AMKR 12.31.13 10K

 
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Form 10-K
ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
For the Fiscal Year Ended December 31, 2013
Commission File Number 000-29472
Amkor Technology, Inc.
(Exact name of registrant as specified in its charter)
Delaware
(State of incorporation)
 
23-1722724
(I.R.S. Employer
Identification Number)
1900 South Price Road
Chandler, AZ 85286
(480) 821-5000
(Address of principal executive offices and zip code)
Securities registered pursuant to Section 12(b) of the Act:
Title of Each Class
 
Name of Each Exchange on Which Registered
Common Stock, $0.001 par value
 
The NASDAQ Global Select Market
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 þ
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 þ
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, as amended, 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 þ     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 Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes þ     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. (Check one):
Large accelerated filer o
Accelerated filer þ
Non-accelerated filer o
Smaller reporting company o
 
(Do not check if a smaller reporting company)
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  Yes o     No þ
The aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant as of June 30, 2013, based upon the closing price of the common stock as reported by the NASDAQ Global Select Market on that date, was approximately $330.5 million.
The number of shares outstanding of each of the issuer’s classes of common equity, as of January 31, 2014, was as follows: 217,901,240 shares of Common Stock, $0.001 par value.
DOCUMENTS INCORPORATED BY REFERENCE:
Portions of the registrant’s Proxy Statement relating to its 2014 Annual Meeting of Stockholders, to be filed subsequently, are incorporated by reference into Part III of this Report where indicated.
 


Table of Contents

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All references in this Annual Report on Form 10-K to “Amkor,” “we,” “us,” “our” or the “company” are to Amkor Technology, Inc. and its subsidiaries. We refer to the Republic of Korea, which is also commonly known as South Korea, as “Korea”. All references to "J-Devices" and "Toshiba" are to J-Devices Corporation and Toshiba Corporation, respectively. Amounts preceded by ₩ are in Korean won, and amounts preceded by ¥ are in Japanese yen. Amkor®, Amkor Technology®, ChipArray®, FlipStack®, FusionQuad®, MicroLeadFrame® and TMV® are registered trademarks of Amkor Technology, Inc. All other trademarks appearing herein are held by their respective owners. Subsequent use of the above registered trademarks in this report may occur without the respective superscript symbol (®) in order to facilitate the readability of the report and are not a waiver of any rights that may be associated with the relevant trademarks.

This report contains forward-looking statements within the meaning of the federal securities laws, including but not limited to statements regarding: (1) the amount, timing and focus of our expected capital investments in 2014 including expenditures in support of customer demand in the mobile communications market and expenditures related to our new factory and research and development facility in Korea, (2) our ability to fund our operating activities for the next twelve months, (3)


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the effect of changes in capacity utilization on our gross margin, (4) the focus of our research and development activities, (5) the expiration of tax holidays in jurisdictions in which we operate and expectations regarding our effective tax rate, (6) the release of valuation allowances related to taxes in the future, (7) our repurchase or repayment of outstanding debt or the conversion of debt in the future, (8) payment of dividends, (9) compliance with our covenants, (10) expected contributions to foreign pension plans, (11) liability for unrecognized tax benefits, (12) the effect of foreign currency exchange rate exposure on our financial results, (13) the volatility of the trading price of our common stock, (14) changes to our internal controls related to integration of acquired operations and implementation of our enterprise resource planning (“ERP”) system and other systems, (15) our view of the outcome of our dispute with Tessera and our estimates regarding the possible amount of, and funding for, any payments due in conjunction with such dispute, (16) the anticipated schedule for construction of our new factory and research and development facility in Korea, (17) our plan to increase our ownership of J-Devices and consolidation of J-Devices' results into our consolidated financial statements, (18) our expected forfeiture rate for outstanding stock options and restricted shares, (19) our expected rate of return for pension plan assets and (20) other statements that are not historical facts. In some cases, you can identify forward-looking statements by terminology such as “may,” “will,” “should,” “expects,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “potential,” “continue,” “intend” or the negative of these terms or other comparable terminology. Because such statements include risks and uncertainties, actual results may differ materially from those anticipated in such forward-looking statements as a result of various factors, including those set forth in the following report as well as in Part I, Item 1A of this Annual Report on Form 10-K.


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PART I

Item 1.
Business

OVERVIEW

Amkor is one of the world’s leading providers of outsourced semiconductor packaging and test services. Amkor pioneered the outsourcing of semiconductor packaging and test services through a predecessor corporation in 1968, and over the years we have built a leading position by:
Designing and developing innovative packaging and test technologies;
Offering a broad portfolio of cost-effective solutions and services;
Successfully penetrating strategic end markets which offer solid growth prospects;
Cultivating long-standing relationships with our customers, which include many of the world’s leading semiconductor companies;
Collaborating with customers, original equipment manufacturers (“OEMs”) and equipment and material suppliers;
Developing a competitive cost structure with disciplined capital investment;
Building expertise in high-volume manufacturing processes and developing a reputation for high quality and solid execution and
Having a diversified operational scope with research and development, engineering and production capabilities at various facilities throughout China, Japan, Korea, Malaysia, the Philippines and Taiwan.
Our packaging and test services are designed to meet application and chip specific requirements including the type of interconnect technology employed; size; thickness and electrical, mechanical and thermal performance. We are able to provide turnkey packaging and test services including semiconductor wafer bump, wafer probe, wafer backgrind, package design, packaging, test and drop shipment services. Our customers will use us for one or more of these services.

We provide our services to integrated device manufacturers (“IDMs”), “fabless” semiconductor companies and contract foundries. IDMs generally design, manufacture, package and test semiconductors in their own facilities. However, the availability of technologically advanced outsourced manufacturing services has encouraged IDMs to increasingly outsource their manufacturing service needs. Fabless semiconductor companies do not have factories and focus exclusively on the semiconductor design process and outsource virtually every step of the manufacturing process. Fabless semiconductor companies utilize contract foundries to manufacture their semiconductors in wafer form, and companies such as Amkor for their packaging and test needs. Some companies will engage a contract foundry to manage the complete semiconductor manufacturing process, and in turn, the contract foundry will outsource some of its packaging and test needs.

Our IDM customers include: Intel Corporation; Micron Technology, Inc.; STMicroelectronics N.V.; Texas Instruments Incorporated and Toshiba Corporation. Our fabless customers include: Altera Corporation; Broadcom Corporation; LSI Corporation and Qualcomm Incorporated. Our contract foundry customers include: GlobalFoundries Inc. and Taiwan Semiconductor Manufacturing Company Limited.

AVAILABLE INFORMATION

Amkor files annual, quarterly and current reports, proxy statements and other information with the U.S. Securities and Exchange Commission (the “SEC”). You may read and copy any document we file at the SEC’s Public Reference Room, 100 F Street, NE, Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 for information on the Public Reference Room. The SEC maintains a web site that contains annual, quarterly and current reports, proxy statements and other information that issuers (including Amkor) file electronically with the SEC. The SEC’s web site is http://www.sec.gov.

Amkor’s web site is http://www.amkor.com. Amkor makes available free of charge through its web site, our annual reports on Form 10-K; quarterly reports on Form 10-Q; current reports on Form 8-K; Forms 3, 4 and 5 filed on behalf of directors


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and executive officers and any amendments to those reports filed or furnished pursuant to the Securities Exchange Act of 1934, as amended, as soon as reasonably practicable after such material is electronically filed with, or furnished to, the SEC. We also make available, free of charge, through our web site, our Corporate Governance Guidelines, the charters of the Audit Committee, Nominating and Governance Committee and Compensation Committee of our Board of Directors, our Code of Business Conduct, our Code of Ethics for Directors and other information and materials. The information on Amkor’s web site is not incorporated by reference into this report.

INDUSTRY BACKGROUND

Semiconductor devices are the essential building blocks used in most electronic products. As electronic and semiconductor devices have evolved, several important trends have emerged that have fueled the growth of the overall semiconductor industry, as well as the market for outsourced semiconductor packaging and test services. These trends include:
An increasing demand for mobile and internet-connected devices, including world-wide adoption of mobile “smart” phones and tablets that can access the web and provide multimedia capabilities. The demand for digital video content has driven a range of higher performance internet connected home and mobile consumer electronics products including the rapidly growing smartphone and tablet categories.
An increase in mobility and connectivity capabilities and growing digital content driving demand for new broadband wired and wireless networking equipment.
The proliferation of semiconductor devices into well established end products such as automotive systems due to increased use of electronics for safety, navigation, fuel efficiency, emission reduction and entertainment systems.
An overall increase in the semiconductor content within electronic products to provide greater functionality and higher levels of performance.
Our business is impacted by market conditions in the semiconductor industry, which is cyclical by nature and impacted by broad economic factors, such as world-wide gross domestic product and consumer spending. Historical trends indicate there has been a strong correlation between world-wide gross domestic product levels, consumer spending and semiconductor industry cycles.

Outsourcing Trends in Semiconductor Manufacturing

Semiconductor companies outsource their packaging and test needs to service providers such as Amkor for the following reasons:

Packaging and test service providers have developed expertise in advanced technologies.

Semiconductor packaging and test technologies continue to become more sophisticated, complex and customized due to increasing demands for miniaturization, greater functionality and improved thermal and electrical performance. This trend has led many semiconductor companies and OEMs to view packaging and test as enabling technologies requiring sophisticated expertise and technological innovation. Many of these companies are also relying on packaging and test service providers as key sources for new package designs and advanced interconnect technologies, thereby enabling them to reduce their internal research and development costs.

Packaging and test service providers offer a cost effective solution in a highly cyclical, capital intensive industry.

The semiconductor industry is cyclical by nature and impacted by broad economic factors, such as changes in world-wide gross domestic product and consumer spending. Semiconductor packaging and test are complex processes requiring substantial investment in specialized equipment, factories and human resources. As a result of this cyclicality and the large investments required, manufacturing facilities must operate at consistently high levels of utilization to be cost effective. Shorter product life cycles, coupled with the need to update or replace packaging and test equipment to accommodate new package types, make it more difficult for integrated semiconductor companies to maintain cost effective utilization of their packaging and test assets throughout semiconductor industry cycles. Packaging and test service providers, on the other hand, can typically use their assets to support a broad range of customers, potentially generating more efficient use of their production assets and a more cost effective solution.


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Packaging and test service providers can facilitate a more efficient supply chain and help shorten time-to-market for new products.

