Financial Data

        The following table presents selected financial data for our business as of the dates and for the periods indicated. The financial data as of and for the periods presented was derived from the audited consolidated financial statements of EnergySolutions, Inc. The financial data as of December 31, 2010, 2009 and 2008 and for the years ended December 31, 2009 and 2008 have been derived from audited consolidated financial statements that are not included within this Annual Report on Form 10-K. The financial data as of December 31, 2012 and 2011 and for the years ended December 31, 2012, 2011 and 2010 have been derived from audited consolidated financial statements that are included within this Annual Report on Form 10-K. This selected financial data should be read in conjunction with Management's Discussion and Analysis of Financial Condition and Results of Operations in Item 7 of this Annual Report on Form 10-K which includes a discussion of factors that materially affect the

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comparability of the information presented and in conjunction with consolidated financial statements and related notes included in Item 15 of this Annual Report on Form 10-K.

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Item 7.    Management's Discussion and Analysis of Financial Condition and Results of Operation.

        The following discussion and analysis of the financial condition and results of our operations should be read together with the consolidated financial statements and the related notes of EnergySolutions included elsewhere in this Annual Report on Form 10-K. This discussion contains forward-looking statements, that are based on current expectations and related to future events and our future financial performance and that involve risks and uncertainties. Our actual results may differ materially from those anticipated in these forward-looking statements as a result of many factors, including those set forth under "Risk Factors."

Overview

        We are a leading provider of a broad range of nuclear services to government and commercial customers who rely on our expertise to address their needs throughout the lifecycle of their nuclear operations. Our broad range of nuclear services includes engineering, in-plant support services, spent nuclear fuel management, decontamination and decommissioning ("D&D") services, operation of nuclear reactors, logistics, transportation, processing and LLRW disposal. We derive almost 100% of our revenue from the provision of nuclear services.

        We provide our services through two customer groups: the Government Group and the Global Commercial Group. Within the Global Commercial Group, we provide services through three operating business divisions: Commercial Services, Logistics, Processing and Disposal ("LP&D") and International. Our Government Group provides services to United States ("U.S.") government customers for the management and operation ("M&O"), and/or clean-up of facilities with radioactive materials. Our Government Group customers are individual offices, departments and administrations within the U.S. Department of Energy ("DOE") and the U.S. Department of Defense ("DOD"). Our Commercial Services operations provide a broad range of on-site services, including D&D services and comprehensive long-term stewardship D&D work for shut-down nuclear power plants and similar operations, to commercial customers. Our commercial customers include power and utility companies, pharmaceutical companies, research laboratories, universities, industrial facilities, state agencies and other commercial entities that are involved with nuclear materials as well as state agencies in the U.S. Our LP&D operations provide a broad range of logistics, transportation, processing and disposal services to both government and commercial customers. Our LP&D division also operates our facilities for the processing and disposal of radioactive materials, including our facility in Clive, Utah, four facilities in Tennessee and two facilities in Barnwell, South Carolina. Our International division derives revenue primarily through contracts with the Nuclear Decommissioning Authority ("NDA") in the United Kingdom ("U.K.") to operate, manage and decommission ten Magnox sites with twenty-two nuclear reactors. In addition, our International division also provides turn-key services and sub-contract services for the treatment, processing, storage and disposal of radioactive waste from nuclear sites and non-nuclear facilities such as hospitals, research facilities and other manufacturing and industrial facilities.

        During the fourth quarter of 2012, we announced a restructuring of our company, including a reduction in force. This restructuring was the first step on the path to achieve our strategic objectives to reduce the costs of delivering our products and services, to strengthen our balance sheet and to grow our business. This restructuring is estimated to reduce our annual costs by approximately $35.0 million. We will reinvest part of the cost savings from this restructuring into strengthening our existing businesses as well as pursuing new growth opportunities. Greater efficiency is also expected to lead to greater cash flow and further reductions in our total debt.

        On January 7, 2013, we entered into an Agreement and Plan of Merger (the "Merger Agreement") with Rockwell Holdco, Inc., a Delaware corporation ("Parent"), and Rockwell Acquisition Corp., a Delaware corporation and a wholly owned subsidiary of Parent ("Merger Sub"). Parent and Merger Sub are affiliates of Energy Capital Partners II, LP and its parallel funds (together with its

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affiliates, "Energy Capital Partners"), a leading private equity firm focused on investing in North America's energy infrastructure. Pursuant to the Merger Agreement, the Merger Sub will merge with and into the Company (the "Merger") and we will become a wholly-owned subsidiary of Parent. The Merger will only be able to be consummated after our stockholders have adopted the Merger Agreement at a meeting of stockholders and following the satisfaction or waiver of a number of conditions set forth in the Merger Agreement. Upon consummation of the Merger, each outstanding share of the common stock other than shares of common stock held in the treasury of the Company or owned by Parent, any affiliates of Parent, Merger Sub, a subsidiary of the Company or by stockholders who have validly exercised their appraisal rights under Delaware law, will be converted into the right to receive cash in an amount equal to $3.75, without interest and subject to any required withholding of taxes.

        The obligation of Parent and Merger Sub to consummate the Merger is subject to the satisfaction or waiver of a number of conditions set forth in the Merger Agreement, including (i) the adoption of the Merger Agreement and approval of the transactions contemplated thereby by stockholders of the Company owning at least a majority of outstanding shares of the Company's common stock, (ii) the expiration or termination of any applicable waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the "HSR Act"), (iii) a notification from the Committee on Foreign Investment in the United States ("CFIUS") that it has determined not to investigate the transactions contemplated in the Merger Agreement, but only if the Company and Parent have elected to make a filing to CFIUS, (iv) the absence of any law or order preventing the consummation of the Merger, (v) the obtaining of certain regulatory approvals, including approval from the NRC and consent from the NDA, (vi) subject to certain exceptions, the accuracy of the Company's representations and warranties, (vii) the Company's compliance in all material respect with its obligations under the Merger Agreement and (viii) the absence of a material adverse effect on the Company.

        The early termination of the waiting period under the HSR Act was granted and became effective on February 1, 2013. The Company submitted the formal consent application to the NDA on January 21, 2013. The NDA, in a letter dated January 24, 2013, gave its consent to the change in control of EnergySolutions EU Limited in satisfaction of this aspect of the Merger Agreement. Also, the Company and Parent determined not to make a filing with CFIUS pursuant to the Defense Protection Act of 1950, based on their belief that no such filing is necessary with respect to the transactions contemplated by the Merger Agreement. The Company has submitted all required notices or applications requesting consent to the indirect transfer of control of the Company's NRC and State radiological licenses and permits from the NRC and the States of Connecticut, Ohio, South Carolina, Tennessee and Utah. The States of Ohio, South Carolina and Tennessee have issued all required consents regarding the several licenses from these states held by the Company. A required Notice has been provided to the State of Connecticut, and no further action is required by the State of Connecticut. However, further consents are still required from the NRC and the State of Utah.

        Following satisfaction or waiver of all the Merger Agreement's closing conditions, we expect to close the Merger during the second or third quarter of 2013. Following completion of the transaction, our common stock will be delisted from the NYSE and deregistered under the Securities Exchange Act of 1934, as amended (the "Exchange Act"). As such, we would no longer file periodic reports with the SEC, on account of our common stock, but we may be subject to certain continued reporting requirements with respect to our 10.75% Senior Notes due 2018. The Company will become a privately owned company and our stock will no longer trade on the NYSE.

        In connection with the entry into the Merger Agreement, on February 15, 2013, we entered into Amendment No. 2 to the senior secured credit facility and Consent and Waiver (the "Loan

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Amendment"), with the lenders party thereto and JP Morgan Chase Bank, N.A., as the administrative and collateral agent. The Loan Amendment contains the following terms and conditions:

1)

that the lenders and the administrative agent consent to i) the consummation of the Merger; ii) a waiver of the change of control provisions and certain other covenants and provisions under the senior secured credit facility, iii) a consent to any repayment of our 10.75% Senior Notes due 2018, provided that any payments are funded from equity contributions made to us by ECP or its affiliates; iv) an extension to the maturity date of our senior secured revolving credit facility, subject to certain conditions; and v) 1% prepayment premium if any senior secured term loans are refinanced prior to the date that is one year following the execution date of the Loan Amendment;



2)

that the definition of change of control and reporting requirements under the senior secured credit facility be amended;



3)

that upon the closing of the Merger, that the applicable margin for our senior secured term loan made pursuant to the senior secured credit facility be increased;



4)

that we will pay a consent fee to each lender that has entered into the Loan Amendment equal to (i) 0.5% of the sum of the outstanding term loans and revolving commitments of such lender on the execution date of the Loan Amendment and (ii) 0.5% of the sum of the outstanding term loans and revolving commitments of such lender on the closing date of the merger;



5)

that we reimburse the administrative agent for fees, charges and disbursements of counsel in connection with preparation of the Loan Amendment;



6)

that no later than 150 days after the closing of the Merger, that we reduce our debt with respect to our senior secured term loans under the amended senior secured credit facility and our 10.75% Senior Notes due 2018, after giving effect to the Merger, to $675 million or less; and



7)

that the Loan Amendment would take effect upon the consummation of the Merger.

        If the Merger Agreement is terminated, then pursuant to the Reimbursement Agreement we entered into with Parent and Merger Sub on February 15, 2013 in connection with the Loan Amendment, Parent will reimburse the Company for (i) certain fees, costs, expenses or disbursements, if and to the extent paid by or on behalf of the Company, payable in connection with the Loan Amendment and (ii) certain fees, costs, expenses or disbursements, if and to the extent paid by or on behalf of the Company, that would otherwise be payable by Parent under the Fee Letter dated January 7, 2013, by and between Morgan Stanley Senior Funding, Inc. and Parent, subject to offset in certain circumstances.

        The foregoing projections, expectations and estimates, together with all other forward-looking statements regarding the project, are based upon current assumptions and are subject to various risks and uncertainties. Our actual results may differ materially from those anticipated in these forward-looking statements.

        Our results of operations for year ended December 31, 2012 included a favorable asset retirement obligation ("ARO") cost estimate adjustment of $8.7 million for the Zion Station project and a $15.4 million non-recurring restructuring charges related to the reorganization of our operations in the U.S.

        Our results of operations for the year ended December 31, 2011 include an ARO charge of $94.9 million related to the Zion SACU, a $174.0 million non-cash charge for the impairment of goodwill and a $29.5 million non-cash charge for a valuation allowance recorded against certain of our deferred tax assets. Excluding these charges, income from operations in 2011 would have been $53.3 million, net

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income would have been $104.8 million and diluted net income attributable to EnergySolutions per share would have been $1.18.

        Our results of operations for year ended December 31, 2010 included a charge of $4.8 million for an ARO cost estimate change for the Zion Station project and a $35.0 million non-cash charge for the impairment of goodwill. Excluding these charges, income from operations in 2010 would have been $83.9 million, net income would have been $19.9 million and diluted net income attributable to EnergySolutions per share would have been $0.22.

        During the year ended December 31, 2011, as a result of the goodwill impairment charge and ARO cost estimate adjustment related to the Zion Station project, we recorded a valuation allowance against certain U.S. deferred tax assets. We provide valuation allowances against potential future benefits when, in the opinion of management, based on the weight of available evidence, it is more likely than not that some portion of the deferred tax assets will not be realized. A significant piece of evidence considered was our cumulative pre-tax loss position. While we were profitable during the year ended December 31, 2012, the profit was not significant enough to eliminate the three-year cumulative pre-tax loss position. An additional factor is that, while the year ended December 31, 2012 reflected consolidated profits, we had a pre-tax book loss in the U.S. that perpetuated the three-year cumulative pre-tax loss position for the U.S. As a result of this position, as well as uncertainties related to our assessment of future taxable income in various jurisdictions, we determined that it is necessary to maintain the valuation allowance against U.S. deferred tax assets and certain U.K. deferred tax assets. A decrease in valuation allowance of $0.1 million was recorded that includes an increase against foreign deferred tax assets of $1.3 million and a reduction against U.S. deferred tax assets of $1.4 million resulting from the current year change in net deferred tax assets.

        Also during 2012, the Company determined that it had a need to repatriate cash from certain foreign jurisdictions. Consequently, the Company changed its prior assertion regarding permanent reinvestment of foreign earnings for the related foreign entities. There was a dividend paid from U.K. operations to the U.S. of approximately $31.6 million and the Company will begin recording deferred taxes related to all future foreign income or loss for these entities.

Components of Revenue and Expenses

Revenue and Cost of Revenue

Government Group

        We generate revenue in our Government Group primarily from M&O and clean-up services on DOE and DOD sites that have radioactive materials. Under Tier 1 contracts, we typically provide services as an integrated member of a prime contract team. Under Tier 2 subcontracts, we provide services to Tier 1 contractors on a subcontracted basis. Tier 1 contracts often include an award fee in excess of incurred costs and may also include an incentive fee for meeting contractual targets, milestones, or performance factors.

        Historically, the majority of our Government Group revenue has been generated from either Tier 1 cost-reimbursable contracts with award (typically based on a percentage of cost) or incentive (typically success-based) fees, or Tier 2 subcontracts that are cost-reimbursable, fixed-price, unit-rate and time and material contracts. When we have provided services as an integrated member of a Tier 1 prime contract team, we have typically entered into contracts with the other members of the team in which we share the award or incentive fees under the customer contract. The revenue characteristics of these contracts are as follows:

•

Tier 1 Contract, Acting as Lead Prime Contractor.  In situations where we act as lead prime contractor in a fee-sharing arrangement, we submit invoices to the customer for recovery of costs incurred in providing project services and we also submit to the customer the cost-recovery

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invoices of the other team members that have been submitted to us. Depending on the nature of the contract, we typically recognize as revenue the entire amount of our fee and cost reimbursement as lead prime contractor and record an expense for the portion of the fee and cost reimbursement that we pay to the other team members in proportion to their respective percentages of the fee-sharing arrangement and costs. As a result, when we act as lead prime contractor, we recognize higher revenue and may realize higher gross profits but lower gross margins than when we do not act as lead prime contractor.