We believe that semiconductor companies, together with their customers, are seeking to shorten the time-to-market for their new products, and that having an effective supply chain is a critical factor in facilitating timely and successful product introductions. Packaging and test service providers have the resources and expertise to timely develop their capabilities and implement new packaging technology in volume. For this reason, semiconductor companies and OEMs are leveraging capabilities of packaging and test service providers to deliver their new products to market more quickly.

High quality packaging and test service providers enable semiconductor manufacturers to focus their resources on semiconductor design and wafer fabrication.

As semiconductor process technology migrates to larger wafers and smaller feature sizes, the cost of building a state-of-the-art wafer fabrication factory has risen significantly and can now be several billions of dollars. The high cost of investing in next generation silicon technology and equipment is causing many semiconductor companies to adopt or maintain a “fabless” or “fab-lite” strategy to reduce or eliminate their investment in wafer fabrication and associated packaging and test operations. As a result, these companies are increasing their reliance on outsourced providers of semiconductor manufacturing services, including packaging and test.

STRATEGY AND COMPETITIVE STRENGTHS

Strategy

Our financial goals are sales growth and improved profitability, and we are focusing on the following strategies to achieve these goals:

Leverage Our Investment in Services for Advanced Technologies

We are an industry leader in developing and commercializing cost-effective advanced packaging and test technologies. These technologies provide increased value to our customers while typically generating gross margins above the corporate average. This is particularly true in the mobile device market, where growth has outpaced the industry rate. The key to success in the advanced packaging and test area is to generate reasonably quick returns on investments made for customers seeking leading edge technologies.

In recent years we have invested hundreds of millions of dollars on state-of-the-art facilities and equipment to provide services for the industry’s most complex devices. With approximately 400 employees engaged in research and development focusing on the design and development of new semiconductor packaging and test technologies, we have achieved technology leadership in areas such as fine pitch bumping, advanced flip chip and wafer-level processing. During 2013, we had success capitalizing on our advanced technology to achieve design wins and new product introductions in areas such as chips fabricated at 20 nanometer geometries, fingerprint sensors and NAND memory. We are also making substantial progress with 2.5D and 3D interconnect solutions that stack multiple active chips in a single package, as we work closely with our customers to develop cost-effective leading-edge packages for the next generation of devices.

We believe that the value added by advanced packaging services will continue to grow as our customers and leading electronics OEMs strive for smaller device geometries, higher levels of speed and performance and lower power consumption. We intend to continue to leverage our investment in advanced technology to meet the demand for these services.

Improve Utilization of Existing Assets

Another key to our success is to improve the utilization of our existing assets. The transition by leading edge customers to newer packaging and test equipment and platforms typically creates capacity to provide incremental packaging and test services without significant additional investment. As part of our strategy, we are focused on developing a second wave of customers for these assets. For example, we have a concerted effort to increase our sales to Chinese and Taiwanese fabless


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chip companies, since they dominate the mid-tier and entry-level segments of the mobile device market where most of the growth is occurring.

Also in 2013, we began efforts to seek out and engage new customers in the analog area for our mainstream wirebond technologies. Another area of expanded emphasis is the automotive market where semiconductor content continues to grow. These efforts to enlarge our customer base will increase in 2014 as we target these and other customers to grow our revenue and improve the utilization of our existing assets.

Selectively Grow Our Scale and Scope through Strategic Investments

From time to time we see attractive opportunities to grow our customer base and expand markets. For example, in 2009 we invested in J-Devices Corporation, a joint venture to provide semiconductor packaging and test services in Japan. In 2013, we increased our investment in J-Devices to 60%. Together with J-Devices, we are pursuing a consolidate and fill strategy with IDM customers in Japan, and we believe our increasing engagement with J-Devices will improve our revenues, particularly in the automotive market. In 2013, we acquired Toshiba’s power discrete semiconductor packaging and test factory in Malaysia. In addition to adding a new revenue stream from our existing customer, Toshiba, we expect this acquisition to attract new customers.

We believe that selective growth through joint ventures, acquisitions and other strategic investments can help diversify our revenue streams, improve our profits and continue our technological leadership. We expect to continue to evaluate these types of opportunities in 2014.

Competitive Strengths

The outsourced semiconductor packaging and test market is very competitive. We also compete with the internal semiconductor packaging and test capabilities of many of our customers. We believe we are well-positioned in the outsourced packaging and test services market. The following competitive strengths allow us to build upon our industry position and to remain one of the preferred providers of semiconductor packaging and test services.

Leading Technology Innovator

We are a leader in developing advanced semiconductor packaging and test solutions. We have designed and developed several state-of-the-art package formats and technologies including our Package-on-Package (“PoP”) platform with Through Mold Via (“TMV”) technology, FusionQuad, flip chip ball grid array, multi-chip modules with a silicon interposer placed between the module chips and substrate, copper pillar bumping and fine pitch copper pillar flip chip packaging technologies. In addition, we believe that as semiconductor technology continues to achieve smaller device geometries with higher levels of speed and performance, packages will increasingly require flip chip and three dimensional or “3D” interconnect solutions that stack multiple active chips in a single package. We have been investing in our technology leadership in electroplated wafer bumping, wafer-level processing and 3D packaging technologies. We have also been a leader in developing environmentally friendly integrated circuit packaging, which involves the elimination of lead and certain other materials.

In the area of 3D packaging, we have been a market and technology leader in both stacked die, such as stacked chip scale packages and FlipStack, and stacked package technologies such as PoP and TMV. The semiconductor industry is now in a period of 3D packaging development where Through Silicon Via (“TSV”) interconnect technology will be used to create 3D integrated circuits. An alternative approach to full 3D stacking is to place active die on a passive silicon interposer, which in turn is placed on the package substrate. The use of a silicon interposer is often referred to as a “2.5D” packaging solution. We continue to invest in developing the key processes and packaging and test technologies required for our customers to deliver 2.5D and 3D solutions to market. We are a leader in wafer thinning, micro-bumping and TSV-based flip chip stacking technologies, and we are leveraging our technology development relationships with key customers in diverse applications to develop and deploy new 2.5D and 3D packaging and test solutions with high density TSV interconnections.



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Long-Standing Relationships and Collaboration with Prominent Semiconductor Companies

Our customers include most of the world’s largest semiconductor companies and over the last four decades, we have developed long-standing relationships with many of these companies. We believe that our production excellence has been a key factor in our success in attracting and retaining customers. We work with our customers and our suppliers to develop proprietary process technologies to enhance our existing capabilities, reduce time-to-market, increase quality and lower costs.

We believe that our focus on research and product development will enable us to enter new markets early, capture market share and promote the adoption of our new package designs as industry standards. We collaborate with customers and leading OEMs to develop comprehensive packaging solutions that make it easier for next-generation semiconductors to be designed into next-generation end products. By collaborating with leading semiconductor companies and OEM electronic companies, we gain access to technology roadmaps for next generation semiconductor designs and obtain the opportunity to develop new packages that satisfy their future requirements.

Broad Offering of Semiconductor Package Design, Packaging and Test Services

Creating successful interconnect solutions for advanced semiconductor devices often poses unique thermal, electrical and mechanical design challenges, and we employ a large number of engineers to solve these challenges. We provide services for more than 1,000 unique products, representing one of the broadest package offerings in the semiconductor industry. This wide variety of packaging offerings is necessary to meet the diverse needs of our customers for the optimal combination of performance, size and cost attributes. Our solutions enable our customers to focus on semiconductor design and wafer fabrication while utilizing Amkor as their turnkey design and manufacturing provider and, in many cases, their packaging technology innovator.

We also offer an extensive line of advanced probe and final test services for analog, digital, logic, mixed signal and radio frequency semiconductor devices. We believe that the breadth of our design, packaging and test services is important to customers seeking to limit the number of their suppliers.

Geographically Diversified Operational Base

We have a broad and geographically diversified operational footprint of six million square feet of space strategically located in six countries in many of the world’s important electronics manufacturing regions. We believe that our scale and scope allow us to provide cost effective solutions to our customers by:
Offering capacity to absorb large orders and accommodate quick turn-around times;
Obtaining favorable pricing on materials and equipment, where possible, by using our purchasing power and leading industry position;
Qualifying production of customer devices at multiple manufacturing sites to mitigate the risks of supply disruptions and
Providing capabilities and solutions for customer-specific requirements.

Competitive Cost Structure and Disciplined Capital Investment

There has been a continuous push throughout the entire semiconductor supply chain for lower cost solutions. A competitive cost structure and disciplined capital investment decisions enable us to provide cost-competitive solutions while achieving profitability and generating cash flow. Some of our cost control efforts have included: (1) increasing strip densities to drive higher throughput; (2) migrating from capillary underfill to molded underfill; (3) developing thinner and shorter gold wire solutions; (4) migrating from gold wire to copper wire for certain wirebond packages; (5) reducing test cycle times and (6) increasing labor productivity.



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We operate in a cyclical industry. During an industry downturn we seek to reduce our costs and drive greater factory and administrative efficiencies. Cost control efforts can include reducing labor costs by temporarily lowering compensation, reducing employee and contractor headcount, shortening work weeks and obtaining labor-related foreign government subsidies where available.

PACKAGING AND TEST SERVICES

Overview of Semiconductor Manufacturing Process

In general, the semiconductor manufacturing process consists of integrated circuit design, wafer fabrication, wafer probe, packaging and final test.

Integrated circuit design involves the laying out of electronic components, such as transistors, resistors, capacitors and the metallic interconnect of these components, to achieve the desired device functionality. Wafer fabrication is a multiple-step sequence of photolithographic and chemical processing steps during which the integrated circuits are gradually created on semiconductor material, typically a silicon wafer. Individual integrated circuits are generally known as a “chip” or “die”, and a single wafer will contain many die. Wafers are fabricated by two types of companies - IDMs which design and fabricate wafers using their own in-house manufacturing facilities, and contract foundries which manufacture wafers that are designed by fabless companies or other customers.

The packaging and test services we provide occur subsequent to wafer fabrication. The wafers that we receive from our customers are generally consigned to us; we do not own the consigned wafers or record their value in our financial statements. During wafer probe, each individual die is electrically tested, or probed, for defects. Packaging is the processing of bare die to facilitate electrical connections and heat dissipation and protect the die. The wafer is separated into individual die. Each good die is then assembled into a package that typically encapsulates the die for protection and creates the electrical connections used to connect the package to a printed circuit board, module or other part of the electronic device. In some packages, chips are attached to a substrate or leadframe carrier through wirebonding or flip chip interconnects and then encased in a protective material. Or, for a wafer-level package, the electrical interconnections are created directly on the surface of the die (while the wafer is still intact) so that the chip may be attached directly to other parts of an electronic device without a substrate or leadframe. The packages are then tested using sophisticated equipment to ensure that each packaged chip meets its design and performance specifications.

Packaging and Test Technologies and Processes

Our packages employ wirebond, flip chip and copper clip interconnect technologies. We use leadframe and substrate package carriers, and we perform a variety of test services.

Interconnect Technologies

Wirebond:  In packages that employ wirebond interconnect technology, the die is mounted face up on the package carrier and the interconnections between the die and package carrier are made through very fine gold, silver or copper wires which are attached from the bond pads of the die to the package carrier. Wirebonding is generally considered to be the most cost-effective and flexible interconnect technology and is used to assemble the majority of semiconductor packages.

Flip Chip:  In packages that employ flip chip interconnect technology, the interconnections between the die and package carrier are made through conductive “bumps” that are placed directly on the die surface utilizing a process called wafer bumping. The bumped die is then “flipped over” and placed face down, with the bumps connecting directly to the package carrier. Flip chip allows a higher number of interconnects than wirebond as it uses the entire surface area of the die, and sometimes the perimeter as well, instead of just the perimeter as used by most wirebond packages. Flip chip also provides enhanced thermal and electrical performance, and enables smaller die and thinner, smaller form factors (or physical package dimensions).

The wafer bumping process consists of preparing the wafer for bumping and forming or placing the bumps. Preparation may include cleaning, removing insulating oxides and providing a pad metallurgy that will protect the interconnections while making good mechanical and electrical connection between the bump and the wafer.


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Copper Clip: Copper clip interconnect technology uses a solid copper bridge or “clip” to connect the die to the package carrier. The clip allows a higher level of current flow than a wire and also provides a better method of heat transfer from the die. The clip is either spot welded, or more often re-flow soldered, to the die pads and the package carrier pads.

Package Carriers

Leadframe:  A leadframe is a miniature sheet of metal, generally made of copper and silver alloys, on which a pattern of electrical connections (or “leads”) has been cut. The leads are generally placed around the perimeter of the leadframe and are used to connect the package to the system board. The number of leads on an individual leadframe is limited as electrical shorting can occur if the leads are placed too close together.

Substrate:   A substrate is a laminate of multiple layers of epoxy resin, woven glass fibers and metal conductors. Bumps provide the electrical connection to the system board. The bumps are typically distributed evenly across the bottom surface of the substrate (called a “ball grid array” format). This allows greater distance between individual leads and a higher number of interconnects than leadframe packages.

Test Services

Amkor provides a complete range of semiconductor testing services including wafer testing or probe and final test. We offer a full range of test software, hardware, integration and product engineering services, and we support a range of business models and test capabilities. Substantially all of our test business is derived from testing packages that we assemble.

Wafer Test Services: Wafer test, also referred to as wafer probe, is performed after wafer fabrication or wafer bumping to screen out defective devices prior to packaging. We offer a range of wafer test coverage that can be tailored based on the cost and complexity of the die, the package and the product. These services range from coarse level screening for major defects all the way up to probing at high digital speeds and can include full radio frequency transmit and receive as well as testing at multiple temperatures. Wafer testing can also involve a range of wafer mapping and inspection operations.

Final Test Services: After the packaging process, final test is performed to ensure that the packaged device meets the customer’s requirements. Final test spans a range of rigor and complexity depending on the device and end market application. More rigorous types of final test include testing multiple times under different electrical and temperature conditions and before and after device reliability stresses, such as burn-in. In addition to electrical testing, specialized solutions are required for packages that also process non-electric stimuli.

The electrical tests are a mix of functional, structural and system-level tests depending on the customer’s requirements and cost and reliability parameters. The electrical test equipment we use includes commercially available automated test equipment, customized and proprietary system level test equipment and innovative types of low cost test equipment developed by Amkor.

Advanced Products and Mainstream Products

We offer a broad range of advanced and mainstream packaging and test services to our customers. We refer to our flip chip, wafer-level processing and related test services as “Advanced Products”, and our wirebond packaging and related test services as “Mainstream Products”. The following table sets forth, for the periods indicated, the amount of advanced and mainstream packaging and test net sales and the percentage of such net sales:
 
Year Ended December 31,
 
2013
 
2012
 
2011
 
(In millions, except percentage of net sales)
Advanced products
$
1,451

 
49.1
%
 
$
1,302

 
47.2
%
 
$
1,125

 
40.5
%
Mainstream products
1,505

 
50.9
%
 
1,458

 
52.8
%
 
1,651

 
59.5
%
Total net sales
$
2,956

 
100.0
%
 
$
2,760

 
100.0
%
 
$
2,776

 
100.0
%



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Advanced Products

Our advanced packages consist of flip chip chip scale packages, and flip chip ball grid array packages. These package families use flip chip interconnect technology to connect a die to a substrate package carrier.

Flip Chip Chip Scale Package (FC CSP) Products: FC CSP packages are small form factor packages where the substrate size is not much larger than the die itself. The size advantage provided by chip scale packaging technologies has made FC CSP the package of choice for a wide variety of applications that require very small form factors such as wireless handsets and mobile consumer electronic devices.

Flip chip stacked chip scale (FC SCSP) packages stack a second die on top of the original die in a FC CSP package. The top die is typically memory, and wirebond interconnects are used to attach it to the substrate. FC SCSP is frequently used to stack memory on top of digital baseband and applications processors for use in mobile devices.

We developed fine pitch copper pillar flip chip interconnect technology which creates interconnections at finer pitches using a packaging process to reduce the number of substrate layers to facilitate very thin packages. This innovative solution is also an enabling technology for 2.5D and 3D package stacking with TSVs.

Wafer-level chip scale packages (WL CSP) do not utilize a package carrier. The bumped wafer is singulated into individual die, and the wafer-level package is then attached directly to the system board. WL CSP offers one of the lowest total system costs, enabling higher semiconductor content while leveraging the smallest form factor and one of the highest performing, most reliable, semiconductor package platforms on the market today. We have seen significant growth in our WL CSP business, particularly for power management, radio frequency, and integrated connectivity applications.

Flip Chip Ball Grid Array (FC BGA) Products: FC BGA packages are large form factor substrate-based packages which are used where processing power and speed are needed, and small form factors are not required. Our FC BGA packages are assembled around state-of-the-art substrates. Utilizing multiple high density routing layers, laser drilled vias, and ultra-fine line and space metallization, FC BGA substrates have the highest routing density available. The variety of FC BGA package options allows package selection to be tailored to the specific thermal needs of the end product. We offer FC BGA packaging in a variety of product formats to fit a wide range of end application requirements, including networking, storage, computing and consumer applications.

Our Flip Chip Molded BGA (FCmBGA) packages utilize a molding compound that replaces traditional capillary underfill to interconnect larger die onto a substrate without the structural need for a lid or stiffening ring. This enables thinner packaging and improved thermal performance while reducing system cost.

Mainstream Packages

Our mainstream packages consist of leadframe packages, substrate-based wirebond packages and micro-electro-mechanical systems packages. These package families use wirebond interconnect technology to connect a die to a leadframe or substrate package carrier.

Leadframe Packages: Leadframe packages use wirebond or flip chip technology to interconnect a die to a leadframe package carrier. Leadframe packages are used in many electronic devices and remain the most practical and cost-effective solution for many low to medium pin count applications.

Traditional leadframe packages support a wide variety of device types and applications. Two of our most popular traditional leadframe package types are small outline integrated circuit and quad flat package, commonly known as “dual” and “quad” products, respectively, based upon the number of sides from which the leads extend. The traditional leadframe package family has evolved from “through hole design,” where the leads are plugged into holes on the circuit board to “surface mount design,” where the leads are soldered to the surface of the circuit board. We offer a wide range of lead counts and body sizes to satisfy variations in the size of customers’ semiconductor devices.



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Through a process of continuous engineering and customization, we have designed several leadframe package types that are thinner and smaller than traditional leadframe packages, and which have the ability to accommodate more leads on the perimeter of the package. These leadframe packages typically have superior thermal and electrical characteristics, which allow them to dissipate heat generated by high-powered semiconductor devices while providing enhanced electrical connectivity. We are developing increasingly smaller versions of these packages to keep pace with continually shrinking semiconductor device sizes and demand for miniaturization of portable electronic products. One of our more successful leadframe package offerings is the MicroLeadFrame family of quad flat no lead packages.

Power discrete devices use a leadframe as the package carrier and primarily use wirebond interconnect technology. However, power applications that require improved thermal and electrical performance will use packaging with copper clip interconnect technology.

Substrate-based Wirebond Packages: Substrate-based wirebond packages use wirebond technology to connect a die to a substrate. Some of our packages in this category include stacked chip scale packages (CSP), chip array ball grid array (BGA) packages and plastic ball grid array (PBGA) packages.

Stacked CSP technology enables the stacking of a wide range of different semiconductor devices to deliver high levels of silicon integration and area efficiency. Stacked CSP utilizes high density thin core substrates and advanced materials, along with leading-edge wafer thinning, die attach, and molding capabilities to stack multiple die on a substrate. Stacked CSP is ideal for memory, including NAND, NOR and DRAM memory, and mixed signal applications.

Chip array BGA packages offer a broad selection of ball array pitches, ball counts and body sizes, single and multi-die layouts, stacked die and passive component integration. They are applicable for a wide range of semiconductors requiring a smaller package size than conventional PBGAs or leadframe packages.

Plastic ball grid array packages are used in applications requiring higher pin count than leadframe packages, but typically have lower interconnect density than flip chip. PBGA packages are designed for low inductance, improved thermal operation and enhanced surface-mount technology ability. Custom performance enhancements, like ground and power planes, are also available.

Micro-Electro-Mechanical Systems (MEMS) Packages: MEMS are miniaturized mechanical and electro-mechanical sensors that can sense or manipulate the physical world. Examples of MEMS devices include microphones, accelerometers, gyrometers, magnetometers, humidity and temperature sensors and pressure sensors. MEMS are most typically created on silicon wafers but can also employ other substrate types as well. MEMS devices often require an extra fabrication process where the device wafer is bonded to a second wafer which effectively encapsulates the MEMS structure. This method leaves the device free to move within a vacuum or an inert gas atmosphere. However, applications such as microphones and pressure sensors require the MEMS structure to remain unencapsulated, requiring innovative cavity style packages.