•

Tier 1 Contract, Not Acting as Lead Prime Contractor.  In situations where we do not act as lead prime contractor, we submit invoices to the lead prime contractor for recovery of costs incurred in providing project services, including allocated selling, general and administrative expenses, as allowed by the customer and we may receive a portion of the fee in direct proportion to our percentage of a fee sharing arrangement. We include in revenue the amount to be received as reimbursement for costs incurred plus the portion of the fee that we will receive. The majority of our Tier 1 contracts have historically fallen into this category.



•

Tier 2 Subcontract.  Tier 2 subcontracts are typically discrete, project-driven transactions procured by Tier 1 contractors. The majority of Tier 2 subcontracts are fixed-price or cost-reimbursable contracts. We generally do not participate in fee-share arrangements as a Tier 2 subcontractor.

        Revenue in our Government Group can fluctuate significantly from period to period because of differences in the timing and size of contract awards in any given period, whether or not we are required to consolidate an entity under a joint venture agreement and reflect its revenue within our financial statements, the completion or expiration of large contracts and delays in congressional appropriations for contracts we have been awarded.

        We typically generate revenue in our Government Group pursuant to long-term contracts. The process of bidding for government contracts is extremely competitive and time-consuming. Discussions relating to a potential government contract often begin one or two years before release of an RFP. An additional year or two years may pass between the government's announcement of an RFP and its award of a contract and an additional several months may pass before we begin to recognize revenue in connection with contracts we are awarded.

        Cost of revenue in our Government Group consists primarily of compensation and benefits to employees, outsourcing costs for subcontractor services, costs of goods purchased for use in projects and travel expenses.

Global Commercial Group

        Within the Global Commercial Group, we provide services through three operating business divisions: Commercial Services, LP&D and International.

Commercial Services Operations

        We generate revenue in our Commercial Services division through fixed-price, unit-rate and cost-reimbursable contracts with power and utility companies that operate nuclear power plants and, to a lesser extent, with pharmaceutical companies, research laboratories, universities, industrial facilities and other commercial entities that have nuclear-related operations.

        Revenue in our Commercial Services division can fluctuate significantly from period to period because of differences in customer requirements, which depend upon the operating schedules of nuclear reactors, emergency response operations and other clean-up events. The operating schedules of nuclear reactors are affected by, among other things, seasonality in the demand for electricity and reactor refueling and maintenance schedules. Power and utility companies typically schedule refueling and maintenance to coincide with periods of reduced power demand periods in the spring and fall.

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Therefore, our revenue is typically higher during these periods due to the increased demand for our on-site services. Our revenue also fluctuates from period to period as our commercial power and utility customers start or terminate project operations. Revenue from emergency response operations and other clean-up activities may also cause fluctuations in our results due to the unanticipated nature of events that result in these projects.

        Revenue in our Commercial Services division also depends on the decisions of our customers to incur expenditures for third-party nuclear services. For example, they may choose to store radioactive materials on site, rather than transporting materials for commercial processing and disposal at third party facilities, such as our Clive, Utah facility. Similarly, customers may defer entering into contracts for D&D services at nuclear plants that have been shut down until such time as they have additional dedicated funds to perform that work.

        Cost of revenue in our Commercial Services division consists primarily of compensation and benefits to employees, outsourcing costs for subcontractor services, costs of goods purchased for use in projects and travel expenses. Cost of revenue also includes the accretion expense related to our Zion ARO, Zion ARO settlement gains or losses as work is performed on the Zion Station decommissioning project and any changes in cost estimates related to the Zion ARO.

LP&D Operations

        We generate revenue in our LP&D division primarily through unit-rate contracts for the transportation, processing and disposal of radioactive materials. In general, the unit-rate contracts entered into by our LP&D division use a standardized set of purchase order-type contracts containing standard pricing and other terms. By using standardized contracts, we are able to expedite individual project contract negotiations with our customers through means other than formal bidding processes. For example, our life-of-plant contracts provide nuclear power and utility company customers with Class A LLRW and MLLW processing and disposal services for the remaining lives of their nuclear power plants, as well as D&D waste disposal services after those plants are shut down. These contracts generally provide that we will process and dispose of substantially all of the Class A LLRW and MLLW generated by those plants for a fixed, pre-negotiated price per cubic foot, depending on the type of radioactive material being disposed and often include periodic price adjustments. Although life-of-plant contracts may be terminated before decommissioning work is complete, we typically expect the duration of these contracts to be in excess of ten years.

        Revenue in our LP&D division can fluctuate significantly depending on the timing of our customers' decommissioning activities. We can receive high volumes of radioactive materials in a relatively short time period when a customer's site or facility is being decommissioned.

        Cost of revenue in our LP&D division consists primarily of compensation and benefit expenses of employees, outsourcing costs for subcontractor services, such as rail transportation of radioactive materials from a customer's site to one of our facilities for processing and disposal, costs of goods purchased for use in our facilities, licenses, permits, taxes on processed radioactive materials, maintenance of facilities, equipment costs and depreciation costs. Most of our fixed assets are in our LP&D division and we recognize the majority of our depreciation costs in this division.

International Operations

        We generate revenue in our International division primarily through Tier 1 contracts with the NDA. As a Tier 1 contractor, we are reimbursed for allowable incurred costs. In addition, we receive a range of cost efficiency fees (a percentage of budgeted costs minus actual costs for work performed) and project delivery-based incentive fees. We typically recognize as revenue the full amount of reimbursed allowable costs incurred plus the amount of fees earned and we record as expense the

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amount of our operating costs incurred, including all labor, benefits, travel expenses and the costs of our subcontractors.

        We recognize fees as revenue only when the amount to be received is fixed or determinable. Our contracts with the NDA allow for a portion of the fees we receive to be paid monthly on account during the year. The total amount paid on account at the year-end cannot exceed a combined 60% of the total base incentive fee available and 80% of the efficiency fee earned. For the first six months of the contract year, which ends on March 31, we receive monthly account payments of fees equivalent to 5% of the total available fees for the contract year, although the monthly amount of the base incentive fee may be increased to reflect actual fees earned in the period if mutually agreed. The contract requires a joint performance review with the NDA at the end of the sixth month and ninth month periods of the contract year. The purpose of the review is to establish a forecast of fees expected to be earned in the year, against which future scheduled monthly fee payments are assessed and potentially adjusted, to ensure that the total fees paid on account by the end of the contract year will not exceed the contractual limits. In July, following the end of the contract year, we expect to finalize any earned but unpaid incentive and efficiency fees due from the NDA and to receive a corresponding final fee payment.

        Our contracts with the NDA are based on an annual funding cycle and incentive plan. Consequently, revenue can vary from year to year depending on the level of annual funding, the nature of performance-based incentives negotiated and efficiency fee mechanisms in place.

        Cost of revenue in our International division consists primarily of compensation and benefits to employees, travel expenses, outsourcing costs for subcontractor services and costs of goods purchased for use in projects.

Selling, General and Administrative Expenses

        Selling, general and administrative ("SG&A") expenses include expenses that are not directly associated with performing nuclear services for our customers. These expenses consist primarily of compensation and related benefits for management and administrative personnel, expenses associated with preparing contract bids, office expenses, advisory fees, professional fees, strategic growth initiatives such as research and development and administrative overhead.

        We segregate our SG&A expenses into two categories for reporting purposes. Group SG&A expenses reflect costs specifically associated with each of our business groups, such as costs for segment leadership compensation and expenses, specific business development activities and other costs associated with a specific segment. Corporate SG&A expenses reflect costs associated with supporting the entire Company including executive management and administrative functions such as accounting, treasury, legal, human resources and information technology and other costs required to support the Company's operations.

Interest Expense

        Interest expense includes both cash and accrued interest expense, the amortization of deferred financing costs, debt commitment fees, debt discounts and interest paid on outstanding letters of credit.

Other Income, Net

        Other income, (expense) net includes realized and unrealized gains and losses from investments classified as trading securities, interest income, mark-to-market gains and losses on our derivative contracts and transactional foreign currency gains and losses. It also includes non-operating or infrequent charges triggered by unusual events.

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Outlook

        We expect the following factors to affect our results of operations in future periods. In addition to these factors, please refer to the factors described in the subsection entitled "Risk Factors" under Part I, Item 1A of this Annual Report on Form 10-K for additional information on what could cause our actual results to differ from our expectations.

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Revenue may be impacted by foreign currency fluctuations.  During the year ended December 31, 2012, revenue from our International segment was 68.5% of our total consolidated revenue. Most of the revenue in our International segment is derived from contracts with the NDA in the U.K., which are denominated in pound sterling. Over the past three months, the pound sterling has held its value at an average exchange rate of 1.606.



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Equity-based compensation expense.  We account for equity-based compensation payments, including grants to employees, based on the fair values of the equity instruments issued. As of December 31, 2012, we had outstanding options to purchase an aggregate of 2.5 million shares of common stock, of which 1.1 million were unvested, and we had 1.3 million unvested restricted shares of our common stock outstanding. We recognized compensation expense of $4.1 million, $10.0 million and $10.3 million, in 2012, 2011 and 2010, respectively, and expect to record compensation expense of $4.8 million in 2013 as a result of these outstanding unvested options and unvested restricted shares.



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Phantom stock compensation expense.  We recorded compensation expense related to our phantom stock grants of $3.0 million and $0.3 million for the years ended December 31, 2012 and 2011, respectively. As of December 31, 2012, we had approximately $9.1 million of unrecognized compensation expense related to outstanding phantom stock awards which will be recognized over a weighted average period of 1.9 years. Phantom stock provides a cash or stock bonus based on the value of a stated number of shares to be paid out at the end of a specified period of time. The value of the phantom shares is dependent on the stock price on the vesting date; therefore, a market condition exists. The value of phantom stock awards to be paid in cash are treated as liability awards. Therefore, those phantom stock awards are revalued at each reporting period.



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Capital expenditures.  We had capital expenditures of approximately $20.3 million in 2012 related primarily to the purchase of transportation equipment and rail containers for our operations at our disposal facilities. We had capital expenditures of $23.7 million and $17.0 million in 2011 and 2010, respectively. We anticipate that capital expenditures in 2013 will range from approximately $20.0 million to $30.0 million related mostly to purchases of equipment and property improvements at our facilities.



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Amortization costs related to intangible assets.  We expect non-cash amortization costs to remain constant in 2013, provided we do not acquire any significant businesses or intangible assets and foreign exchange rates remain constant. We incurred approximately $25.9 million of non-cash amortization expense in 2012 and $26.0 million of non-cash amortization expense in 2011, related primarily to the intangible assets acquired in 2005, 2006 and 2007. We expect to incur $25.8 million of non-cash amortization expense in 2013.



•

Interest Expense.  Borrowings under the senior secured credit facility bear interest at a rate equal to adjusted LIBOR plus 4.50% (with a LIBOR floor of 1.75%), or ABR plus 3.50%. Based on our outlook for interest rates and our expectations regarding LIBOR fluctuations, we expect our interest expense associated with our senior secured credit facility to increase less than 1% during 2013 from our interest expense of $33.6 million in 2012. Borrowings under our senior notes bear interest at a 10.75% fixed rate. We incurred approximately $32.3 million of interest expense related to our senior notes in 2012 and we expect to incur approximately the same amount

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during 2013. Non-cash amortization expense of deferred financing costs and debt discounts was $5.0 million in 2012 and we anticipate acceleration in the amortization of these costs during 2013 as a result of debt principal payments. We expect to incur approximately $10.0 million of additional debt financing costs and commitment fees during 2013 in connection with amendments to our senior secured credit facility.

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Income taxes.  Our effective tax rate in 2012 was 81.9% resulting from tax expense for certain entities in the U.K. and taxes on the Zion nuclear decommissioning trust ("NDT") fund earnings with no offsetting benefit for losses in the U.S. and certain other entities in the U.K. due to the valuation allowance positions. The amount of income tax expense was reduced by lower tax rates in foreign jurisdictions, a lower statutory rate at the NDT fund level, and research and development credits in the U.K. These reductions were offset by NDT fund realized earnings that were taxed at both the corporate and trust levels. During 2012, we recorded a net decrease in the valuation allowance resulting from an increase against certain foreign deferred tax assets and a decrease against U.S. deferred tax assets. No benefit for a 2012 research and development credit in the U.S. has been included due to the expiration of the statute. That statute has since been reinstated retroactively and the benefit for the 2012 and 2013 credits will be included in the first quarter of 2013. We anticipate our effective tax rate for 2013, exclusive of any unusual items, will be approximately 33% to 40%.

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Results of Operations

        The following is a summary of our results of operations (in thousands):

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Year Ended December 31, 2012 Compared to Year Ended December 31, 2011

Government Group

        Revenue and cost of revenue in our Government Group decreased $79.0 million and $71.8 million, respectively, for the year ended December 31, 2012, compared to the year ended December 31, 2011, primarily as a result of the completion of certain large contracts with the DOE, decreased ARRA funding during 2012 and the reversal of $5.6 million incentive fee recorded in March 2012 related to the Salt Waste project. As a result, gross profit decreased by $7.2 million while gross margin increased to 11.0% for the year, compared to 10.4% for the prior year. The increase in gross margin was due primarily to the commencement of new, more profitable projects during 2012.

        Revenue and cost of revenue related to our engineered systems and technology products division increased $15.9 million and $10.5 million, respectively, for the year compared to the prior year, due primarily to increased testing activities on a large scale mixing contract awarded in August 2011 as well as continued high level waste gas development testing for the Washington State Office of River Protection. As a result, gross profit increased $5.4 million for the year compared to the prior year.

        Revenue and cost of revenue from our subsidiary EnergySolutions Performance Strategies, decreased $5.9 million and $7.8 million, respectively, for the year compared to the prior year due primarily to completion of the remediation activities at the Portsmouth Gaseous Diffusion Plant in Piketon, Ohio during March 2011. As a result, gross profit increased $1.9 million for the year compared to the prior year.

        Revenue and cost of revenue from activities performed on our Navy related projects increased $3.1 million and $2.1 million, respectively, for the year compared to the prior year, due primarily to the award of the Newport News shipyard decommissioning contract during 2012. As a result, gross profit increased $1.0 million for the year compared to the prior year.

        Revenue and cost of revenue from our Isotek Systems subsidiary decreased $2.6 million and $3.6 million for the year compared to the prior year, due to the completion of heavy engineering design activity work during the first quarter of 2011. Gross profit increased $1.0 million for the year compared to the prior year due primarily to higher fees recognized for the year as a result of timing of fee recognition, higher fee rates and cost reduction efforts.

        Revenue and cost of revenue from our Salt Waste Processing Facility contract decreased $9.7 million and $0.7 million, respectively, for the year compared to the prior year, due primarily to a $5.6 million reversal of incentive fee recorded in March 2012 resulting from expected costs to complete the contract exceeding the original total budgeted costs. As a result, gross profit decreased $9.0 million for the year compared to the prior year. The prime subcontractor on our Salt waste project, located at

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the Savannah River site, has informed the DOE of an estimated cost increase on the construction phase. The change in the budgeted project costs also reduced the potential incentive fee pool, which resulted in a corresponding reduction in the amount of incentive fee we had previously recognized. Such fee had been based on previously estimated costs and the estimated progress to date on the construction phase.

        Revenue and cost of revenue generated by our contract with the DOE to clean up the Atlas mill tailings site near Moab, Utah decreased $50.4 million and $45.6 million, respectively, for the year compared to the prior year due to the completion of the contract during April 2012. As a result, gross profit decreased $4.8 million for the year compared to the prior year.

        Revenue and cost of revenue related to our UCOR liquids and gases staff augmentation project decreased $9.0 million and $7.7 million, respectively, for the year compared to the prior year due to the completion of the contract during the second quarter of 2012. As a result, gross profit decreased $1.3 million for the year compared to the prior year.

        Revenue and cost of revenue from our Uranium Disposition Services, LLC joint venture decreased $23.7 million and $22.9 million, respectively, for the year compared to the prior year, due to the completion of the hot functional test phase in the first quarter of 2011. As a result, gross profit decreased $0.8 million for the year compared to the prior year.

        Revenue and cost of revenue from supporting activities performed on the East Tennessee Technology Park closure plan increased $8.1 million and $8.3 million, respectively, for the year compared to the prior year, due primarily to commencement of on-site D&D activities during September 2011 which continued through all of 2012. As a result, gross profit decreased $0.2 million for the year compared to the prior year.

Global Commercial Group

Commercial Services Operations

        Revenue and cost of revenue from our Commercial Services operations decreased $18.2 million and $123.0 million, respectively, for the year ended December 31, 2012 compared to the year ended December 31, 2011, primarily due to lower revenues and project costs incurred during 2012 related to our decommissioning work at the Zion Station nuclear power plant and the $94.9 million cost adjustment recognized in 2011 related to the SACU review for that project, for which no corresponding revenue was recognized during 2011. As a result, gross profit increased $104.8 million for the year compared to the prior year, and gross margin increased to 14.2% compared to a negative 39.4% for the prior year. During 2012, the Global Commercial Group reduced its work force by approximately 150 employees which is expected to generate future costs savings.

        Revenue and cost of revenue related to the decommissioning of the Zion Station decreased $15.3 million and $117.7 million, respectively, for the year compared to the prior year primarily due to a delay in spending, lower subcontractor costs and lower accretion expense. The decrease in cost of revenue also included an $8.7 million favorable ARO cost estimate adjustment resulting from changes in the timing of some activities as well as a change in the cost escalation factor compared to a $94.9 million unfavorable ARO cost estimate adjustment recorded during the prior year. Gross profit for the Zion Station project increased $102.4 million in 2012 compared to the prior year. Excluding the effects of ARO cost estimate adjustments in 2011 and 2012, gross profit for the Zion Station project decreased $1.4 million for the year compared to the prior year due to the lower revenue. Work during the period focused on spent fuel activities, including equipment procurement and ISFSI Construction, as well as D&D activities, including reactor vessel internals segmentation, asbestos removal and disposal and various other D&D tasks.

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        Revenue and cost of revenue from our Technology Products division increased $2.8 million and $1.5 million, respectively, for the year compared to the prior year, primarily from increased demand for liners and engineered liquid waste processing equipment during the year. As a result, gross profit increased $1.3 million for the year compared to the prior year.

        Revenue and cost of revenue from our Project Services Delivery division decreased $5.4 million and $6.4 million, respectively, for the year compared to the prior year due primarily to the completion of work at Pearl Harbor and at GE's Hitachi's global nuclear fuel plant in Wilmington, North Carolina, during the fourth quarter of 2011. As a result, gross profit increased $1.0 million for the year compared to the prior year.

LP&D Operations

        Revenue and cost of revenue from our LP&D operations decreased $24.3 million and $7.1 million, respectively, for the year ended December 31, 2012, compared to the year ended December 31, 2011, due primarily to lower waste disposal volumes processed at our Clive, Utah, facility offset by increased waste processing activities and increased transportation services. As a result, gross profit decreased by $17.2 million and gross margin decreased to 26.4% for the year, compared to 30.8% for the prior year. During 2012, the LP&D division reduced its work force by approximately 120 employees which is expected to generate future costs savings.

        Revenue and cost of revenue from our processing facilities increased $8.1 million and $2.7 million, respectively, for the year compared to the prior year, due primarily to increased fabrication of fuel pool inserts, increased fuel pool waste processing activities and the recognition of fees related to processing of materials on a large scale contract. As a result, gross profit increased $5.4 million for the year compared to the prior year.

        Revenue and cost of revenue related to our logistics operations increased $4.1 million and $3.0 million, respectively, for the year compared to the prior year, due to higher utility shipments, increased cask rental and delivery as well as lower labor support, container cost and facility maintenance. As a result, gross profit increased $1.1 million for the year compared to the prior year.

        Revenue and cost of revenue related to our disposal facilities decreased $36.5 million and $12.7 million, respectively, for the year compared to the prior year primarily due to lower volumes of waste receipts on DOE projects due in part to a decrease in ARRA funding during 2012 and decreased decommissioning activities during the year. As a result, gross profit decreased $23.8 million for the year compared to the prior year.

International Operations

        Revenue and cost of revenue from our International operations increased $113.5 million and $102.8 million, respectively, for the year ended December 31, 2012, compared to the year ended December 31, 2011, primarily due to increased reimbursable contract cost base on our Magnox contract and fees earned on our China, Japan and Korea contracts. As a result, gross profit increased $10.7 million and gross margin increased to 5.5% for the year ended December 31, 2012 from 5.1% for the year ended December 31, 2011.

        Revenue and cost of revenue from our operations in Asia increased $70.5 million and $59.1 million, respectively, for the year compared to the prior year, due to increased progress related to fabrication and installation activities at the Yangjiang and Haiyang, China nuclear reactor sites and to the completion of design activities for the clean-up operations in Fukushima, Japan as well as the provision of media filters, containers and support in Japan. As a result, gross profit increased $11.4 million for the year compared to the prior year.

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        Revenue and cost of revenue from our operations at the Magnox sites in the U.K. increased $38.4 million and $39.9 million, respectively, for the year compared to the prior year, due primarily to a contribution received from the NDA to fund a deficit of the Magnox pension plan, as well as better than expected progress during 2012. Revenue was negatively impacted by $12.5 million while cost of revenue was positively impacted by $12.1 million as a result of fluctuations in pound sterling exchange rates period over period. As a result, gross profit decreased $1.5 million for the year compared to the prior year.

        Revenue and cost of revenue from our operations in Canada increased $4.5 million and $3.6 million, respectively, for the year compared to the prior year, primarily due to increased shipments of waste for processing and higher demand for waste storage services. As a result, gross profit increased $0.9 million for the year compared to the prior year.

Group selling, general and administrative expenses

        Group SG&A expenses include expenses that are not directly associated with performing services for our customers. These expenses consist primarily of compensation and related benefits for management and administrative personnel, expenses associated with preparing contract bids, office expenses, advisory fees, professional fees and strategic growth initiatives such as research and development and for administrative overhead. Group SG&A expenses decreased $8.4 million, or 13.2%, from $63.6 million for the year ended December 31, 2012 compared to the prior year, due primarily to lower incentive compensation expense and our ongoing effort to reduce SG&A expenses including reductions in overall workforce.

Corporate selling, general and administrative expenses

        Corporate SG&A expenses reflect costs associated with supporting the entire Company, including executive management and administrative functions such as accounting, treasury, legal, human resources and information technology, as well as other costs required to support the Company. Corporate SG&A expenses increased $14.3 million, or 20.8%, to $83.1 million for the year ended December 31, 2012 from $68.8 million for the year ended December 31, 2011. This increase was due primarily to reorganization and transitional costs resulting from the execution of our restructuring plan during the year that involved the reduction of approximately 265 employees across all of the Company's divisions. The increase was partially offset by decreased incentive compensation expense.

Equity in income of unconsolidated joint ventures

        Income from unconsolidated joint ventures decreased $3.7 million, or 33.4%, to $7.4 million for the year ended December 31, 2012 from $11.1 million for the year ended December 31, 2011. The decrease was attributable primarily to a $1.7 million decrease in our proportional share of income from our LATA/Parallax Portsmouth, LLC joint venture and a $2.0 million decrease from our proportional share of income from our Washington River Protection Solutions LLC joint venture.

Interest expense

        Interest expense decreased $2.2 million, or 3.0%, to $71.2 million for the year ended December 31, 2012 from $73.4 million for the year ended December 31, 2011. The decrease was due primarily to a decrease in our average outstanding borrowings for the year resulting from $30.2 million in voluntary principal debt payments made during the last quarter of 2011. The variable annual interest rate on our term loan was 6.25% as of both December 31, 2012 and December 31, 2011, while our senior notes bear interest at a fixed annual rate of 10.75%.

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Other income (expense), net

        Other income, net decreased $5.0 million to $53.2 million for the year ended December 31, 2012 compared with other income, net of $58.2 million for the year ended December 31, 2011, due primarily to a $5.5 million increase in investment income earned on our investments in the NDT fund, net of trust management fees, for the year, offset by a $2.4 million donation of an engineering research facility to Washington State University and the accrual of $5.0 million related to pending settlements on certain legal matters. In addition, during 2011, the U.S. Treasury refunded $3.1 million in interest earned on our federal income tax returns for the years 2004 and 2005.

Income taxes

        For the year ended December 31, 2012 we recognized income tax expense of $18.0 million on our consolidated financial results based on an annual effective tax rate of 81.9%. For the year ended December 31, 2011 we recognized an income tax benefit of $37.1 million on our consolidated financial results based on an annual effective tax rate of 15.9%. During 2012, we recorded tax expense primarily as a result of tax expense for certain entities in the U.K. and on the Zion NDT fund realized earnings with no offsetting benefit for losses in the U.S. and certain other entities in the U.K. due to the valuation allowance positions for these entities. The amount of income tax expense was reduced by lower tax rates in foreign jurisdictions, a lower statutory rate at the NDT fund level, and research and development credits in the U.K. These reductions were offset by NDT fund earnings that were taxed at both the corporate and trust levels.

        No benefit for a 2012 research and development credit in the U.S. has been included due to the expiration of the statute. That statute has since been reinstated retroactively and the benefit for the 2012 and 2013 credits will be included in the first quarter of 2013. Also during 2012, the Company determined that it had a need to repatriate cash from certain foreign jurisdictions. Consequently, the Company changed its prior assertion regarding permanent reinvestment of foreign earnings for the related foreign entities. There was a dividend paid from U.K. operations to the U.S. of approximately $31.6 million and the Company will begin recording deferred taxes related to all future foreign income or loss for these entities.

        During the year ended December 31, 2011, as a result of the goodwill impairment charge and the ARO cost estimate adjustment related to the Zion Station project, we recorded a valuation allowance against certain U.S. deferred tax assets. We provide valuation allowances against potential future benefits when, in the opinion of management, based on the weight of available evidence, it is more likely than not that some portion of the deferred tax assets will not be realized. A significant piece of evidence considered was our cumulative pre-tax loss position. While we were profitable during the year ended December 31, 2012, the profit was not significant enough to eliminate the three-year cumulative pre-tax loss position. An additional factor is that, while the year ended December 31, 2012 reflected consolidated profits; we had a pre-tax book loss in the U.S. that perpetuated the three-year cumulative pre-tax loss position for the U.S. As a result of this position, as well as uncertainties related to our assessment of future taxable income in various jurisdictions, we determined that it is necessary to maintain the valuation allowance against U.S. deferred tax assets and certain UK deferred tax assets. A decrease in valuation allowance of $0.1 million was recorded that includes an increase against foreign deferred tax assets of $1.3 million and a reduction against U.S. deferred tax assets of $1.4 million resulting from the current year change in net deferred tax assets.

        During the year ended December 31, 2012, we recognized adjustments to unrecognized tax benefits of $0.2 million, primarily related to various tax positions in the U.K.

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Year Ended December 31, 2011 Compared to Year Ended December 31, 2010

Government Group

        Revenue and cost of revenue in our Government Group decreased $100.6 million and $93.8 million, respectively, for the year ended December 31, 2011, compared to the year ended December 31, 2010, primarily as a result of the completion of certain large contracts with the DOE and to decreased ARRA funding during 2011. As a result, gross profit decreased by $6.8 million while gross margin increased to 10.4% for the year, compared to 9.3% for the prior year. The increase in gross margin was due primarily to the commencement of new, more profitable projects during 2011. The end of ARRA funding and an overall reduction of federal government spending could negatively affect the financial results of our Government Group in future years. In 2011, as part of our ongoing cost reduction efforts and initiatives, the Government Group reduced its work force by approximately 20 employees which is expected to generate future costs savings.

        Revenue and cost of revenue from operations in the Southwest region increased $5.0 million and $3.8 million, respectively, for the year compared to the prior year, due primarily to additional work scope on existing projects and the award of a new contract during the second quarter of 2011 that is now in full operation. As a result, gross profit increased $1.2 million for the year compared to the prior year.

        Revenue and cost of revenue from supporting activities performed on the East Tennessee Technology Park closure plan increased $4.5 million and $4.0 million, respectively, for the year compared to the prior year, due primarily to commencement of on-site D&D activities during September 2011. As a result, gross profit increased $0.5 million for the year compared to the prior year.

        Revenue and cost of revenue from our Salt Waste Processing facility contract increased $1.4 million and $0.5 million, respectively, for the year compared to the prior year, due primarily to increased construction activities during 2011 resulting from additional funding from the DOE. As a result, gross profit increased $0.9 million for the year compared to the prior year.