System-in-Package (SiP) Modules: SiP modules contain one or more die plus passive components integrated into a single package to create a fully functioning system or subsystem. These modules use wirebond or flip chip interconnect technologies to connect the die to a substrate package carrier. The passive components include inductors, capacitors, resistors, filters and diplexers. SiP modules are used in mobile devices for components such as fingerprint sensors, radio frequency controllers, power amplifiers, GPS modules, Bluetooth modules, digital basebands and hard drive controllers.



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End Markets

The following table lists the end markets that use our products:
End Market
 
 
Applications
 
 
Package Type
 
 
 
 
 
 
 
Communications
 
 
Handsets (Cell Phones, Feature Phones, Smart Phones)
Tablets
Handheld Devices
Wireless LAN
 
 
Flip Chip Chip Scale Package
Stacked Chip Scale Package
Flip Chip Stacked Chip Scale Package
Wafer Level Chip Scale Package
MicroLeadFrame
ChipArray Ball Grid Array
Fine Pitch Copper Pillar Flip Chip Chip Scale Package
 
 
 
 
 
 
 
Consumer
 
 
Television
Set Top Boxes
Gaming
Portable Media
Digital Cameras
 
 
Flip Chip Ball Grid Array
Thin Quad Flat Pack
ChipArray Ball Grid Array
Digital Micromirror Device
MicroLeadFrame
Plastic Ball Grid Array
 
 
 
 
 
 
 
Networking
 
 
Servers
Routers
Switches
 
 
Flip Chip Ball Grid Array
Plastic Ball Grid Array
MicroLeadFrame
Thin Quad Flat Pack
ChipArray Ball Grid Array
 
 
 
 
 
 
 
Automotive and Industrial
 
 
Infotainment
Safety
Performance, Fuel Efficiency and Environmental Sustainability
Comfort, Aesthetics and Security
 
 
Small Outline Integrated Circuit
MicroLeadFrame
Plastic Ball Grid Array
Thin Quad Flat Pack
Thin Shrink Small Outline Package
Quad Flat Pack
 
 
 
 
 
 
 
Computing
 
 
Desk Top Computer
Laptop Computer
Notebook Computer
Netbook Computer
Hard Disk Drive
Printers and Other Peripherals
Computer Server
 
 
MicroLeadFrame
ChipArray Ball Grid Array
Thin Quad Flat Pack
Flip Chip Ball Grid Array
Small Outline Integrated Circuit
Stacked Chip Scale Package
Flip Chip Chip Scale Package

RELATIONSHIP WITH J-DEVICES CORPORATION

J-Devices Corporation is the largest provider of outsourced semiconductor packaging and test services in Japan with net sales of $0.8 billion in 2013. J-Devices' business covers a broad range of packaging and test services focused on the automotive, industrial and consumer end markets. The company's customers include some of the largest semiconductor companies in the world, such as Fujitsu Semiconductor Limited, Renesas Electronics Corporation and Toshiba Corporation.

J-Devices was formed in 2009 as a result of a joint venture between Amkor, Toshiba and J-Devices' predecessor, Nakaya Microdevices Corporation (NMD). As part of this transaction, J-Devices acquired certain assets and business, including technology development, of Toshiba's semiconductor packaging business. Since that time, J-Devices has experienced considerable growth through various acquisitions, including the purchase of three packaging and test facilities from Fujitsu in 2012 and the purchase of three additional packaging and test facilities in 2013 from Renesas.

In 2013, we completed the exercise of our option to increase our ownership interest in J-Devices from 30% to 60%. As a result of this transaction, J-Devices is now owned 60% by Amkor, 34% by the former shareholders of NMD and 6% by Toshiba. The governance provisions applicable to J-Devices restrict our ability to cause J-Devices to take certain actions without the consent of the other investors. Accordingly, we account for our investment in J-Devices using the equity method of accounting. We plan to exercise additional options to increase our ownership interest to 80% by 2016, at which time


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certain governance restrictions will lapse and we will begin consolidating J-Devices' results. We continue to work closely with J-Devices in a number of areas, including joint purchasing programs and joint technology development.

RESEARCH AND DEVELOPMENT

Our research efforts focus on developing new packaging solutions and test services, and improving the efficiency and capabilities of our existing production processes. We believe that technology development is one of the keys to success in the semiconductor packaging and test industry. By concentrating our research and development on our customers’ needs for innovative packages, increased performance and lower cost, we gain opportunities to enter markets early, capture market share and promote our new package offerings as industry standards. In addition, we leverage our research and development by licensing our leading edge technology, such as MicroLeadFrame, Fine Pitch Copper Pillar Flip Chip, TMV, Lead Free and Copper Pillar Bumping and FusionQuad.

Our areas for research and development include:
2.5D and 3D packaging;
Advanced flip chip packaging;
Advanced micro-electromechanical system packaging and testing;
Advanced Package-on-Package (PoP);
Copper Pillar bumping and packaging;
Copper wire interconnects;
Embedded Die / Fan Out technology;
Engineering and characterization tools;
High density laminate and leadframe packaging;
Manufacturing cost reductions;
Silicon Photonics;
Silver wirebond interconnects;
TMV technology;
TSV technology and
Wafer-level processing.
We have key development partners within our customer and supplier base. We work with our partners and allocate our resources to develop applications that have promising potential for a healthy return on investment.

As of December 31, 2013, we had approximately 400 employees engaged in research and development activities. In 2013, 2012 and 2011, we incurred $64.6 million, $54.1 million and $50.4 million, respectively, of research and development expense.



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MARKETING AND SALES

Our marketing and sales offices are located throughout Asia, Europe and North America. Our support personnel manage and promote our packaging and test services and provide key customer and technical support. To provide comprehensive sales and customer service, we typically assign our customers a direct support team consisting of an account manager, technical program manager, test program manager and both field and factory customer support representatives. We also support our largest multinational customers from multiple office locations to ensure that we are aligned with their global operational and business requirements.

Our direct support teams are further supported by an extended staff of product, process, quality and reliability engineers, as well as marketing and advertising specialists, information systems technicians and factory personnel. Together, these direct and extended support teams deliver an array of services to our customers. These services include:
Managing and coordinating ongoing manufacturing activity;
Providing information and expert advice on our portfolio of packaging and test services and related trends;
Managing the start-up of specific packaging and test programs;
Working to improve our customers’ time-to-market;
Providing a continuous flow of information to our customers regarding products and programs in process;
Partnering with customers on design solutions;
Researching and assisting in the resolution of technical and logistical issues;
Aligning our technologies and research and development activities with the needs of our customers and OEMs;
Providing guidance and solutions to customers in managing their supply chains;
Driving industry standards;
Providing design and simulation services to ensure package reliability and
Collaborating with our customers on continuous quality improvement initiatives.
Further, we implement direct electronic links with our customers to:
Achieve near real time and automated communications of order fulfillment information, such as inventory control, production schedules and engineering data, including production yields, device specifications and quality indices and
Connect our customers to our sales and marketing personnel world-wide and to our factories.

SEASONALITY

Our sales have generally been higher in the second half of the year than in the first half due to the effect of consumer buying patterns in the U.S., Europe and Asia and the timing of flagship mobile device launches. In addition, semiconductor companies generally reduce their production during the holidays at the end of December which results in a decrease in packaging and test services during the first quarter.

CUSTOMERS

As of December 31, 2013, we had approximately 200 customers, including many of the largest semiconductor companies in the world. Our ten largest customers accounted for 62.9% of our net sales in 2013. Qualcomm Incorporated and Toshiba each accounted for more than 10% of our net sales in 2013.



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MATERIALS AND EQUIPMENT

Materials

Our materials are used primarily for packaging activities. Our packaging operations depend upon obtaining adequate supplies of materials on a timely basis. The principal materials used in our packaging process are leadframes, laminate substrates, gold and copper wire, mold compound, epoxy, tubes and trays. The silicon wafer is generally consigned from the customer. We do not take ownership of the customer consigned wafer, and title and risk of loss remains with the customer for these materials. Test materials constitute a very small portion of our total test cost. We purchase materials based on customer forecasts, and our customers are generally responsible for any unused materials which we purchased based on such forecasts.

We obtain the materials required for packaging services from various suppliers. We source most of our materials, including critical materials such as leadframes, laminate substrates and gold wire, from a limited group of suppliers. We work closely with our primary material suppliers to ensure that materials are available and delivered on time and, we also negotiate world-wide pricing agreements with our major suppliers to take advantage of the scale of our operations.

Equipment

Our ability to meet the changing demand from our customers for manufacturing capacity depends upon obtaining packaging and test equipment in a timely manner. We work closely with our main equipment suppliers to coordinate the ordering and delivery of equipment to meet our expected capacity needs.

The primary types of equipment used in providing our packaging services are wirebonders and die bonders. In addition, we maintain a variety of other packaging equipment, including mold, singulation, die attach, ball attach and wafer backgrind, along with numerous other types of manufacturing equipment. A substantial portion of our packaging equipment base can generally be used and adapted to support the manufacture of many of our packages through the use of relatively low cost tooling, although equipment used in advanced packaging can be more difficult to redeploy than equipment used in traditional wirebond packaging.

We also purchase wafer bumping equipment to facilitate our flip chip and wafer level packaging services. Wafer bump equipment includes sputter and spin coaters, electroplating equipment, reflow ovens and other types of equipment. This equipment tends to have longer lead times for order and installation than other packaging equipment and is sold in relatively larger increments of capacity.

The primary equipment used in the testing process includes testers, handlers and probers. Handlers are used to transfer individual or small groups of packaged integrated circuits to a tester. Test equipment is generally a more capital intensive portion of the process and tends to have longer delivery lead times than most types of packaging equipment. We focus our capital expenditures on standardized tester platforms in order to maximize test equipment utilization where possible.

ENVIRONMENTAL MATTERS

The semiconductor packaging process uses chemicals, materials and gases and generates byproducts that are subject to extensive governmental regulations. For example, we produce liquid waste when semiconductor wafers are diced into chips with the aid of diamond saws, then cooled with running water. In addition, semiconductor packages have historically utilized metallic alloys containing lead (Pb) within the interconnect terminals typically referred to as leads, pins or balls. The usage of lead (Pb) has decreased over the past few years, as we have ramped volume production of alternative lead (Pb)-free processes. Our operations are subject to numerous laws and regulations governing the protection of the environment, disposal of waste, discharges into water, emissions into the atmosphere and the protection of employee health and safety. Future regulations may impose stricter environmental requirements on the semiconductor packaging and test industry and may require additional capital investment.