        Revenue and cost of revenue from our Isotek Systems joint venture decreased $9.5 million and $11.1 million for the year compared to the prior year, due to the completion of heavy engineering design activity work during the first quarter of 2011. Gross profit increased $1.6 million for the year compared to the prior year due primarily to higher fees recognized for the year as a result of timing of fee recognitions, higher fee rates and cost reduction efforts. This joint venture became a wholly owned subsidiary of EnergySolutions in December 2011.

        Revenue and cost of revenue from our Uranium Disposition Services, LLC joint venture decreased $50.2 million and $49.0 million, respectively, for the year compared to the prior year, due to the completion of the operational readiness review phase in November of 2010 and the hot functional test phase in the first quarter of 2011. As a result, gross profit decreased $1.2 million for the year compared to the prior year.

        Revenue and cost of revenue generated by our contract with the DOE to clean up the Atlas mill tailings site near Moab, Utah decreased $21.1 million and $19.2 million, respectively, for the year compared to the prior year due to decreased construction activities and lower shipments of waste for disposal during the year resulting from a reduction of ARRA spending which ended in July of 2011. As a result, gross profit decreased $1.9 million for the year compared to the prior year.

        Revenue and cost of revenue from our subsidiary EnergySolutions Performance Strategies, decreased $15.8 million and $11.7 million, respectively, for the year compared to the prior year due primarily to completion of the remediation activities at the Portsmouth Gaseous Diffusion Plant in

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Piketon, Ohio during March 2011. As a result, gross profit decreased $4.1 million for the year compared to the prior year.

        Revenue and cost of revenue from our environmental remediation and waste management activities at the DOE Paducah Gaseous Diffusion Plant in Paducah, Kentucky decreased $8.0 million and $6.6 million, respectively, for the year compared to the prior year, due to completion of the contract in July 2010. As a result, gross profit decreased $1.4 million for the year compared to the prior year.

        Revenue and cost of revenue related to engineering and technology support services to the Government Group decreased $5.9 million and $6.3 million respectively, for the year compared to the prior year primarily due to completion of technical and testing support activities to the DOE Waste Treatment Plant in the Richland and DOE Hanford sites during 2010. Gross profit increased $0.4 million for the year compared to the prior year, primarily due to new vitrification projects awarded during 2011.

Global Commercial Group

Commercial Services Operations

        Revenue and cost of revenue from our Commercial Services operations increased $79.6 million and $166.2 million, respectively, for the year ended December 31, 2011 compared to the year ended December 31, 2010, primarily due to the ramp up of our decommissioning work at the Zion Station nuclear power plant. The disproportional increase in cost of revenue when compared to revenue resulted from the recording of an ARO cost adjustment in the amount of $94.9 million related to the Zion Station project, for which no corresponding revenue was recognized. As a result, gross profit decreased $86.6 million for the year compared to the prior year and gross margin decreased to a negative 39.4% for the year compared to 6.4% for the prior year. During 2011, the Global Commercial Group reduced its work force by approximately 60 employees which is expected to generate future costs savings.

        Revenue and cost of revenue related to the decommissioning of the Zion Station increased $93.6 million and $173.3 million, respectively, for the year compared to the prior year primarily due to having only four months of activity in 2010 compared to one full year of activity in 2011. In addition, the Company performed its first schedule and cost update review of the Zion Station project during 2011 and identified certain cost items that are estimated to be higher than the original project estimates. As a result, we recorded a $94.9 million ARO cost adjustment to the current cost estimates during 2011. Excluding the effect of the ARO cost adjustment, gross profit for the Zion Station project increased $15.7 million for the year compared to the prior year, after considering the impact of accretion expense and ARO settlement gain.

        Revenue and cost of revenue from our commercial products division increased $5.4 million and $4.2 million, respectively, for the year compared to the prior year, primarily from increased demand for liners and engineered equipment and increased engineering design and fabrication activities during the year. As a result, gross profit increased $1.2 million for the year compared to the prior year.

        Revenue and cost of revenue from our commercial utility projects division decreased $0.4 million and increased $4.8 million, respectively, for the year compared to the prior year, due primarily to the substantial completion of work on three large-scale utility projects during 2010. The disproportional increase in cost of revenue when compared to revenue year over year resulted from schedule delays, subcontractor equipment failures and costs overruns on two major fixed price contracts. As a result, gross profit decreased $5.2 million for the year compared to the prior year.

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        Revenue and cost of revenue from our commercial decommissioning services projects decreased $8.5 million and $8.3 million, respectively, for the year compared to the prior year due primarily to the completion of the Federated Metals project during 2010, which was partially offset by a slight increase in revenue from our operations at Pearl Harbor, Hawaii. As a result, gross profit decreased $0.2 million for the year compared to the prior year.

        Revenue and cost of revenue from our liquid waste processing division decreased $3.1million and $1.8 million, respectively, for the year compared to the prior year, due primarily to the completion of certain large projects during 2010 while there were fewer large scale projects to replace them in 2011. As a result, gross profit decreased $1.3 million for the year compared to the prior year.

        Revenue and cost of revenue from our commercial technology and engineering operations decreased $7.6 million and $6.0 million, respectively, for the year compared to the prior year, due primarily to the completion of a key engineering study of a nuclear fuel fabrication plant during 2010, whereas no project of this magnitude took place in 2011. As a result, gross profit decreased $1.6 million for the year compared to the prior year.

LP&D Operations

        Revenue from our LP&D operations decreased $20.3 million to $247.1 million for the year ended December 31, 2011, compared to the year ended December 31, 2010, due primarily to lower receipts of waste from DOE contracts, decreased shipments of depleted uranium tubes and decreased rail transportation services provided during the year, which was partially offset by increased incineration activities at our Bear Creek facility. Gross profit decreased by $22.4 million and gross margin decreased to 30.7% for the year from 36.8% in the prior year, due primarily to increases in labor and subcontractor costs.

        Revenue related to our disposal facilities decreased $19.9 million for the year compared to the prior year, due primarily to lower volumes of waste receipts on DOE projects due in part to a decrease in ARRA funding during 2011 and decreased decommissioning activities during the year. Cost of revenue increased $1.4 million, due primarily to higher costs associated with mixed waste processing at our Clive, Utah facility. As a result, gross profit decreased $21.3 million for the year compared to the prior year.

        Revenue and cost of revenue from our processing facilities increased $6.9 million and $6.6 million, respectively, for the year compared to the prior year, due primarily to increased receipts of materials for incineration during 2011 at our Bear Creek, Tennessee facility and to increased equipment decontamination activities at our Memphis, Tennessee facility which resulted in higher processing labor costs and accretion costs. These increases were partially offset by lower shipments of depleted uranium tubes during 2011. As a result, gross profit increased $0.3 million for the year compared to the prior year.

        Revenue and cost of revenue related to our logistics operations decreased $7.4 million and $6.0 million, respectively, for the year compared to the prior year, due to decreased shipping activity on major DOE funded contracts. As a result, gross profit decreased $1.4 million for the year compared to the prior year.

International Operations

        Revenue from our International operations increased $104.8 million, or 10.3%, for the year ended December 31, 2011 compared to the same period in 2010, due primarily to increased design and construction activities in our operations in Asia and to increased D&D work performed at certain Magnox sites. Gross profit decreased $3.5 million and gross margin decreased to 5.1% for the year ended December 31, 2011 from 6.0% for the year ended December 31, 2010, primarily as a result of

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the timing in the recognition of generation, efficiency and cost savings fees related to our operations in the U.K., and to fewer project based incentive fees awarded by the NDA during the current year.

        Revenue and cost of revenue from our operations at the Magnox sites in the U.K. increased $51.3 million and $60.9 million, respectively, for the year compared to the prior year, due primarily to acceleration of decommissioning work at the Bradwell and Trawsfynydd sites. Revenue and cost of revenue also increased $35.4 million and $33.4 million, respectively, as a result of fluctuations in pound sterling exchange rates year over year. Gross profit decreased $9.6 million for the year compared to the prior year, primarily due to fewer project based incentive fees available during 2011.

        Revenue and cost of revenue from our operations in Asia increased $16.7 million and $13.0 million, respectively, for the year compared to the prior year, due to ramp up of design and construction operations at the Yangjiang and Haiyang, China nuclear reactor sites during 2011 and to increased project costs. As a result, gross profit increased $3.7 million for the year compared to the prior year.

Group selling, general and administrative expenses

        Group SG&A expenses include expenses that are not directly associated with performing services for our customers. These expenses consist primarily of compensation and related benefits for management and administrative personnel, expenses associated with preparing contract bids, office expenses, advisory fees, professional fees, strategic growth initiatives such as research and development and for administrative overhead. Group SG&A expenses increased $7.2 million or 12.9% from $56.4 million for the year ended December 31, 2011 compared to the prior year, due primarily to higher incentive compensation expense and higher bid and proposal costs incurred during 2011 as compared to the same period in 2010.

Corporate selling, general and administrative expenses

        Corporate SG&A expenses decreased $8.0 million, or 10.5%, to $68.8 million for the year ended December 31, 2011 from $76.8 million for the year ended December 31, 2010. This decrease was due primarily to ongoing SG&A expense reduction efforts and initiatives, to decreased spending on separation agreements of former employees, to a favorable settlement related to a business tax examination completed during 2011 and to decreased legal expenses.

Equity in income of unconsolidated joint ventures

        Income from unconsolidated joint ventures decreased $2.0 million, or 15.4%, to $11.1 million for the year ended December 31, 2011 from $13.1 million for the year ended December 31, 2010. The decrease was attributable primarily to a $2.3 million decrease in our proportional share of income from our LATA/Parallax Portsmouth, LLC joint venture due to the completion of the contract during the first quarter of 2011, and to a $0.8 million decrease in our proportional share of income from our Washington River Protection Solutions LLC joint venture, which were partially offset by a $0.7 million increase in our share of income from TPMC EnergySolutions Environmental Services LLC, and to a $0.4 million increase in our share of income in West Valley Environmental Services LLC.

Interest expense

        Interest expense increased $1.9 million, or 2.7%, to $73.4 million for the year ended December 31, 2011 from $71.5 million for the year ended December 31, 2010. The increase was primarily attributable to additional interest expense accrued as a result of increased outstanding borrowings and higher interest rates on outstanding borrowings for the year compared to prior year. Included in interest expense for the year ended December 31, 2010, is approximately $19.1 million of deferred financing fees written off in conjunction with the refinancing of our long-term debt in August 2010. In August

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2010, we also issued $300.0 million of senior notes at a fixed annual interest rate of 10.75% which did not exist prior to that date. Borrowings under our current senior secured credit facility bear interest at a variable annual interest rate of 6.25% as of December 31, 2011, compared to a variable annual interest rate of 4.01% as of December 31, 2010, under our former credit facilities.

Other income (expense), net

        Other income (expense), net increased $20.5 million to other income, net of $57.2 million for the year ended December 31, 2011 compared with other income, net of $36.7 million for the year ended December 31, 2010, due primarily to a $22.9 million increase in investment income earned on our investments in the NDT fund, net of trust management fees, for the year and to a $3.1 million increase in other income related to interest earned on our federal income tax returns for the years 2004 and 2005 refunded to the Company during the year. Those increases were offset by a $1.6 million decrease in unrealized gains in the fair value of our interest rate collar, which was terminated in January 2011 and to a $0.6 decrease in other miscellaneous expenses.

Income taxes

        For the year ended December 31, 2011 we recognized an income tax benefit of $37.1 million from our consolidated financial results based on an annual effective tax rate of 15.9%. For the year ended December 31, 2010 we recognized income tax expense of $29.2 million on our consolidated operations based on an annual effective rate of 405.4%. During 2011, we recorded a tax benefit primarily as a result of having pretax book losses, lower income tax rates in foreign jurisdictions and a lower statutory rate at the NDT trust level, the recognition of uncertain tax positions in the U.S., and the use of certain research and development tax credits in both the U.S. and the U.K. These benefits were offset by additional tax expense resulting from NDT fund earnings being taxed at both the trust and corporate levels, the addback of a portion of the goodwill impairment that is not deductible for tax purposes and a valuation allowance recorded against certain domestic and foreign deferred tax assets.

        During the year ended December 31, 2011, we recognized adjustments to unrecognized tax benefits of $0.1 million, primarily related to various tax positions in the U.K. During 2011, the Internal Revenue Service finished its examination of the consolidated U.S. tax returns for the short tax period from November 16, 2007 through December 31, 2007 and the tax year ended December 31, 2008. There were no material adjustments to the amount of taxes previously recorded as a result of those exams; therefore the Company was able to reverse $5.7 million of uncertain tax positions reserves. The Company is not currently being audited by federal taxing authorities but the timing of future tax examinations is highly uncertain. However we do not anticipate any significant impacts to our unrecognized tax benefits balance within the next 12 months.

Liquidity and Capital Resources

        We finance our operations primarily through cash provided by operations. Our cash flow from operations are primarily impacted by fluctuations in working capital caused by the timing of our billings to customers, collection terms of our contracts, stages of completion of our projects, execution of projects within their planned budgets, the timing of payments to vendors and subcontractors, the timing of payment of dividends from our unconsolidated joint ventures, the changes in income tax assets and liabilities and unforeseen events. Additionally, certain projects receive advance payments from customers. A normal trend for these projects is to have higher cash balances during the initial phases of execution which then level out toward the end of the construction phase. As a result, our cash position is reduced as work is performed against customer advances, unless they are replaced by advances on other projects.

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        Our cash flow from operations for the year ended December 31, 2012, has been sufficient to cover our operating expenses without the need to draw on our senior secured revolving credit facility to cover any shortfalls in the timing of receipts and payments. We are actively engaged in managing our working capital to generate cash that will allow us to accelerate our plans to reduce debt and to fund the growth of our business.

        For the year ended December 31, 2012, our principal sources of liquidity consisted of $134.2 million in existing cash and cash equivalents, of which $29.1 million was held in foreign jurisdictions and $32.0 million of availability under the $105.0 million revolving portion of our senior secured credit facility, which is net of $73.0 million of outstanding letters of credit issued against it. Due to U.S. tax laws and foreign regulations, our ability to use our cash held in foreign jurisdictions to fund U.S. operations is limited.

        As of December 31, 2012, we also had $259.9 million in accounts receivable and $99.0 million in costs and estimated earnings in excess of billings on uncompleted contracts to fund our operations. We review the collectability of these balances on a regular basis and determine if allowances for doubtful accounts are needed. As of December 31, 2012 our allowance for doubtful accounts represented 0.5% of the combined total of these accounts. We also monitor our Days Sales Outstanding ("DSO") periodically and use it as a metric of performance of our credit and collection function. We use DSO to monitor the average time, in days, that it takes us to convert our accounts receivable into cash. We calculate DSO by dividing the average accounts receivable for the year into the amount of revenue recognized during the year and multiplying the result of that calculation by the number of days in that year. Our average DSO decreased from 60 days as of December 31, 2011 to 57 days as of December 31, 2012.

        For the year ended December 31, 2012, our primary use of cash was to fund our working capital and capital expenditures, to service our debt and to pay taxes. For the year ended December 31, 2011, our primary use of cash was to fund our working capital and capital expenditures, to service our debt and to fund distributions to the noncontrolling interests in our consolidated subsidiaries. As of December 31, 2012 and 2011, approximately $310.6 million and $310.3 million, respectively, of the borrowings under the senior secured credit facility were held in a restricted cash account as collateral for the Company's reimbursement obligations with respect to letters of credit.

        Certain trends or uncertainties could have a material impact on our liquidity. For example, if interest rates increase substantially, that could dramatically increase our cash interest expense; if we are required to increase our bonding requirements on current or future projects it could materially impact our available liquidity under the senior secured revolving credit facility; if the economy suddenly weakens or governments materially reduce future funding for nuclear remediation or D&D projects, these events could have a negative effect on our liquidity. Under certain terms and conditions we have the ability, absent an event of default, to increase our senior secured credit facility by up to $150.0 million. We do not anticipate the need to access this incremental commitment in our senior secured credit facility. Furthermore, we have the ability to hedge interest rate and foreign currency fluctuations and we actively monitor these markets in order to mitigate our exposure to these risks. Our principal needs for liquidity have been, and will continue to be, for working capital, to pay down debt, and for capital expenditures.

        Our liquidity is also affected by external factors such as credit ratings. A downgrade in our credit ratings limits our ability to access credit at reasonable cost which can negatively impact our working capital availability. As a result of the decrease in the earnings guidance and changes in management during the latter part of the second quarter 2012, rating agencies subsequently downgraded our credit ratings.

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        The following table summarizes the credit ratings of our debt as of December 31, 2012:

        Our credit ratings are influenced by many factors including our operating and financial performance, asset quality, liquidity, asset and liability management, the current level of financial operating leverage, capital structure and management business strategy, among others. Our credit ratings are currently on watch for a potential upgrade contingent upon the successful closing of the Merger Agreement.

        On September 1, 2010, as part of the closing of the Zion Station transaction, the Company took over ownership of a dedicated NDT fund, which exists for the sole purpose of decommissioning the Zion Station nuclear power plant. To that extent, the funds available in the NDT fund are also considered a source of working capital for those operations. We expect that we will be reimbursed from the NDT fund for the work we perform to decommission the plant. However, in the event that we do not comply with the contractual requirements included in the agreements with Exelon, we may become subject to additional financial restrictions. These additional financial restrictions may take the form of not being able to bill the NDT fund for work performed, funding the work on the project through our other cash flows, increasing the letter of credit amount established for this project, or having the letter of credit drawn down by Exelon. We had net cash outlays of $158.4 million, $161.5 million and $30.2 million during 2012, 2011, and 2010, respectively, to fund the project execution activities related to this contract.

        We had accumulated benefit obligations related to pension plans of $3.8 billion as of December 31, 2012. See Note 19 to our audited consolidated financial statements included elsewhere in this Annual Report on Form 10-K for a more detailed discussion. Approximately 98% of that obligation relates to the Magnox pension plan. The Magnox pension plan is funded by contributions from employees and the NDA pursuant to a contractual arrangement. As a result, we are reimbursed for contributions made to the Magnox pension plan under the terms of these contracts. Thus, we have no potential net funding requirements relative to the accumulated benefit obligation of the Magnox pension plan. Our liquidity is not affected by these contributions as they are only made when we have received the funds from the NDA. We are required to fund the pension plan for our employees of EnergySolutions EU Limited, a wholly owned subsidiary of EnergySolutions, Inc. The plan is currently funded by contributions from us and the employees.

        We believe we have sufficient resources to fund our operating and capital expenditures requirements, to pay our income taxes and to service our debt for at least the next twelve months.

Historical Cash Flows

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Cash flows from operating activities

        Cash flows from operating activities for the year ended December 31, 2012, compared to the year ended December 31, 2011, decreased due primarily to the significant increase in working capital. Working capital increased $5.5 million due primarily to the timing of payments to vendors and subcontractors, the use of advance payments from customers as projects moved towards completion. The decrease in cash flows from operating activities was partially offset by timing of collections from customers on accounts receivable and progress payments on costs and estimated earnings in excess of billings on uncompleted contracts resulting completion of major milestones on certain performance based contracts.

        Cash flows from operating activities decreased in 2011 due primarily to a decline in income from operations and the use of operating cash to fund project costs in excess of the projects' available cash balances. During 2011, working capital also decreased $9.4 million primarily due to increases in accounts payable and accrued expenses and other current liabilities offset by increases in accounts receivable and costs and estimated earnings in excess of billings on uncompleted contracts, all resulting from normal execution of project activities and taming of payments and collections and not indicative of any significant liquidity issue.

        Cash flows used in operating activities increased in 2010 due primarily to advance payments received from customers increased billings partially offset by decreases in accounts payable due primarily due to the timing of payments to vendors of Magnox Contracts in the U.K. During 2010, working capital increased $33.4 million primarily due to increases in the accounts receivable balance due to the timing in collection of funds from customers and increases in accrued expenses and other current liabilities resulting from normal execution of project activities.

Cash flows from investing activities

        Cash outflows from investing activities for the years ended December 31, 2012, 2011 and 2010 included purchases, sales and maturities of marketable securities, capital expenditures and disposals of property, plant and equipment. Investing activities in 2011 included $2.5 million related to the acquisition of the noncontrolling interest of our Isotek Systems LLC consolidated joint venture.

        We hold investments in marketable debt and equity securities through a NDT fund. We actively invest in a variety of financial instruments to provide our target returns on the NDT fund assets which are used to satisfy current and future decommissioning costs associated with the Zion Station ARO. For the years ended December 31, 2012, 2011 and 2010, proceeds from sales of investments in the NDT fund exceeded purchases by $3.9 million, $4.5 million and $0.1 million, respectively. These excess proceeds were used to pay for trustee and trust management fees.

        Capital expenditures of $20.3 million, $23.7 million and $17.0 million for the years ended December 31, 2012, 2011 and 2010, respectively, primarily related to the purchases of transportation equipment to support our operations in our disposal facilities, facility improvements, office buildouts, purchase of machinery and equipment required for the Atlas mill tailings contract, as well as investment in information technology. During 2010, we also invested in capitalizable implementation costs related to our enterprise resource planning system. Proceeds from disposal of property, plant and equipment of $5.3 million in 2012 primarily related to the disposition of assets related to the cleanup of the Atlas mill tailings site near Moab, Utah, which was completed in April 2012.

        We anticipate the sources of funds for our anticipated capital expenditures will come from cash flows provided by our operating activities or through capital lease arrangements.

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Cash flows from financing activities

        Net cash inflows from our financing activities for the year ended December 31, 2012 resulted from the issuance of common stock to an executive pursuant to his employment arrangement, offset by repayments of capital lease obligations and repurchases of our common stock to pay for taxes due upon the vesting of restricted stock awards.

        Net cash outflows from our financing activities for the year ended December 31, 2011 resulted from re-payments of long term debt of $30.2 million and payment of capital lease obligations of $0.7 million. We also made distributions of income to our noncontrolling interest partners of $4.2 million during the year.

        Net cash outflows from our financing activities for the year ended December 31, 2010 resulted from proceeds received from the issuance of $296.0 million senior notes due 2018 and $546.0 million from a term loan issued under our senior secured credit facility, both net of underwriting discounts and debt issuance costs. These inflows were offset by the retirement of long term debt, repayment of long term debt under the senior secured credit facility, cash collateralization of letters of credit, payment of stockholder dividends and realized losses on the settlement of our interest rate derivative contract.

Senior Secured Credit Facility and Senior Notes

        On August 13, 2010, the Company entered into a senior secured credit facility with JPMorgan Chase Bank, N.A., as the administrative agent and collateral agent, consisting of a senior secured term loan in an aggregate principal amount of $560 million at a discount rate of 2.5% and a senior secured revolving credit facility with availability of $105.0 million, of which $73.0 million was used to fund letters of credit issued as of December 31, 2012. Borrowings under the senior secured credit facility bear interest at a rate equal to: (a) Adjusted LIBOR plus 4.50% (subject to a LIBOR floor of 1.75%), or ABR plus 3.50% in the case of the senior secured term loan; (b) Adjusted LIBOR plus 4.50% (subject to a LIBOR floor of 1.75%), or ABR plus 3.50% in the case of the senior secured revolving credit facility, and (c) a per annum fee equal to the spread over Adjusted LIBOR under the senior secured revolving credit facility, along with a fronting fee and issuance and administration fees in the case of revolving letters of credit. The proceeds of the senior secured credit facility were used to repay outstanding indebtedness under former credit agreements, collateralize reimbursement obligations to the deposit issuing banks with respect to deposit letters of credit, replace synthetic letters of credit issued under former credit agreements and provide credit support for obligations acquired under the agreements with Exelon. As of December 31, 2012 and 2011, borrowings of $310.6 million and $310.3 million, respectively, under the senior secured term loan were held in a restricted cash account as collateral for the Company's reimbursement obligations with respect to letters of credit.

        The senior secured term loan amortizes in equal quarterly installments of $1.3 million payable on the last day of each calendar quarter with the balance being payable on August 13, 2016. In addition to the scheduled repayments, we are required to prepay borrowings under the senior secured credit facility with (1) 100% of the net cash proceeds received from non-ordinary course asset sales or other dispositions, or as a result of a casualty or condemnation, subject to reinvestment provisions and other customary adjustments, (2) 100% of the net proceeds received from the issuance of debt obligations other than certain permitted debt obligations, (3) 50% of excess cash flow (as defined in the senior secured credit facility), if the leverage ratio is equal to or greater than 3.0 to 1.0, or 25% of excess cash flow if the leverage ratio is less than 3.0 to 1.0 but greater than 1.0 to 1.0, reduced by the aggregate amount of optional prepayments of the senior secured term loan made during the applicable fiscal year. If the leverage ratio is equal to or less than 1.0 to 1.0, we are not required to prepay the senior secured term loan. The excess cash flow calculations (as defined in the senior secured credit facility), are prepared annually as of the last day of each fiscal year. Prepayments of debt resulting from the excess

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cash flow calculations are due annually five days after the date that the Annual Report on Form 10-K for such fiscal year is filed with the SEC.

        As of December 31, 2012, we had a $16.6 million mandatory principal repayment based on our excess cash flow and no scheduled quarterly repayments due within the next 12 months. We made no principal debt payments during 2012. For the year ended December 31, 2011 we made principal repayments totaling $30.2 million of which $26.0 were optional. Each optional prepayment is applied first, in direct order of maturities, to the next four scheduled principal repayment installments of the senior secured term loan and second, to the other principal repayment installments of senior secured term loans on a pro rata basis. For the year ended December 31, 2010 we made principal repayments totaling $2.8 million.

        For the years ended December 31, 2012, 2011 and 2010, we made cash interest payments of $71.5 million, $73.9 million and $29.9 million, respectively, related to our current and former credit facilities as well as the senior notes. In addition, during the year ended December 31, 2010, we paid fees of approximately $23.2 million to our lenders to obtain the new senior secured credit facility and to issue the senior notes, which are being amortized over the remaining term of the senior secured credit facility and the senior notes. We also wrote off $19.1 million of deferred financing fees related to our previous debt in 2010.

        The senior secured credit facility requires the Company to maintain a leverage ratio (based upon the ratio of indebtedness for money borrowed to consolidated adjusted EBITDA, as defined in the senior secured credit facility) and an interest coverage ratio (based upon the ratio of consolidated adjusted EBITDA to consolidated cash interest expense), both of which are calculated quarterly. Failure to comply with these financial ratio covenants would result in an event of default under the senior secured credit facility and, absent a waiver or an amendment from the lenders, preclude us from making further borrowings under the senior secured credit facility and permit the lenders to accelerate repayment of all outstanding borrowings under the senior secured credit facility. Based on the formulas set forth in the senior secured credit facility, we are required to maintain a maximum total leverage ratio of 4.25 for the quarter ending December 31, 2012, which is reduced by 0.25 on an annual basis through the maturity date. We are required to maintain a minimum cash interest coverage ratio of 2.0 from the quarter ended December 31, 2012 through the quarter ended September 30, 2014 and 2.25 through the maturity date. As of December 31, 2012, our total leverage and cash interest coverage ratios were 3.0 and 2.62, respectively.

        The senior secured credit facility also contains a number of affirmative and restrictive covenants including limitations on mergers, consolidations and dissolutions, sales of assets, investments and acquisitions, indebtedness, liens, affiliate transactions and dividends and restricted payments. Under the senior secured credit facility, we are permitted maximum annual capital expenditures of $40.0 million for 2012 and each year thereafter, plus for each year the lesser of (1) a one year carryforward of the unused amount from the previous fiscal year and (2) 50% of the amount permitted for capital expenditures in the previous fiscal year. The senior secured credit facility contains events of default for non-payment of principal and interest when due, a cross-default provision with respect to other indebtedness having an aggregate principal amount of at least $5.0 million and an event of default that would be triggered by a change of control, as defined in the senior secured credit facility. Capital expenditures for the year ended December 31, 2012 were $20.3 million. As of December 31, 2012, we were in compliance with all of the covenants under our senior secured credit facility.

        The obligations under the senior secured credit facility are secured by a lien on substantially all of the assets of the Company and each of the Company's domestic subsidiary guarantors, including a pledge of equity interests with the exception of the equity interests in our ZionSolutions subsidiary and other special purpose subsidiaries, whose organizational documentation prohibits or limits such pledge.