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We are engaged in a continuing program to assure compliance with federal, state and local environmental laws and regulations. We do not expect that capital expenditures or other costs attributable to compliance with environmental laws and regulations will have a material adverse effect on our business, liquidity, results of operations, financial condition or cash flows.

COMPETITION

The outsourced semiconductor packaging and test market is very competitive. We face substantial competition from established packaging and test service providers primarily located in Asia, including companies with significant manufacturing capacity, financial resources, research and development operations, marketing and other capabilities. These companies include Advanced Semiconductor Engineering, Inc., Siliconware Precision Industries Co., Ltd. and STATS ChipPAC Ltd.
Such companies also have developed relationships with most of the world’s largest semiconductor companies, including current or potential customers of Amkor. We also compete with the internal semiconductor packaging and test capabilities of many of our customers. Our IDM customers continually evaluate the attractiveness of outsourced services against their own in-house packaging and test services and at times may decide to shift some or all of their outsourced packaging and test services to internally sourced capacity. We also compete with companies (including semiconductor foundries) that provide wafer bumping and other advanced packaging solutions that compete with our packaging and test services. In addition, we compete with companies that offer only test services and not packaging.

The principal elements of competition in the semiconductor packaging and test services market include:
technical competence;
quality;
price;
breadth of packaging and test services offered, including turnkey services;
new package and test design, technology innovation and implementation;
cycle times;
customer service and
available capacity and ability to invest in capacity, geographic location and scale of manufacturing.
We believe that we generally compete favorably with respect to each of these elements.

INTELLECTUAL PROPERTY

We maintain an active program to protect and derive value from our investment in technology and the associated intellectual property rights. Intellectual property rights that apply to our various products and services include patents, copyrights, trade secrets and trademarks. We have filed and obtained a number of patents in the U.S. and abroad, and their durations vary depending on the jurisdiction in which each patent is filed. Although our patents are an important element of our intellectual property strategy as a whole, we are not materially dependent on any one patent or any one technology. We expect to continue to file patent applications when appropriate to protect our proprietary technologies, but we cannot assure you that we will receive patents from pending or future applications. In addition, any patents we obtain may be challenged, invalidated or circumvented and may not provide meaningful protection or other commercial advantage to us.

We also protect certain details about our processes, products and strategies as trade secrets by maintaining the confidentiality of the information we believe provides us with a competitive advantage. We have ongoing programs designed to maintain the confidentiality of such information. Further, to distinguish our products from our competitors’ products, we have obtained certain trademarks and service marks and may promote our particular brands through advertising and other marketing techniques.



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EMPLOYEES

As of December 31, 2013, we had approximately 20,900 full-time employees. Of the total employee population, approximately 15,400 were engaged in manufacturing services, 3,300 were engaged in manufacturing support, 400 were engaged in research and development, 300 were engaged in marketing and sales and 1,500 were engaged in administration, business management and finance. We believe that our relations with our employees are good, and we have not experienced a work stoppage in any of our factories. Our employees in Europe, the Philippines, Taiwan and the U.S. are not represented by any union. Certain employees at our factories in China, Japan, Korea and Malaysia are members of a union, and we operate subject to collective bargaining agreements that we have entered into with the unions in Japan, Korea and Malaysia.

Item 1A.
Risk Factors

The factors discussed below are cautionary statements that identify important factors and risks that could cause actual results to differ materially from those anticipated by the forward-looking statements contained in this report. For more information regarding the forward-looking statements contained in this report, see the Table of Contents of this Annual Report on Form 10-K. You should carefully consider the risks and uncertainties described below, together with all of the other information included in this report, in considering our business and prospects. The risks and uncertainties described below are not the only ones facing Amkor. Additional risks and uncertainties not presently known to us may also impair our business operations. The occurrence of any of the following risks could affect our business, liquidity, results of operations, financial condition or cash flows.

Dependence on the Highly Cyclical Semiconductor Industry — We Operate in Volatile Industries and Industry Downturns and Declines in Global Economic and Financial Conditions Could Harm Our Performance.

Our business is impacted by market conditions in the semiconductor industry, which is cyclical by nature and impacted by broad economic factors, such as world-wide gross domestic product and consumer spending. The semiconductor industry has experienced significant and sometimes sudden and prolonged downturns in the past. For example, the financial crisis and global recession in 2008 and 2009 resulted in a downturn in the semiconductor industry that adversely affected our business and results of operations during those periods. The economic recovery since that time has been slow and uneven.

Since our business is, and will continue to be, dependent on the requirements of semiconductor companies for outsourced packaging and test services, any downturn in the semiconductor industry or any other industry that uses a significant number of semiconductor devices, such as consumer electronic products, telecommunication devices or computing devices, could have a material adverse effect on our business and operating results. During downturns we have experienced, among other things, reduced demand, excess capacity and reduced sales. It is difficult to predict the timing, strength or duration of any economic slowdown or subsequent economic recovery, which, in turn, makes it more challenging for us to forecast our operating results, make business decisions and identify risks that may affect our business, sources and uses of cash, financial condition and results of operations. Additionally, if industry conditions deteriorate, we could suffer significant losses, as we have in the past, which could materially impact our business, liquidity, results of operations, financial condition and cash flows.

Also, the action or inaction of the U.S. government relating to federal income tax increases, the federal debt ceiling, the federal deficit and government spending restrictions or shutdowns, may adversely affect consumer demand and economic growth in the U.S. and globally, which may harm the semiconductor industry and our business.

Fluctuations in Operating Results and Cash Flows — Our Operating Results and Cash Flows Have Varied and May Vary Significantly as a Result of Factors That We Cannot Control.

Many factors, including the impact of adverse economic conditions, could have a material adverse effect on our net sales, gross profit, operating results and cash flows, or lead to significant variability of quarterly or annual operating results. Our profitability and ability to generate cash from operations is principally dependent upon demand for semiconductors, the utilization of our capacity, semiconductor package mix, the average selling price of our services, our ability to manage our capital expenditures in response to market conditions and our ability to control our costs including labor, material, overhead and financing costs.



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Our net sales, gross profit, operating income and cash flows have historically fluctuated significantly from quarter to quarter as a result of many of the following factors, over which we have little or no control and which we expect to continue to impact our business:
fluctuation in demand for semiconductors and conditions in the semiconductor industry generally, as well as by specific customers, such as inventory reductions by our customers impacting demand in key markets;
changes in our capacity and capacity utilization rates;
changes in average selling prices which can occur quickly due to the absence of long term agreements on price;
changes in the mix of the semiconductor packaging and test services that we sell;
evolving packaging and test technology and potential difficulties in developing and transitioning to new technologies;
absence of backlog, the short-term nature of our customers’ commitments and the impact of these factors, including the possible delay, rescheduling and cancellation of large orders, or the timing and volume of orders relative to our production capacity;
changes in costs, quality, availability and delivery times of raw materials, components and equipment;
changes in labor costs to perform our services;
wage inflation and fluctuations in commodity prices, including gold, copper and other precious metals;
the timing of expenditures in anticipation of future orders;
changes in effective tax rates;
the availability and cost of financing;
intellectual property transactions and disputes;
high leverage and restrictive covenants;
warranty and product liability claims and the impact of quality excursions and customer disputes and returns;
costs associated with legal claims, indemnification obligations, judgments and settlements;
international events, political instability, civil disturbances or environmental or natural events, such as earthquakes, that impact our operations;
pandemic illnesses that may impact our labor force and our ability to travel;
costs of acquisitions and divestitures, difficulties integrating acquisitions, the failure of our joint ventures to operate in accordance with business plans and fluctuations in the results of investments accounted for using the equity method;
our ability to attract and retain qualified personnel to support our global operations;
fluctuations in foreign exchange rates;
fluctuations in our manufacturing yields;
dependence on key customers or concentration of customers in certain market segments, such as mobile communications and
restructuring charges, asset write-offs and impairments.
It is often difficult to predict the impact of these factors upon our results for a particular period. The downturn in the global economy and the semiconductor industry in 2009 increased the risks associated with the foregoing factors as customer


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forecasts became more volatile, and there was less visibility regarding future demand and significantly increased uncertainty regarding the economy, credit markets and consumer demand. The slow rate of economic growth in the U.S. and elsewhere and economic uncertainty worldwide could continue to cause volatility in customer forecasts and reduce our visibility regarding future demand in the semiconductor industry. These factors may have a material and adverse effect on our business, liquidity, results of operations, financial condition and cash flows or lead to significant variability of quarterly or annual operating results. In addition, these factors may adversely affect our credit ratings which could make it more difficult and expensive for us to raise capital and could adversely affect the price of our securities.

Absence of Backlog — The Lack of Contractually Committed Customer Demand May Adversely Affect Our Sales.

Our packaging and test business does not typically operate with any material backlog. Our quarterly net sales from packaging and test services are substantially dependent upon our customers’ demand in that quarter. None of our customers have committed to purchase any significant amount of packaging or test services or to provide us with binding forecasts of demand for packaging and test services for any future period, in any material amount. In addition, our customers often reduce, cancel or delay their purchases of packaging and test services for a variety of reasons including industry-wide, customer-specific and Amkor-specific reasons. This makes it difficult for us to forecast our capacity utilization and net sales in future periods. Since a large portion of our costs is fixed and our expense levels are based in part on our expectations of future sales, we may not be able to adjust costs in a timely manner to compensate for any sales shortfall. If we are unable to adjust costs in a timely manner, our margins, operating results, financial condition and cash flows would be adversely affected.

High Fixed Costs — Due to Our High Percentage of Fixed Costs, We Will Be Unable to Maintain Our Gross Margin at Past Levels if We Are Unable to Achieve Relatively High Capacity Utilization Rates.

Our operations are characterized by relatively high fixed costs. Our profitability depends in part not only on pricing levels for our packaging and test services, but also on the efficient utilization of our human resources and packaging and test equipment. Increases or decreases in our capacity utilization can significantly affect gross margins. In periods of low demand, we experience relatively low capacity utilization in our operations, which leads to reduced margins during that period. For example, we experienced lower than optimum utilization in late 2008 and in 2009 due to a decline in world-wide demand for our packaging and test services which impacted our gross margin. Transitions between different packaging technologies, such as the transition from gold wirebond to flip chip and copper wirebond packages, can also impact our capacity utilization if we do not efficiently redeploy our equipment for other packaging and test opportunities. For example, in 2011 the migration of some customer demand from wirebond to flip chip packages resulted in under-utilized wirebond assets which negatively impacted our capacity utilization and gross margin. We cannot assure you that we will be able to achieve consistently high capacity utilization, and if we fail to do so, our gross margins may decrease. If our gross margins decrease, our business, liquidity, results of operations, financial condition and cash flows could be materially adversely affected.