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        On August 13, 2010, we also completed a private offering of $300.0 million 10.75% senior notes at a discount rate of 1.3%. The senior notes are governed by an Indenture among EnergySolutions and Wells Fargo Bank, National Association, as trustee. Interest on the senior notes is payable semiannually in arrears on February 15 and August 15 of each year beginning on February 15, 2011. The senior notes rank in equal right of payment to all existing and future senior debt and senior in right of payment to all future subordinated debt. In May 2011, we filed a registration statement under the Securities Act, pursuant to a registration rights agreement entered into in connection with the senior notes offering. The SEC declared the registration statement relating to the exchange offer effective on May 27, 2011, and the exchange of the registered senior notes for the unregistered senior notes was consummated on May 31, 2011. We did not receive any proceeds from the exchange offer transaction.

        At any time prior to August 15, 2014, we are entitled to redeem all or a portion of the senior notes at a redemption price equal to 100% of the principal amount of the senior notes plus an applicable make-whole premium, as of, and accrued and unpaid interest to, the redemption date. In addition, prior to August 15, 2013, we may redeem up to 35% of the aggregate principal amount of the senior notes with the net cash proceeds from certain public equity offerings at a redemption price of 110.75% of the principal amount, plus accrued and unpaid interest to the date of redemption. In addition, on or after August 15, 2014, we may redeem all or a portion of the senior notes at the following redemption prices during the 12-month period commencing on August 15 of the years set forth below, plus accrued and unpaid interest to the redemption date.

        The senior notes are guaranteed on a senior unsecured basis by all of our domestic restricted subsidiaries that guarantee the senior secured credit facility. The senior notes and related guarantees are effectively subordinated to our secured obligations, including the senior secured credit facility and related guarantees, to the extent of the value of assets securing such debt. The senior notes are structurally subordinated to all liabilities of each of our subsidiaries that do not guarantee the senior notes. If a change of control of the Company occurs, each holder will have the right to require that we purchase all or a portion of such holder's senior notes at a purchase price of 101% of the principal amount, plus accrued and unpaid interest to the date of the purchase. The Indenture contains, among other things, certain covenants limiting our ability and the ability of one restricted subsidiary to incur or guarantee additional indebtedness, pay dividends or make other restricted payments, make certain investments, create or incur liens, sell assets and subsidiary stock, transfer all or substantially all of our assets, or enter into a merger or consolidation transactions and enter into transactions with affiliates.

        See "Management's Discussion and Analysis of Financial Condition and Results of Operations—Overview" of this report for more information on amendments to our senior secured credit facility.

Exelon Agreement

        In September 2010, we entered into an arrangement, through our subsidiary ZionSolutions with Exelon to dismantle the Zion Station nuclear power plant which ceased operation in 1998. Upon closing, Exelon transferred to ZionSolutions substantially all of the assets (other than land) associated with Zion Station, including all assets held in its nuclear decommissioning trusts. In consideration for Exelon's transfer of those assets, ZionSolutions agreed to assume decommissioning and other liabilities associated with Zion Station. ZionSolutions also took possession and control of the land associated with Zion Station pursuant to a lease agreement executed at the closing. ZionSolutions is under contract to complete the required decommissioning work according to an established schedule and to construct a

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dry cask storage facility on the land for the spent nuclear fuel currently held in spent fuel pools at the Zion Station. Exelon retains ownership of the land and the spent nuclear fuel and associated operational responsibilities following completion of the Zion Station D&D project. The NRC approved the transfer of the facility operating licenses and conforming license amendments from Exelon to ZionSolutions.

        To satisfy the conditions of the NRC order approving the License Transfer, we (i) secured a $200.0 million letter of credit facility, (ii) granted an irrevocable easement of disposal capacity of 7.5 million cubic feet at our Clive disposal facility and (iii) purchased the insurance coverages required of a licensee under the NRC's regulations.

        We provided a guarantee as primary obligor to the full and prompt payment and performance by ZionSolutions of all its obligations under the various agreements with Exelon. These guarantees would deplete Company assets before the $200.0 million letter of credit (described below) would fund remaining D&D activities. We also pledged 100% of our interests in ZionSolutions to Exelon. In addition, we were required to obtain a $200.0 million letter of credit facility to further support the D&D activities at the Zion Station, which would be held in a backup trust. If the Company exhausts its resources and ability to complete the D&D activities and in the event of a material default (as defined within the Credit Support Agreement), Exelon may exercise its rights to take possession of ZionSolutions. At that point, through their ownership of ZionSolutions, Exelon (not the Company) would then be entitled to control the funds associated with the letter of credit, through control of the backup trust. Under the terms of the Company's financing arrangements, the Company obtained restricted cash and took on a liability for the letter of credit facility.

Contractual Obligations and Other Commitments

        As of December 31, 2012, our contractual obligations and other commitments were as follows (in thousands):

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Off Balance Sheet Arrangements

        We have a number of routine operating leases, primarily related to real estate, equipment for project contracts, rail equipment and investments in joint ventures at December 31, 2012.

        As of December 31, 2012, we had an outstanding variable rate term loan of $527.0 million. Under our senior secured credit facility, we are required to maintain one or more hedge agreements bearing interest at a fixed rate in the aggregate notional amount of no less than 50% of the outstanding principal amounts of our long term debt. Since the outstanding balances under our senior notes bear interest at a fixed rate of 10.75% and totaled $300.0 million as of December 31, 2012, which is 58.1% of our outstanding term loan net of $310.6 million in restricted cash collateralizing deposit letters of credit, we were not required to enter into new hedge agreements.

        From time to time, we are required to post standby letters of credit and surety bonds to support contractual obligations to customers, self-insurance programs, closure and post-closure financial assurance, as well as other obligations. As of December 31, 2012, we had $307.1 million in deposit letters of credit issued under our senior secured credit facility and $73.0 million of letters of credit issued against our senior secured revolving credit facility. As of December 31, 2012, we had $27.5 million in surety bonds outstanding. With respect to the surety bonds, we have entered into certain indemnification agreements with the providers of the surety bonds, which would require funding by us only if we fail to perform under the contracts being insured and the surety bond issuer was obligated to make payment to the insured parties.

        Our processing and disposal facilities operate under licenses and permits that require financial assurance for closure and post-closure costs. We provide for these requirements through a combination of restricted cash, cash deposits, letters of credit and insurance policies. As of December 31, 2012, the closure and post-closure requirements for our facilities were $151.5 million.

Critical Accounting Policies

        This management's discussion and analysis of financial condition and results of operations is based upon our consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the U.S. The preparation of these financial statements requires us to make estimates and assumptions about matters that are uncertain. These estimates and assumptions are often based on judgments that we believe to be reasonable under the circumstances, but all such estimates and assumptions are inherently uncertain and unpredictable. Actual results may differ from those estimates and assumptions and it is possible that other professionals, applying their own judgment to the same facts and circumstances, could develop and support alternative estimates and assumptions that would result in material changes to our operating results and financial condition.

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        Critical accounting policies are those that are both important to the presentation of our financial condition and results of operations and require management's most difficult, complex or subjective estimates and assumptions. Our critical accounting policies are discussed below.

Accounting for the Exelon Transaction

        In December 2007, we entered into certain agreements with Exelon to dismantle the Zion Station, including a planning contract under which we were engaged to perform certain preparatory services, with payment contingent upon closing of an asset sale agreement. Although we entered into this contract in December 2007, we postponed the closing of the transaction due to the financial crisis affecting the stock markets at the time and as a result all costs associated with the execution of the planning phase were also deferred. The transaction closed on September 1, 2010. After closing, we recognized the costs and the related revenue associated with the planning contract in our consolidated statements of operations and comprehensive income (loss), with $5.1 million in revenue representing the related gross profit amount being deferred over the period of D&D work.

        On the date of the closing of the asset sale agreement, the NDT fund investments of approximately $801.4 million previously held by Exelon for the purpose of decommissioning the Zion Station nuclear power plant were transferred to us and the use of those funds and any investments returns arising therein, remains restricted solely to that purpose. As part of this transaction, we have assumed Exelon's cost basis in the investments, for tax purposes, which included an unrealized gain of approximately $171.7 million at the closing date which resulted in a deferred tax liability of approximately $34.3 million. The investments are classified as trading securities and as such, the investment gains and losses are recorded in the statement of operations and comprehensive income (loss) as Other Income or Expense. To the extent that the NDT fund assets exceed the costs to perform the D&D work, we have a contractual obligation to return any excess funds to Exelon. Throughout the period over which we perform the D&D work, we will assess whether such a contingent liability exists using the measurement thresholds under ASC 450-20.

        As the NDT fund assets that were transferred to us represent a prepayment of fees to perform the D&D work, we also recorded deferred revenue, including deferred revenue associated with the planning contract, of $772.2 million. Revenue recognition throughout the life of the project is based on the proportional performance method using a cost-to-cost approach.

        In conjunction with the acquisition of the shut down nuclear power plant, we became responsible for and assumed the ARO for the plant and we established and initially measured an ARO in accordance with ASC 410-20. Subsequent measurement of the ARO will follow ASC 410-20 accounting guidance, including the recognition of accretion expense, reassessment of the remaining liability using our estimated costs to complete the D&D work plus a profit margin and recognition of the ARO gain as the obligation is settled. Accretion expense and the ARO gain will be recorded within cost of revenue because, through this arrangement, we are providing D&D services to a customer. Any change to the ARO as a result of cost estimate changes will also be recorded to cost of revenue in the consolidated statements of operations and comprehensive income (loss) in the period identified. We also recorded deferred costs to reflect the costs incurred to acquire the future revenue stream. The deferred cost balance was initially recorded at $767.1 million, which is the same value as the initial ARO and will be amortized into cost of revenue in the same manner as deferred revenue, using the proportional performance method.

Revenue Recognition

        We record revenue when all of the following conditions exist:

•

evidence of an agreement with our customer;

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•

work has actually been performed;



•

the amount of revenue is fixed or determinable; and



•

collection from our customer is reasonably assured.

Federal, Commercial and International Contracts

        Our services are provided under cost-reimbursable plus award or incentive fee, fixed-price and unit-rate contracts. The following describes our policies for these contract types:

•

Cost-reimbursable contracts—We are reimbursed for allowable costs in accordance with Federal Acquisition Regulations ("FAR"), Cost Accounting Standards ("CAS") or contractual provisions. If our costs exceed the contract ceiling or are not allowable under the provisions of the contract, FAR, or CAS, we may not be able to obtain reimbursement for such costs. A contract may also provide for award fees or incentive fees in addition to cost reimbursements. Incentive fees are earned if we meet certain contract provisions, including schedule, budget and safety. Monthly assessments are made to measure the amount of revenue earned in accordance with established contract provisions. Award and incentive fees are accrued when estimable and collection is reasonably assured.



•

Fixed-price contracts—We receive a fixed amount of revenue irrespective of the actual costs we incur. For fixed-price contracts, our revenue are recognized using the proportional performance method of accounting using appropriate output measures, where estimable, or on other measures such as proportion of costs incurred to total estimated contract costs.



•

Unit-rate contracts—For unit-rate contracts, our revenue are recognized using the proportional performance method of accounting as units are completed based on contractual unit rates.

        Accounting for revenue earned under our contracts may require assessments that include an estimate of the amount that has been earned on the contract and are usually based on the volumes that have been processed or disposed, milestones reached or the time that has elapsed under the contract. Each of our contracts is unique with regard to scope, schedule and delivery methodology. Accordingly, each contract is reviewed to determine the most reliable measure of completion for revenue recognition purposes. Input measures such as costs incurred to total contract costs are used only when there are no quantifiable output measures available and represent a reasonable basis for determining the relative status of the project given that, on many contracts, costs are the basis for determining the overall contract value and timing.

        Certain of our fixed-price contracts are for services that are non-linear in nature, require complex, non-repetitive tasks or involve a non-time-based scope of work. In these contracts, the earnings process is not fulfilled upon the achievement of milestones, but rather over the life of the contract. Evaluation of the obligations and customer requirements on these contracts does not produce objective, quantifiable output measures that reflect the earnings process for revenue recognition. Therefore, in these situations, we use a cost-to-cost approach to determine revenue.

        A cost-to-cost approach accurately reflects our obligations and performance on these contracts, as well as meeting our customers' expectations of service being performed. Therefore, we believe that input measures used to measure progress toward completion on certain fixed-price projects provide a reasonable surrogate as compared to using output measures.

        For the years ended December 31, 2012, 2011 and 2010, revenue calculated using a cost-to-cost approach, including Zion Station project revenues, were $163.5 million, $175.0 million and $76.9 million respectively.

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        Revisions to revenue, cost and profit estimates, or measurements of the extent of progress toward completion, are changes in accounting estimates accounted for in the period of change (cumulative catch-up method). Contracts typically provide for periodic billings on a monthly basis or based on contract milestones. Costs and estimated earnings in excess of billings on uncompleted contracts represent amounts recognized as revenue that have not been billed. Unearned revenue represents amounts billed and collected for which revenue has not been recognized.

        We record contract claims and pending change orders, including requests for equitable adjustments ("REAs") when collection of revenue is reasonably assured, which generally is when accepted in writing by the customer. The costs to perform the work related to these claims and pending change orders including REAs are included in our financial statements in the period that they are incurred and are included in our estimates of contract profitability.

        A provision for estimated losses on individual contracts is recognized in the period in which the losses are identified and includes all estimated direct costs to complete such contracts (excluding future general and administrative costs expected to be allocated to the contracts). Monthly assessments are performed on our estimates and changes are made based on the latest information available. For the years ended December 31, 2012, 2011 and 2010, we recorded provision for losses in the amount of $0.9 million, $0.2 million and $1.6 million, respectively.

LP&D Contracts

        Our LP&D services are provided primarily under unit-rate contracts. Revenue is recognized as units of materials are processed or disposed based on the unit prices provided in the contracts.

D&D Liabilities

        We have responsibility for the cost to D&D our facilities and related equipment, as well as the equipment used at customer sites in our Commercial Services segment. These costs are generally paid upon closure of the facilities or disposal of the equipment. We are also responsible for the cost of monitoring our Clive, Utah facility over its post-closure period. We have also acquired the shut down nuclear power plants at Exelon's Zion Station in 2010, and assumed the related D&D liabilities.