In addition, our fixed operating costs have increased in recent years in part as a result of our efforts to expand our capacity through significant capital expenditures. Forecasted customer demand for which we have made capital investments may not materialize, especially if industry conditions deteriorate. As a result, our sales may not adequately cover fixed costs resulting in reduced profit levels or causing significant losses, both of which may adversely impact our business, liquidity, results of operations, financial condition and cash flows.

Guidance — Our Failure to Meet Our Guidance or Analyst Projections Could Adversely Impact the Trading Prices of Our Securities.

We periodically provide guidance to investors with respect to certain financial information for future periods. Securities analysts also periodically publish their own projections with respect to our future operating results. As discussed above under “Fluctuations in Operating Results and Cash Flows — Our Operating Results and Cash Flows Have Varied and May Vary Significantly as a Result of Factors That We Cannot Control,” our operating results and cash flows vary significantly and are difficult to accurately predict. Volatility in customer forecasts and fluctuations in global consumer demand make it particularly difficult to predict future results. To the extent we fail to meet or exceed our own guidance or the analyst projections for any reason, the trading prices of our securities may be adversely impacted. Moreover, even if we do meet or exceed that guidance or those projections, if analysts and investors do not react favorably, or if analysts were to discontinue providing coverage of our company, the trading prices of our securities may be adversely impacted.


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Declining Average Selling Prices — Historically There Has Been Downward Pressure on the Prices of Our Packaging and Test Services.

Prices for packaging and test services have generally declined over time, and sometimes prices can change significantly in relatively short periods of time. We expect downward pressure on average selling prices for our packaging and test services to continue in the future. If we are unable to offset a decline in average selling prices by developing and marketing new packages with higher prices, reducing our purchasing costs, recovering more of our material cost increases from our customers and reducing our manufacturing costs, our business, liquidity, results of operations, financial condition and cash flows could be materially adversely affected.

Decisions by Our Integrated Device Manufacturer Customers to Curtail Outsourcing May Adversely Affect Our Business.

Historically, we have been dependent on the trend in outsourcing of packaging and test services by IDMs. Our IDM customers continually evaluate the need for outsourced services against their own in-house packaging and test services. As a result, at any time and for a variety of reasons, IDMs may decide to shift some or all of their outsourced packaging and test services to internally sourced capacity.

The reasons IDMs may shift their outsourced business to internal capacity include:
their desire to realize higher utilization of their existing packaging and test capacity, especially during downturns in the semiconductor industry;
their unwillingness to disclose proprietary technology;
their possession of more advanced packaging and test technologies and
the guaranteed availability of their own packaging and test capacity.
In addition, to the extent we limit capacity commitments for certain customers, these customers may increase their level of in-house packaging and test capabilities, which could make it more difficult for us to regain their business when we have available capacity.

In a downturn in the semiconductor industry, IDMs could respond by shifting some or all outsourced packaging and test services to internally serviced capacity on a short term basis. Also, the IDMs could curtail or reverse the trend of outsourcing packaging and test services. If we experience a significant loss of IDM business, it could have a material adverse effect on our business, liquidity, results of operations, financial condition and cash flows, especially during a prolonged industry downturn.

Our Substantial Indebtedness Could Adversely Affect Our Financial Condition and Prevent Us from Fulfilling Our Obligations.

We have a significant amount of indebtedness, and the terms of the agreements governing our indebtedness allow us and our subsidiaries to incur more debt, subject to certain limitations. As of December 31, 2013, our total debt balance was $1,652.7 million, of which $61.4 million was classified as a current liability and $320.0 million was collateralized indebtedness at our subsidiaries. We may consider investments in joint ventures, increased capital expenditures or acquisitions which may increase our indebtedness. If new debt is added to our consolidated debt level, the related risks that we face could intensify.

Our substantial indebtedness could:
make it more difficult for us to satisfy our obligations with respect to our indebtedness, including our obligations under our indentures to purchase notes tendered as a result of a change in control of Amkor;
increase our vulnerability to general adverse economic and industry conditions;
limit our ability to fund future working capital, capital expenditures, research and development and other business opportunities, including joint ventures and acquisitions;


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require us to dedicate a substantial portion of our cash flow from operations to service payments of interest and principal on our debt thereby reducing the availability of our cash flow to fund future working capital, capital expenditures, research and development expenditures and other general corporate requirements;
increase the volatility of the price of our common stock;
limit our flexibility to react to changes in our business and the industry in which we operate;
place us at a competitive disadvantage to any of our competitors that have less debt;
limit, along with the financial and other restrictive covenants in our indebtedness, among other things, our ability to borrow additional funds;
limit our ability to refinance our existing indebtedness, particularly during periods of adverse credit market conditions when refinancing indebtedness may not be available under interest rates and other terms acceptable to us or at all and
increase our cost of borrowing.

We May Have Difficulty Funding Liquidity Needs.

We assess our liquidity based on our current expectations regarding sales, operating expenses, capital spending and debt service requirements. Our liquidity is affected by, among other things, the performance of our business, our capital expenditure and other investment levels and our ability to repay debt out of our operating cash flows or with the proceeds of debt or equity financings.

We operate in a capital intensive industry. We had capital expenditures of $566.3 million in 2013. Servicing our current and future customers requires that we incur significant operating expenses and continue to make significant capital expenditures and other investments, which are generally made in advance of the related revenues and without any firm customer commitments. Ultimately the actual amount of our capital expenditures for 2014 and thereafter may vary materially and will depend on several factors. These factors include, among others, the amount, timing and implementation of our capital projects, including those under review and not yet planned, the performance of our business, economic and market conditions, the cash needs and investment opportunities for the business, the need for additional capacity and facilities and the availability of cash flows from operations or financing.

In addition, we have a significant level of debt, which requires significant scheduled principal and interest payments in the coming years. The sources funding our operations, including making capital expenditures and other investments and servicing principal and interest obligations with respect to our debt, are cash flows from our operations, existing cash and cash equivalents, borrowings under available debt facilities, or proceeds from any additional debt or equity financing.

The health of the worldwide banking system and capital markets affects our liquidity. If financial institutions that have extended credit commitments to us are adversely affected by the conditions of the U.S. and international banking system and capital markets, they may refuse or be unable to fund borrowings under their credit commitments to us. Volatility in the banking system and capital markets could also make it difficult or more expensive for us to maintain our existing credit facilities or refinance our debt.

In addition, there is a risk that we could fail to generate the necessary net income or operating cash flows to meet the funding needs of our business due to a variety of factors, including the other factors discussed in this "Risk Factors" section. If we fail to generate the necessary cash flows or we are unable to access the capital markets when needed, our liquidity may be adversely impacted.

Restrictive Covenants in the Indentures and Agreements Governing Our Current and Future Indebtedness and Our Joint Venture Agreements Could Restrict Our Operating Flexibility.

The indentures and agreements governing our existing debt, and debt we may incur in the future, contain, or may contain, affirmative and negative covenants that materially limit our ability to take certain actions, including our ability to incur debt, pay dividends and repurchase stock, make certain investments and other payments, enter into certain mergers and


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consolidations, engage in sale leaseback transactions and encumber and dispose of assets. In addition, our future debt agreements may contain financial covenants and ratios.

The breach of any of these covenants by us or the failure by us to meet any of the financial ratios or conditions could result in a default under any or all of such indebtedness. If a default occurs under any such indebtedness, all of the outstanding obligations thereunder could become immediately due and payable, which could result in a default under our other outstanding debt and could lead to an acceleration of obligations related to other outstanding debt. The existence of such a default or event of default could also preclude us from borrowing funds under our revolving credit facilities. Our ability to comply with the provisions of the indentures, credit facilities and other agreements governing our outstanding debt and indebtedness we may incur in the future can be affected by events beyond our control and a default under any debt instrument, if not cured or waived, could have a material adverse effect on us.

Also, our ability to sell our joint venture investments or for our joint ventures to pay dividends, make distributions, provide loans or make other payments to us may be restricted by our joint venture agreements. As a result, we may not be able to access the cash flow of our joint ventures or realize a cash return on our joint venture investment. For example, the governance provisions of our joint venture with J-Devices require the consent of the joint venture partners to pay dividends or for us to sell our investment.

We Have Significant Severance Plan Obligations Associated With Our Manufacturing Operations in Korea Which Could Reduce Our Cash Flow and Negatively Impact Our Financial Condition.

We sponsor an accrued severance plan for our Korean subsidiary, under which we have an accrued liability of $145.1 million as of December 31, 2013. Existing tax laws in Korea limit our ability to deduct severance expenses associated with the current plan. These limitations are designed to encourage companies to migrate to a defined contribution or defined benefit plan. If we adopt a new plan, we may fund a significant portion of the existing liability, which could have a material adverse effect on our liquidity, financial condition and cash flows. If we do not adopt a new plan, our ability to deduct accrued severance will continue to be limited, and as a result we will have to pay higher taxes, which could adversely affect our liquidity, financial condition and cash flows.

Under the existing Korean plan, to the extent eligible employees are terminated, our Korean subsidiary would be required to make lump-sum severance payments on behalf of these eligible employees based on their length of service, seniority and rate of pay at the time of termination. Since our severance plan obligation is significant, in the event of a significant layoff or other reduction in our labor force in Korea, payments under the plan could have a material adverse effect on our liquidity, financial condition and cash flows. See Note 15 to our Consolidated Financial Statements in Part II, Item 8 to this Annual Report on Form 10-K.

If We Fail to Maintain an Effective System of Internal Controls, We May Not be Able to Accurately Report Financial Results or Prevent Fraud.

Effective internal controls are necessary to provide reliable financial reports and to assist in the effective prevention of fraud. We must annually evaluate our internal procedures to satisfy the requirements of Section 404 of the Sarbanes-Oxley Act of 2002, which requires management and our independent registered public accounting firm to assess the effectiveness of internal control over financial reporting.

Internal controls may not prevent or detect misstatements because of their inherent limitations, including the possibility of human error, the circumvention or overriding of controls, fraud or corruption. Therefore, even effective internal controls can provide only reasonable assurance with respect to the preparation and fair presentation of financial statements. In addition, projections of any evaluation of effectiveness of internal controls to future periods are subject to the risk that the internal controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

As previously reported, we are implementing a new enterprise resource planning (“ERP”) system in a multi-year program on a world-wide basis. We have recently implemented several significant ERP modules and expect to implement additional ERP modules in the future. In addition, we are implementing a new shop floor management system in certain of our factories. The implementation of the ERP and shop floor systems represents a change in our internal control over financial reporting.