        Accounting guidance for AROs requires us to record the fair value of an ARO as a liability in the period in which we incur a legal obligation associated with the retirement of tangible long-lived assets that result from the acquisition, construction, development or normal use of the asset except for the Zion Station related ARO. We are also required to record a corresponding asset that we depreciate over the life of the asset. For the Zion Station related ARO we do not record an ARO asset that depreciates because the underlying tangible assets have no future value. Instead, upon acquisition we capitalized deferred project costs that will be amortized to cost of revenue as the work is performed. After the initial measurement of our AROs, the ARO is adjusted at the end of each period to reflect the passage of time (accretion) and changes in the estimated future cash flows underlying the obligation.

        The cost basis for our landfill assets and related obligations include landfill liner material and installation, excavation for airspace, landfill leachate collection systems, environmental groundwater and air monitoring equipment, directly related engineering and design costs and other capital infrastructure costs. Also included in the cost basis of our landfill assets and related obligations are estimates of future costs associated with final landfill capping, closure and post-closure monitoring activities. These costs are described below:

•

Final capping—Involves the installation of final cap materials over areas of the landfill where total airspace has been consumed. We estimate available airspace capacity using aerial and ground surveys and other methods of calculation, based on permit-mandated height restrictions

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and other factors. Final capping AROs are recorded, with a corresponding increase in the landfill asset, as landfill airspace capacity is permitted for waste disposal activities and the cell liner is constructed. Final capping costs are recorded as an asset and a liability based on estimates of the discounted cash flows and capacity associated with the final capping event.

•

Closure—Involves the remediation of our land surrounding the disposal cell and the disposal of Company-owned property and equipment. These are costs incurred after the site ceases to accept waste, but before the site is certified to be closed by the applicable regulatory agency. These costs are accrued as an ARO, with a corresponding increase in the landfill asset, as airspace is consumed over the life of the landfill. Closure obligations are accrued over the life of the landfill based on estimates of the discounted cash flows associated with performing closure activities.



•

Post-closure—Involves the maintenance and monitoring of our landfill site that has been certified to be closed by the applicable regulatory agency. Subsequent to landfill closure, we are required to maintain and monitor our landfill site for a 100-year period. These maintenance and monitoring costs are accrued as an ARO, with a corresponding increase in the landfill asset, as airspace is consumed over the life of the landfill. Post-closure obligations are accrued over the life of the landfill based on estimates of the discounted cash flows associated with performing post-closure activities.

        The cost basis for our AROs and, if applicable, our ARO assets includes costs to decontaminate, disassemble and dispose of equipment and facilities. We develop our estimates of these obligations using input from our operations personnel, engineers and accountants. Our estimates are based on our interpretation of current requirements and proposed regulatory changes and are intended to approximate fair value. We use historical experience, professional engineering judgment and quoted and actual prices paid for similar work to determine the fair value of these obligations. We recognize these obligations at market prices whether we plan to contract with third parties or perform the work ourselves.

        Costs for the D&D of our facilities and equipment will generally be paid upon the closure of these facilities or the disposal of this equipment. We are obligated under our license granted by the state of South Carolina and the Atlantic Interstate Low-Level Radioactive Waste Compact Implementation Act for costs associated with the ultimate closure of the Barnwell Low-Level Radioactive Waste Disposal Facility in South Carolina and our buildings and equipment located at the Barnwell site (Barnwell closure). Under the terms of the Atlantic Waste Compact Act and our license with the state of South Carolina, we are required to maintain a trust fund to cover the Barnwell closure obligation, which limits our obligation to the amount of the trust fund.

        We are required to make significant estimates in the determination of our AROs and the related assets, if applicable. Our cost estimates for final capping, closure and post-closure activities and other D&D activities are intended to approximate fair value and are based on our interpretation of the current regulatory requirements and proposed or anticipated regulatory changes. Where applicable, these cost estimates are based on the amount a third party would charge to perform such activities even when we expect to perform these activities internally. Because final landfill capping, closure and post-closure obligations and decontamination and decommissioning obligations are measured using present value techniques, changes in the estimated timing of the related activities would have an effect on these liabilities, related assets and resulting operations.

        Changes in inflation rates or the estimated costs, timing or extent of the required future capping, closure, post-closure and other D&D activities typically result in both: (i) a current adjustment to the recorded liability and asset and (ii) a change in the liability and asset amounts to be recorded prospectively over the remaining life of the asset in accordance with our depreciation policy. However, for the Zion Station ARO, these charges are recorded directly to cost of revenue in the consolidated

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statement of operations and comprehensive income (loss). For instance, during 2011, we recorded $94.9 million to cost of revenue to reflect a net increase in estimated costs associated with the Zion station project. During 2012, the estimated cost evaluation resulted in a reduction in future expected costs due to lower estimated inflation and changes in expected timing of cash flows. A hypothetical 1% increase in the inflation rate would have increased our AROs by $17.8 million. A hypothetical 10% increase in our cost estimate would have increased our AROs by $67.1 million.

        We update our D&D and closure and post-closure cost estimates either annually or more frequently if changes in the underlying conditions occur. These estimates are based on current technology, regulations and burial rates. Changes in these factors could have a material impact on our estimates.

Recoverability of Long-Lived Assets, Including Goodwill

        As of December 31, 2012 and 2011, we had recorded $308.6 million and $306.4 million, respectively, of goodwill related to domestic and foreign acquisitions. Goodwill related to the acquisitions of foreign entities is translated into U.S. dollars at the exchange rate in effect at the balance sheet date. The related translation gains and losses are included as a separate component of stockholders' equity in accumulated other comprehensive income (loss) in the consolidated balance sheets.

        For purposes of the goodwill impairment assessment, goodwill is allocated to each of our reporting units which are Government Group, Commercial Services, LP&D and International. These reporting units were determined based on our internal management reporting and organizational structure. Goodwill is assigned to each of these reporting units based on which of the reporting units derive the benefits of an acquired company. If multiple reporting units benefit from an acquisition, goodwill is allocated to each reporting unit based on an allocation of revenue between the reporting units at the acquisition date.

        In accordance with authoritative guidance for accounting for goodwill and other intangible assets, we perform an impairment test on our goodwill annually, as of April 1, or more often when events occur or circumstances change that would, more likely than not, reduce the fair value of a reporting unit below its carrying value. When indicators of impairment do not exist and applicable accounting criteria are met, we are able to evaluate goodwill impairment using a qualitative approach. If indicators of impairment do exist, we test goodwill by first comparing the book value of net assets to the fair value of the reporting units.

        We estimate the fair value of the reporting units using a combined income and market approach. The income approach is calculated based on management's best estimates of future cash flows which depend upon pricing strategies, market segment share and general economic conditions. Changes in these forecasts could significantly change the calculated fair value of a reporting unit. The market approach is calculated based on market multiples for comparable companies as applied to our company-specific metrics. We believe the blended use of both models compensates for the inherent risk associated with either model if used on a stand-alone basis, and this combination is indicative of the factors a market participant would consider when performing a similar valuation. To the extent that actual contract wins or extensions differ from our assumptions, we re-evaluate estimated useful lives and the fair value of the associated assets. For instance, if we are unsuccessful in the Magnox rebid, we will be required to reassess the carrying value of the related goodwill and intangible assets currently recorded in the International reporting unit.

        Due to changes in management, decreased earnings guidance and a debt rating downgrade that occurred during the latter part of the second quarter of 2012, our stock price and corresponding market capitalization declined significantly. As a result, management performed a comprehensive review of its financial forecasts and adjusted its estimates of future cash flows. These events prompted

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us to perform interim goodwill impairment tests as of both June 30, 2012 and September 30, 2012. The first step of the interim impairment assessment compared the estimated fair value of each of the reporting units to the carrying value, including goodwill, and indicated, each of our reporting units' fair value exceeded their carrying value; therefore, the second step was not required. Each of our reporting units' fair value would have needed to decrease by the following percentages to fail the first step of the impairment test:

        The excess fair market value of our Commercial Services and International reporting units is less than 10%. A hypothetical increase in the weighted average discount of 0.5% would decrease the calculated fair value of the International reporting unit by approximately 1.6%. A hypothetical decrease in the residual growth rate of 0.5% would decrease the calculated fair value of the International reporting unit by approximately 2.4%. We would expect a similar outcome on the Commercial Services reporting unit if we made the same hypothetical changes to the residual growth rate and the discount rate. We evaluated whether there were any indicators of impairment as of December 31, 2012 that would require us to perform an additional interim impairment analysis and determined that there were none.

        Intangible assets acquired in a business combination are measured at fair value at the date of acquisition. We assess the useful lives of other intangible assets to determine whether events or circumstances warrant a revision to the remaining period of amortization. If the estimate of an intangible asset's remaining useful life is changed, the remaining carrying amount of the intangible asset is amortized prospectively over the revised remaining useful life. Intangible assets with estimable useful lives are amortized over their respective estimated useful lives and reviewed for impairment whenever events or circumstances indicate that the carrying value of such assets may not be recoverable.

        Intangible assets subject to amortization consist of customer relationships, licenses and permits, technology and non-compete agreements. Customer relationships, which include the fair value of acquired customer contracts, were evaluated for each reporting unit using a discounted cash flow methodology and are amortized on a straight-line basis over a term of two to twelve years. Estimated future cash flows for each operating segment were derived based on detailed budgets and projections prepared by management. Licenses and permits were evaluated for each licensed facility using a replacement cost methodology. Also, due to the unique characteristics of our Utah disposal facility permits, we also included an opportunity cost reflecting an estimate of earnings that would be lost if we had to replace the licenses and permits as opposed to having acquired them. Licenses and permits are either amortized over the definite terms of the related agreements or over the remaining useful lives of the related intangible asset, typically 20 to 25 years. Estimates of replacement costs were determined by management taking into consideration the cost of labor and other costs needed to meet regulatory requirements to obtain and maintain the licenses or permits. Estimates of opportunity cost were determined by management after considering estimated cash flows for the business generated with the

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licenses and permits offset by contribution asset charges for other assets of the business that also contribute to cash flow generation. Technology and non-compete agreements were evaluated using a discounted cash flow methodology. Intangible technology assets are amortized on a straight-line basis over a term of nine to ten years and non-compete agreements are amortized over the terms of the contracts. Estimated future cash flows for each technology and non-compete agreement were derived based on detailed budgets and projections prepared by management.

        Long-lived assets such as property, plant and equipment are reviewed for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by comparing the carrying amount of the asset to the estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is recognized by the amount of excess carrying value over fair value.

Share-Based Compensation Expense

        We recognize shared based compensation costs in the statement of operations and comprehensive income (loss) over the instruments' vesting periods based on the instruments' fair values on the measurement date, which is generally the date of the grant using a valuation model which takes into account various assumptions that are subjective. Key assumptions used in the valuation included the expected term of the equity award taking into account both the contractual term of the award, the effects of employees' expected exercise and post-vesting termination behavior, expected volatility, expected dividends and the risk-free interest rate for the expected term of the award.

        In our share-based compensation strategy, we utilize a combination of stock options, restricted stock and phantom stock awards that vest over time based on service, performance and market conditions. For time-based stock options and restricted stock, compensation expense is recognized over the vesting period from the vesting commencement date using the straight-line method. For performance based stock options and restricted stock compensation expense is recognized over the vesting period beginning at the grant date if it is probable that performance targets will be achieved. If prior to the performance measurement date, it is no longer probable that the performance targets will be achieved, the expense related to the grant will be adjusted accordingly and prior recognized compensation expense may be reversed. Also, if at the performance measurement date the performance targets are not achieved, the expense related to the grants will be adjusted to the earned amounts and compensation expense will also be adjusted accordingly. We have options outstanding to purchase an aggregate of 2.5 million shares, of which 2.4 million are unvested and unvested restricted shares of 1.3 million as of December 31, 2012. We also have unrecognized compensation expense for phantom stock awards of $12.8 million as of December 31, 2012. We estimate that we will recognize compensation expense related to the issuance of these awards of $7.6 million, $5.2 million and $2.8 million in 2013, 2014 and 2015, respectively. Our estimates of fair value for the stock options was made using the Black-Scholes model based upon the closing stock price on the date of grant, volatility of 44.3%, risk-free interest rate of 1.13% per year and expected life of 6.0 years. We determined the volatility rate by reference to volatility rates used by certain of our public industry peers since we do not have sufficient established trading history of our common stock. We are currently using the simplified method to calculate expected holding periods, which is based on the average term of the options and the weighted-average graded vesting period.

        Phantom stock provides a cash or stock bonus based on the value of a stated number of shares to be paid out at the end of a specified period of time. The value of the phantom shares payable in cash is dependent on the Company's closing stock price on the vesting or measurement date. Since these awards are generally payable in cash, these awards are revalued at the end of each reporting period and are classified as liabilities. A portion of our phantom stock awards is payable in restricted stock rather than cash. This portion is not considered a liability award and is not revaluated at each reporting

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period but rather has a grant date fair value determined by using a Monte Carlo model and is amortized over the vesting period using the accelerated attribution method. Our estimates of fair value for the phantom stock awards made using a Monte Carlo model were based upon the closing stock price on the date of grant or at the balance sheet date depending on whether the award was considered a liability award, volatility of 68.4%, risk-free interest rate of 0.41%, expected life of between 3.0 and 6.0 years and for the equity component a discount of 15% for a lack of marketability.

Income Taxes

        We account for income taxes in accordance with ASC 740, Accounting for Income Taxes. Current tax liabilities and assets are recognized for the estimated taxes payable or refundable on the tax returns for the current year. Deferred tax liabilities or assets are recognized for the estimated future tax effects attributable to temporary differences and carry-forwards that result from events that have been recognized in either the financial statements or the tax returns, but not both. The measurement of current and deferred tax liabilities and assets is based on provisions of enacted tax laws. Deferred tax assets are reduced by the amount of any tax benefits that are not expected to be realized. Significant judgment and estimation are required in determining any valuation allowance recorded against deferred tax assets. In assessing the need for a valuation allowance, we consider all available evidence including past operating results, estimates of future taxable income and planning strategies. In the event that we change our determination as to the amount of deferred tax assets that can be realized, we will adjust our valuation allowance with a corresponding impact to the provision for income taxes in the period in which such determination is made.

        Current and non-current components of deferred tax balances are reported separately based on financial statement classification of the related asset or liability giving rise to the temporary difference. If a deferred tax asset or liability is not related to an asset or liability that exists for financial reporting purposes, including deferred tax assets related to carryforwards, the deferred tax asset or liability would be classified based on the expected reversal date of the temporary difference.