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Although we continue to monitor and assess our internal controls in the new ERP system environment and the shop floor system as changes are made and new modules are implemented, there is a risk that deficiencies may occur that could constitute significant deficiencies or in the aggregate a material weakness.

In addition, on July 31, 2013, we completed our acquisition of Amkor Technology Malaysia Sdn. Bhd. We are continuing to integrate the acquired operations into our overall internal control over financial reporting. Although we have extended our oversight and monitoring processes that support internal control over financial reporting to include the acquired operations, there is a risk that deficiencies may occur that could constitute significant deficiencies or in the aggregate a material weakness.

If we fail to remedy any deficiencies or maintain the adequacy of our internal controls, we could be subject to regulatory scrutiny, civil or criminal penalties or shareholder litigation. In addition, failure to maintain adequate internal controls could result in financial statements that do not accurately reflect our operating results or financial condition.

We Face Warranty Claims, Product Return and Liability Risks, the Risk of Economic Damage Claims and the Risk of Negative Publicity if Our Packages Fail.

Our packages are incorporated into a number of end products, and our business is exposed to warranty claims, product return and liability risks, the risk of economic damage claims and the risk of negative publicity if our packages fail.

We receive warranty claims from our customers which occur from time to time in the ordinary course of our business. If we were to experience an unusually high incidence of warranty claims, we could incur significant costs and our business could be adversely affected. In addition, we are exposed to the product and economic liability risks and the risk of negative publicity affecting our customers. Our sales may decline if any of our customers are sued on a product liability claim. We also may suffer a decline in sales from the negative publicity associated with such a lawsuit or with adverse public perceptions in general regarding our customers’ products. Further, if our packages are delivered with impurities or defects, we could incur additional development, repair or replacement costs or suffer other economic losses, and our credibility and the market’s acceptance of our packages could be harmed.

Risks Associated With International Operations — We Depend on Our Factories and Operations in China, Japan, Korea, Malaysia, the Philippines and Taiwan. Many of Our Customers’ and Vendors’ Operations Are Also Located Outside of the U.S.

We provide packaging and test services through our factories and other operations located in China, Japan, Korea, Malaysia, the Philippines and Taiwan. Substantially all of our property, plant and equipment is located outside of the United States. Moreover, many of our customers’ and the vendors in our supply chain are located outside the U.S.  The following are some of the risks we face in doing business internationally:
changes in consumer demand resulting from deteriorating conditions in local economies;
regulations and policies imposed by U.S. or foreign governments, such as tariffs, customs, duties and other restrictive trade barriers, antitrust and competition, tax, currency and banking, privacy, labor, environmental, health and safety;
the payment of dividends and other payments by non-U.S. subsidiaries may be subject to prohibitions, limitations or taxes in local jurisdictions;
fluctuations in currency exchange rates;
political and social conditions, such as civil unrest and terrorism;
disruptions or delays in shipments caused by customs brokers or government agencies;
difficulties in attracting and retaining qualified personnel and managing foreign operations, including foreign labor disruptions;
difficulty in enforcing contractual rights and protecting our intellectual property rights;


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potentially adverse tax consequences resulting from tax laws in the U.S and in foreign jurisdictions in which we operate and
local business and cultural factors that differ from our normal standards and practices, including business practices that we are prohibited from engaging in by the Foreign Corrupt Practices Act (FCPA) and other anti-corruption laws and regulations.
In particular, we have significant facilities and other investments in South Korea, and there have been heightened security concerns in recent years stemming from North Korea’s nuclear weapon and long-range missile programs as well as its military actions in the region. Furthermore, there has been a history of conflict and a recent rise in tensions among other countries in the region.

We Face Risks in Connection with the Continuing Development and Implementation of Changes to, and Maintenance and Security of, Our Management Information Systems.

We depend on our management information systems for many aspects of our business. Some of our key software has been developed by our own programmers, and this software may not be easily integrated with other software and systems. Our systems may be susceptible to damage, disruptions or shutdowns due to failures during the process of upgrading, replacing or maintaining software, databases or components thereof, power outages, hardware failures, computer viruses, attacks by computer hackers, telecommunication failures, user errors, malfeasance or catastrophic events. In addition, security breaches could result in unauthorized disclosure of confidential information. We have made and continue to make significant investments to implement and evolve our management information systems. In addition, we are implementing a new shop floor system in certain of our factories. In July 2013, we acquired a factory in Malaysia, and have begun to integrate its management information systems into our existing systems and processes. We face risks in connection with current and future projects to install or integrate new management information systems or upgrade our existing systems. These risks include:
we may face delays in the design and implementation of the system;
the cost of the systems may exceed our plans and expectations and
disruptions resulting from the implementation or integration of the systems may impact our ability to process transactions and delay shipments to customers, impact our results of operations or financial condition or harm our control environment.
Our business could be materially and adversely affected if our management information systems are disrupted or if we are unable to successfully install new systems or improve, upgrade, integrate or expand upon our existing systems.

We Face Risks Trying to Attract and Retain Qualified Employees to Support Our Operations.

Our success depends to a significant extent upon the continued service of our key senior management, sales and technical personnel, any of whom may be difficult to replace. Competition for qualified employees is intense, and our business could be adversely affected by the loss of the services of any of our existing key personnel, including senior management, as a result of competition or for any other reason. We do not have employment agreements with our key employees, including senior management or other contracts that would prevent our key employees from working for our competitors in the event they cease working for us. We cannot assure you that we will be successful in our efforts to retain key employees or in hiring and properly training sufficient numbers of qualified personnel and in effectively managing our growth. Our inability to attract, retain, motivate and train qualified new personnel could have a material adverse effect on our business.

Difficulties Consolidating and Integrating Our Operations - We Face Challenges as We Integrate Diverse Operations.

We have experienced, and expect to continue to experience, change in the scope and complexity of our operations resulting primarily from existing and future facility consolidations, strategic acquisitions, joint ventures and other partnering arrangements. Some of the risks from these activities include those associated with the following:
increasing the scope, geographic diversity and complexity of our operations;


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conforming an acquired company's standards, practices, systems and controls with our operations;
increasing complexity from combining recent acquisitions of an acquired business;
unexpected losses of key employees or customers of an acquired business; other difficulties in the assimilation of acquired operations, technologies or products and
diversion of management and other resources from other parts of our operations and adverse effects on existing business relationships with customers.
In connection with these activities, we may:
use a significant portion of our available cash;
issue equity securities, which may dilute the ownership of current stockholders;
incur substantial debt;
incur or assume known or unknown contingent liabilities and
incur large, immediate accounting write offs and face antitrust or other regulatory inquiries or actions.
For example, the businesses we have acquired had, at the time of acquisition, multiple systems for managing their own production, sales, inventory and other operations. Migrating these businesses to our systems typically is a slow, expensive process requiring us to divert significant resources from other parts of our operations. We may continue to face these challenges in the future. For example, on July 31, 2013, we completed the purchase of Amkor Technology Malaysia Sdn. Bhd. We have also exercised our option to increase our ownership interest in J-Devices from 30% to 60%, which we completed in April 2013 and we have additional options to increase our ownership over time to as much as 80%. We have begun integration of the recently acquired operation in Malaysia, and we anticipate that in the future we will need to integrate J-Devices with our existing operations. In addition, J-Devices will need to integrate with its operations the acquisitions it has recently completed. Furthermore, the governance provisions applicable to J-Devices restrict our ability to cause J-Devices to take certain actions without the consent of the other investors. As a result of the risks discussed above, the anticipated benefits of the increase in our investment in J-Devices or other future acquisitions, consolidations and partnering arrangements may not be fully realized, if at all, and these activities could have a material adverse effect on our business, financial condition and results of operations.

Dependence on Materials and Equipment Suppliers — Our Business May Suffer If the Cost, Quality or Supply of Materials or Equipment Changes Adversely Including Any Disruption that May Occur in the Supply of Certain Metals due to New Regulations Regarding the Supply of Minerals From Conflict Zones.

We obtain from various vendors the materials and equipment required for the packaging and test services performed by our factories. We source most of our materials, including critical materials such as leadframes, laminate substrates and gold wire, from a limited group of suppliers. A disruption to the operations of one or more of our suppliers could have a negative impact on our business. For example, the severe earthquake and tsunami in Japan in 2011 had a significant adverse effect on the electronic industry supply chain impacting the supply of specialty chemicals, substrates, silicon wafers, equipment and other supplies to the electronics industry. In addition, we purchase the majority of our materials on a purchase order basis. Our business may be harmed if we cannot obtain materials and other supplies from our vendors in a timely manner, in sufficient quantities, at acceptable quality or at competitive prices. Some of our customers are also dependent on a limited number of suppliers for certain materials and silicon wafers. Shortages or disruptions in our customers' supply channels could have a material adverse effect on our business, financial condition, results of operations and cash flows. For example, the shortage in the supply of 28 nanometer wafers to some of our customers in 2012 delayed or otherwise adversely impacted the demand for certain of our advanced packaging and test services.

Rules adopted by the Securities and Exchange Commission implementing the Dodd-Frank Wall Street Reform and Consumer Protection Act impose diligence and disclosure requirements regarding the use of certain minerals originating from the conflict zones of the Democratic Republic of Congo and adjoining countries in our products. Industry associations and some of our customers are also implementing initiatives to improve transparency and accountability concerning the supply of these materials and, in some cases, requiring us to certify that the covered materials we use in our packages do not come


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from the conflict areas. We may incur additional costs associated with complying with the new requirements and customer initiatives. These new requirements and customer initiatives could affect the pricing, sourcing and availability of metals used in the manufacture of semiconductor devices, and we cannot assure you that we will be able to obtain conflict-free materials in sufficient quantities and at competitive prices or that we will be able to verify the origin of all of the metals we use in our manufacturing process. If we are unable to certify that the metals we use in our packages are conflict-free, it could adversely affect our business as some customers may move their business to other suppliers. Our reputation could also be adversely affected.

We purchase new packaging and test equipment to maintain and expand our operations. From time to time, increased demand for new equipment may cause lead times to extend beyond those normally required by equipment vendors. For example, in the past, increased demand for equipment caused some equipment suppliers to only partially satisfy our equipment orders in the normal time frame or to increase prices during market upturns for the semiconductor industry. The unavailability of equipment or failures to deliver equipment on a timely basis could delay or impair our ability to meet customer orders. If we are unable to meet customer orders, we could lose potential and existing customers. Generally, we acquire our equipment on a purchase order basis and do not enter into long-term equipment agreements. As a result, we could experience adverse changes in pricing, currency risk and potential shortages in equipment in a strong market, which could have a material adverse effect on our results of operations.