        Tax benefits associated with tax positions taken in the Company's income tax returns are initially recognized and measured in the financial statements when it is more likely than not that those tax positions will be sustained upon examination by the relevant taxing authorities. The Company's evaluation of its tax benefits is based on the probability of the tax position being upheld if challenged by the taxing authorities (including through negotiation, appeals, settlement and litigation). Whenever a tax position does not meet the initial recognition criteria, the tax benefit is subsequently recognized and measured if there is a substantive change in the facts and circumstances that cause a change in judgment concerning the sustainability of the tax position upon examination by the relevant taxing authorities. In cases where tax benefits meet the initial recognition criterion, the Company continues, in subsequent periods, to assess its ability to sustain those positions. A previously recognized tax benefit is derecognized when it is no longer more likely than not that the tax position would be sustained upon examination. We recognize interest and penalties related to unrecognized tax benefits as a component of the provision for income taxes. We recognized interest related to tax refunds as a component of other income.

        Judgment is required in determining our worldwide provision for income taxes. In the normal course of a global business, we may engage in numerous transactions every day for which the ultimate tax outcome (including the period in which the transaction will ultimately be included in taxable income or deducted as an expense) is uncertain. Although the Company believes that its tax return positions are supportable, no assurance can be given that the final outcome of these matters will not be materially different than that which is reflected in the historical income tax provisions and accruals. Such differences could have a material effect on the income tax provisions or benefits in the periods in which such determinations are made. Additionally, the tax returns we file are subject to audit and

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investigation by the Internal Revenue Service, most states in the U.S., the U.K. and by various other government agencies representing jurisdictions outside the U.S.

Disclosure of Impact of Recently Issued Accounting Standards

Intangible assets

        In July 2012, the Financial Accounting Standards Board ("FASB") issued guidance regarding testing indefinite-lived intangible assets for impairment. The guidance provides an entity the option to assess qualitative factors to determine whether the existence of events and circumstances leads to the determination that it is more likely than not (a likelihood of more than 50 percent) that the indefinite-lived intangible asset is impaired. If the entity concludes that it is more likely than not that the asset is impaired, it is required to determine the fair value of the intangible asset and perform the quantitative impairment test by comparing the fair value with the carrying value. If the entity concludes otherwise, no further quantitative assessment is required. This guidance is effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012, although early adoption is permitted. The adoption of this guidance is not expected to have an impact on our results of operations, financial position or cash flows.

Other Comprehensive Income

        In June 2011, the FASB issued new guidance on the presentation of comprehensive income in financial statements. This guidance eliminates the option to present the components of other comprehensive income as part of the statement of shareholders' equity. Instead, entities are required to present total comprehensive income either in a single, continuous statement of comprehensive income or in two separate, but consecutive, statements. Under the single-statement approach, entities must include the components of net income, a total for net income, the components of other comprehensive income and a total for comprehensive income. Under the two-statement approach, entities must report an income statement and, immediately following, a statement of other comprehensive income. Under either method, entities must display adjustments for items reclassified from other comprehensive income to net income in both net income and other comprehensive income. The provisions for this pronouncement were effective for fiscal years, and interim periods within those years, beginning after December 15, 2011. The adoption of this guidance did not have an impact on our consolidated financial statements as it only requires a change in the format of our presentation.

        In February 2013, the FASB issued an update to improve the transparency of reporting reclassifications out of accumulated other comprehensive income. The amendments in the update did not change the current requirements for reporting net income or other comprehensive income in financial statements. The new amendments require an organization to present (either on the face of the statement where net income is presented or in the notes) the effects on the line items of net income of significant amounts reclassified out of accumulated other comprehensive income if the item reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period. Additionally, for other amounts that are not required under U.S. GAAP to be reclassified in their entirety to net income in the same reporting period, an entity is required to cross-reference other disclosures required under U.S. GAAP to provide additional detail about those amounts. The amendments are effective for reporting periods beginning after December 15, 2012. The Company does not expect that the adoption of this guidance will have a material impact on the consolidated financial statements.

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Item 7A.    Qualitative and Quantitative Disclosures about Market Risk.

        Our primary market risk relates to changing interest rates. As of December 31, 2012, we had outstanding variable rate long-term debt of $527.0 million, of which $16.6 million is due within the next year. Under the terms of our senior secured credit facility, we are required to maintain one or more hedge agreements bearing interest at a fixed rate in the aggregate notional amount of no less than 50% of the outstanding principal amounts of our long term debt. Since the outstanding balances under our senior notes bear interest at a fixed rate of 10.75% and totaled $300.0 million as of December 31, 2012, which is 58.1% of our total outstanding term loans net of $310.6 million in restricted cash collateralizing deposit letters of credit, we were not required to enter into new hedge agreements. A hypothetical interest rate change of 1% on our senior secured credit facility would have changed interest expense for the year ended December 31, 2012 by approximately $5.3 million. In addition, changes in market interest rates would impact the fair value of our long-term obligations.

        We have foreign currency exposure related to our operations in the U.K. as well as to our operations in other foreign locations. This foreign currency exposure arises primarily from the translation or re-measurement of our foreign subsidiaries' financial statements into U.S. dollars. For example, a substantial portion of our annual sales and operating costs are denominated in pound sterling and we have exposure related to sales and operating costs increasing or decreasing based on changes in currency exchange rates. If the U.S. dollar increases in value against these foreign currencies, the value in U.S. dollars of the assets and liabilities originally recorded in these foreign currencies will decrease. Conversely, if the U.S. dollar decreases in value against these foreign currencies, the value in U.S. dollars of the assets and liabilities originally recorded in these foreign currencies will increase. Thus, increases and decreases in the value of the U.S. dollar relative to these foreign currencies have a direct impact on the value in U.S. dollars of our foreign currency denominated assets and liabilities, even if the value of these items has not changed in their original currency. We attempt to mitigate the impact of this exchange rate risk by utilizing financial instruments, including derivative transactions pursuant to our policies. As such, a 10% change in the U.S. dollar exchange rates in effect as of December 31, 2012, would cause a change in consolidated net assets of approximately $15.2 million and a change in gross profit of approximately $4.8 million, primarily due to pound sterling-denominated exposures.

        We maintain a NDT fund to fund the decommissioning of the Zion Station nuclear plant. Our NDT fund is reflected at fair value on our consolidated balance sheets. As of December 31, 2012, we had outstanding net investments with carrying amounts of $557.9 million with an approximate fair value of $591.1 million. The mix of securities in the NDT fund is designed to provide capital to be used to fund our Zion Station D&D work and to compensate us for inflationary increases in D&D costs. However, the equity securities in the NDT fund are exposed to price fluctuations in the equity markets and the value of fixed-rate, fixed-income securities are exposed to changes in interest rates. A hypothetical change in rates of 30 basis points would have changed the fair value of the NDT fund investments by approximately $9.9 million.

Item 8.    Financial Statements and Supplementary Data.

        See pages beginning at F-1 of this Annual Report on Form 10-K.

Item 9.    Changes in and Disagreements With Accountants on Accounting and Financial Disclosure.

        None.

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Item 9A.    Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

        Our principal executive officer and principal financial officer have concluded that our disclosure controls and procedures (as defined in Rules 13a-15(e) or 15d-15(e) of the Exchange Act) are effective as of the end of the period covered by this report, based upon the evaluation of those controls and procedures by our management, with the participation of our principal executive officer and principal financial officer, required by paragraph (b) of Rule 13a-15 or Rule 15d-15 of the Exchange Act.

Management's Report on Internal Control Over Financial Reporting

        Our management is responsible for establishing and maintaining effective internal control over financial reporting and for the assessment of the effectiveness of internal control over financial reporting. The company's internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of consolidated financial statements for external purposes in accordance with generally accepted accounting principles in the U.S. and includes those policies and procedures that (i) pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and dispositions of the Company's assets; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that the Company's receipts and expenditures are being made only in accordance with authorizations of the Company's management and directors; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the Company's assets that could have a material effect on the financial statements.

        In connection with the preparation of the company's annual consolidated financial statements, management of the Company has undertaken an assessment of the effectiveness of the company's internal control over financial reporting based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission. Management's assessment included evaluation of elements such as the design and operating effectiveness of key financial reporting controls, process documentation, accounting practices and our overall control environment. Based on this assessment, management has concluded that the Company's internal control over financial reporting was effective as of December 31, 2012. We reviewed the results of management's assessment with the Audit Committee of our Board of Directors.

        There were no changes to our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) that occurred during our fourth fiscal quarter of 2012 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

        Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

        Our independent registered public accounting firm, Ernst & Young LLP, independently assessed the effectiveness of our internal control over financial reporting and has issued an attestation report on our internal control over financial reporting which is included on page F-2 of this Annual Report on Form 10-K.

Item 9B.    Other Information.

        None.

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PART III

Item 10.    Directors, Executive Officers and Corporate Governance.

        Unless provided in an Amendment to this Annual Report on Form 10-K, the information required by this item will be included in our 2013 Proxy Statement under the captions "Proposal One—Election of Directors," "Executive Officers," "Section 16(a) Beneficial Ownership Reporting Compliance," "Corporate Governance" and "Board of Directors and Committees" and is hereby incorporated herein by reference.

Item 11.    Executive Compensation.

        Unless provided in an Amendment to this Annual Report on Form 10-K, the information required by this item will be included in our 2013 Proxy Statement under the captions "Director Compensation" and "Executive Compensation" and is hereby incorporated herein by reference.

Item 12.    Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

        Unless provided in an Amendment to this Annual Report on Form 10-K, the information required by this item will be included in our 2013 Proxy Statement under the captions "Security Ownership of Certain Beneficial Owners" and "Equity Compensation Plan Information" and is hereby incorporated herein by reference.

Item 13.    Certain Relationships and Related Transactions and Director Independence.

        Unless provided in an Amendment to this Annual Report on Form 10-K, the information required by this item will be included in our 2013 Proxy Statement under the captions "Corporate Governance" and "Certain Relationships and Related Person Transactions" and is hereby incorporated herein by reference.

Item 14.    Principal Accountant Fees and Services.

        Unless provided in an Amendment to this Annual Report on Form 10-K, the information required by this item will be included in our 2013 Proxy Statement under the caption "Pre-Approval of Audit and Non-Audit Services" and is hereby incorporated herein by reference.

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PART IV

Item 15.    Exhibits and Financial Statement Schedules.

        Documents filed as part of this report include:

1.

Financial Statements.    Our consolidated financial statements as of December 31, 2012 and 2011, and for the years ended December 31, 2012, 2011 and 2010 and the notes thereto, together with the report of our independent registered public accounting firm on those consolidated financial statements, are hereby filed as part of this report beginning on page F-1.



2.

Financial Statements.    Financial statements of Washington River Protection Solutions LLC, an unconsolidated joint venture as of and for the year ended December 31, 2012, 2011 and 2010 and the notes thereto, together with the report of their independent auditor on those financial statements, are hereby filed as part of this report beginning on page F-50.



3.

Financial Statement Schedules and Other.    All financial statement schedules have been omitted since the required information is not applicable or is not present in amounts sufficient to require submission of the schedule, or because the information required is included in the consolidated financial statements and notes thereto.



4.

Exhibits.    The information required by this item is set forth on the exhibit index that follows the signature page of this report.

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SIGNATURES

        Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, this 15th day of March, 2013.

Power of Attorney

        KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints David J. Lockwood and Gregory S. Wood, jointly and severally, his or her attorneys-in-fact, each with the power of substitution, for him in any and all capacities, to sign any amendments to this Annual Report on Form 10-K, and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, hereby ratifying and confirming all that each of said attorneys-in-fact, or his substitute or substitutes, may do or cause to be done by virtue hereof.

        Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated:

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EXHIBIT INDEX

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EnergySolutions, Inc.

Index to Consolidated Financial Statements

Contents

F-1

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Report of Ernst & Young LLP, Independent Registered Public Accounting Firm

The Board of Directors and Stockholders of
EnergySolutions, Inc.

        We have audited the accompanying consolidated balance sheets of EnergySolutions, Inc. as of December 31, 2012 and 2011, and the related consolidated statements of operations and comprehensive income (loss), changes in stockholders' equity, and cash flows for each of the three years in the period ended December 31, 2012. These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements based on our audits.

        We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

        In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated financial position of EnergySolutions, Inc. at December 31, 2012 and 2011, and the consolidated results of its operations and its cash flows for each of the three years in the period ended December 31, 2012, in conformity with U.S. generally accepted accounting principles.

        We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), EnergySolutions, Inc.'s internal control over financial reporting as of December 31, 2012, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated March 18, 2013 expressed an unqualified opinion thereon.

Salt Lake City, Utah
March 18, 2013

F-2

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Report of Ernst & Young LLP, Independent Registered Public Accounting Firm
On Internal Control Over Financial Reporting

The Board of Directors and Stockholders of
EnergySolutions, Inc.

        We have audited EnergySolutions, Inc.'s internal control over financial reporting as of December 31, 2012, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (the "COSO criteria"). EnergySolutions, Inc.'s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management's Annual Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company's internal control over financial reporting based on our audit.

        We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

        A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the company's assets that could have a material effect on the financial statements.

        Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

        In our opinion, EnergySolutions, Inc. maintained, in all material respects, effective internal control over financial reporting as of December 31, 2012, based on the COSO criteria.

        We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheets of EnergySolutions, Inc. as of December 31, 2012 and 2011, and the related consolidated statements of operations and comprehensive income (loss), changes in stockholders' equity, and cash flows for each of the three years in the period ended December 31, 2012 and our report dated March 18, 2013 expressed an unqualified opinion thereon.

Salt Lake City, Utah
March 18, 2013

F-3

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EnergySolutions, Inc.

Consolidated Balance Sheets

December 31, 2012 and 2011

(in thousands of dollars, except per share information)

   

See accompanying notes to consolidated financial statements.

F-4

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EnergySolutions, Inc.

Consolidated Statements of Operations and Comprehensive Income (Loss)

Years Ended December 31, 2012, 2011 and 2010

(in thousands of dollars, except per share information)

   

See accompanying notes to consolidated financial statements.

F-5

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EnergySolutions, Inc.

Consolidated Statements of Changes in Stockholders' Equity

Years Ended December 31, 2012, 2011 and 2010

(in thousands of dollars, except per share information)