We are a large buyer of gold and other commodity materials including substrates and copper. The prices of gold and other commodities used in our business fluctuate. Historically, we have been able to partially offset the effect of commodity price increases through price adjustments to some customers and changes in our product designs that reduce the material content and cost, such as the use of shorter, thinner, gold wire and migration to copper wire. However, we typically do not have long-term contracts that permit us to impose price adjustments, and market conditions may limit our ability to do so. Significant price increases may adversely impact our gross margin in future periods to the extent we are unable to pass along past or future commodity price increases to our customers.

Customer Concentration and Loss of Customers — The Loss of Certain Customers or Reduced Pricing or Orders from Existing Customers May Have a Significant Adverse Effect on Our Operations and Financial Results.

We have derived and expect to continue to derive a large portion of our revenues from a small group of customers during any particular period due in part to the concentration of market share in the semiconductor industry. Our ten largest customers together accounted for 62.9% of our net sales in 2013. One customer accounted for 23.7% and another customer accounted for 10.5% of net sales in 2013. The loss of a significant customer, a reduction in orders or decrease in price from a significant customer or disruption in any of our significant strategic partnerships or other commercial arrangements may result in a decline in our sales and profitability and could have a material adverse effect on our business, liquidity, results of operations, financial condition and cash flows.

The demand for our services from each customer is directly dependent upon that customer’s level of business activity, the quality and price of our services, our cycle time and delivery performance, the customer's qualification of additional competitors on products we package or test and a number of other factors. Each of these factors could vary significantly from year to year resulting in the loss or reduction of customer orders. Our business is likely to remain subject to this variability in order levels, and we cannot assure you that our key customers or any other customers will continue to place orders with us in the future at the same levels as in past periods.

From time to time we may acquire or build new facilities, such as our new factory and research and development center in Korea or migrate existing business among our facilities. In connection with these facility changes, our customers require us to re-qualify the new facilities even though we have already qualified to perform the services at our other facilities. We cannot assure that we will successfully re-qualify or that our customers will not qualify our competitors and move the business for such services.



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Capital Expenditures - We Make Substantial Investments in Equipment and Facilities To Support the Demand Of Our Customers, Which May Adversely Affect Our Business If the Demand Of Our Customers Does Not Develop As We Expect or Is Adversely Affected.

We make significant investments in equipment and facilities in order to service the demand of our customers. For example, we had capital expenditures of $566.3 million in 2013, $533.5 million in 2012 and $466.7 million in 2011. The amount of our capital expenditures depends on several factors, including the performance of our business, our assessment of future industry and customer demand, our capacity utilization levels and availability, our liquidity position and the availability of financing. Our ongoing capital expenditure requirements may strain our cash and short-term asset balances, and, in periods when we are expanding our capital base, we expect that depreciation expense and factory operating expenses associated with our capital expenditures to increase production capacity will put downward pressure on our gross margin, at least over the near term. From time to time, we also make significant capital expenditures based on specific business opportunities with one or a few key customers, and the additional equipment purchased may not be readily usable to support other customers. If demand is insufficient to fill our capacity, or we are unable to efficiently redeploy such equipment, our capacity utilization and gross margin could be negatively impacted. Our capital expenditures may increase as we transition to new packaging and test technologies because, among other things, new equipment used for these technologies is generally more expensive and often our existing equipment cannot be redeployed in whole or part for these technologies.

Furthermore, if we cannot generate or raise additional funds to pay for capital expenditures, particularly in some of the advanced packaging and bumping areas, as well as research and development activities, our growth and future profitability may be adversely affected. Our ability to obtain external financing in the future is subject to a variety of uncertainties, including:
our future financial condition, results of operations and cash flows;
general market conditions for financing;
volatility in fixed income, credit and equity markets and
economic, political and other global conditions.
The lead time needed to order, install and put into service various capital investments is often significant, and, as a result, we often need to commit to capital expenditures in advance of our receipt of firm orders or advance deposits based on our view of anticipated future demand with only very limited visibility. Although we seek to limit our exposure in this regard, in the past we have from time to time expended significant capital for additional equipment or facilities for which the anticipated demand did not materialize for a variety of reasons, many of which were outside of our control. To the extent this occurs in the future, our business, liquidity, results of operations, financial condition and cash flows could be materially adversely affected.

In addition, during periods where customer demand exceeds our capacity, customers may transfer some or all of their business to other suppliers who are able to support their needs. To the extent this occurs, our business, liquidity, results of operations, financial condition and cash flows could be materially adversely affected.

Impairment Charges — Any Impairment Charges Required Under U.S. GAAP May Have a Material Adverse Effect on Our Net Income.

Under U.S. GAAP, we review our long-lived assets including property, plant and equipment, intellectual property and other intangibles for impairment when events or changes in circumstances indicate the carrying value may not be recoverable. Factors we consider include significant under-performance relative to expected historical or projected future operating results, significant negative industry or economic trends and our market capitalization relative to net book value. We may be required in the future to record a significant charge to earnings in our financial statements during the period in which any impairment of our long-lived assets is determined. Such charges have had and could have a significant adverse impact on our results of operations and our operating flexibility under our debt covenants.



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Litigation Incident to Our Business Could Adversely Affect Us.

We have been a party to various legal proceedings, including those described in Note 19 to our Consolidated Financial Statements in Part II, Item 8 of this Annual Report on Form 10-K, and may be a party to legal proceedings in the future. These proceedings could require significant management time and resources and, if an unfavorable ruling or outcome were to occur in these legal proceedings, there could be a material adverse impact on our business, liquidity, results of operations, financial condition, cash flows and the trading price of our securities.

We Could Suffer Adverse Tax and Other Financial Consequences if There Are Changes in Tax Law or Taxing Authorities Do Not Agree with Our Interpretation of Applicable Tax Laws, Including Whether We Continue to Qualify for Our Tax Holidays.

Our operations are subject to tax in multiple jurisdictions with complicated and varied tax regimes. Tax laws and income tax rates in these jurisdictions are subject to change due to economic and political conditions. Changes in tax laws could have a material adverse impact on our liquidity, results of operations, financial condition and cash flows. For example, there have been proposals to change U.S. tax laws that would significantly impact how U.S. corporations are taxed on foreign earnings. We earn a substantial portion of our income in foreign countries. Although we cannot predict whether or in what form any of these proposals might be enacted into law, if adopted they could have a material adverse impact.

Our corporate structure and operations are based, in part, on interpretations of various tax laws, including withholding tax, compliance with tax holiday requirements, application of changes in tax law to our operations and other relevant laws of applicable taxing jurisdictions. From time to time, the taxing authorities of the relevant jurisdictions may conduct examinations of our income tax returns and other regulatory filings. We cannot assure you that the taxing authorities will agree with our interpretations, including whether we continue to qualify for our tax holidays. To the extent they do not agree, we may seek to enter into settlements with the taxing authorities which require significant payments or otherwise adversely affect our results of operations or financial condition. We may also appeal the taxing authorities’ determinations to the appropriate governmental authorities, but we cannot be sure we will prevail. If we do not prevail, we may have to make significant payments or otherwise record charges (or reduce tax assets) that adversely affect our results of operations, financial condition and cash flows. Additionally, certain of our subsidiaries operate under tax holidays, which will expire in whole or in part at various dates in the future. As those tax holidays expire, our tax expenses will increase as income from those jurisdictions become subject to higher statutory income tax rates, thereby reducing our liquidity and cash flow.

Intellectual Property — Our Business Will Suffer if We Are Not Able to Develop New Proprietary Technology, Protect Our Proprietary Technology and Operate Without Infringing the Proprietary Rights of Others.

The complexity and breadth of semiconductor packaging and test services are rapidly increasing. As a result, we expect that we will need to develop, acquire and implement new manufacturing processes and packaging design technologies and tools in order to respond to competitive industry conditions and customer requirements. Technological advances also typically lead to rapid and significant price erosion and may make our existing packages less competitive or our existing inventories obsolete. If we cannot achieve advances in packaging design or obtain access to advanced packaging designs developed by others, our business could suffer.

The need to develop and maintain advanced packaging capabilities and equipment could require significant research and development, capital expenditures and acquisitions in future years. In addition, converting to new packaging designs or process methodologies could result in delays in producing new package types, which could adversely affect our ability to meet customer orders and adversely impact our business.

The process of seeking patent protection takes a long time and is expensive. There can be no assurance that patents will issue from pending or future applications or that, if patents are issued, the rights granted under the patents will provide us with meaningful protection or any commercial advantage. Any patents we do obtain will eventually expire, may be challenged, invalidated or circumvented and may not provide meaningful protection or other commercial advantage to us.



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Some of our technologies are not covered by any patent or patent application. The confidentiality agreements on which we rely to protect these technologies may be breached and may not be adequate to protect our proprietary technologies. There can be no assurance that other countries in which we market our services will protect our intellectual property rights to the same extent as the U.S.

Our competitors may develop, patent or gain access to know-how and technology similar or superior to our own. In addition, many of our patents are subject to cross licenses, several of which are with our competitors. The semiconductor industry is characterized by frequent claims regarding the infringement of patent and other intellectual property rights. If any third party makes an enforceable infringement claim against us or our customers, we could be required to:
discontinue the use of certain processes or cease to provide the services at issue, which could curtail our business;
pay substantial damages;
develop non-infringing technologies, which may not be feasible or
acquire licenses to such technology, which may not be available on commercially reasonable terms or at all.
We may need to enforce our patents or other intellectual property rights, including our rights under patent and intellectual property licenses with third parties, or defend ourselves against claimed infringement of the rights of others through litigation, which could result in substantial cost and diversion of our resources. Furthermore, if we fail to obtain necessary licenses, our business could suffer, and we could be exposed to claims for damages and injunctions from third parties, as well as claims from our customers for indemnification. We have been involved in legal proceedings involving the acquisition and license of intellectual property rights, the enforcement of our existing intellectual property rights or the enforcement of the intellectual property rights of others, including the legal proceeding filed by and against Tessera, Inc. and the complaint filed and ongoing proceeding against Carsem (M) Sdn Bhd, Carsem Semiconductor Sdn Bhd, and Carsem Inc., or collectively “Carsem”, which are described in more detail in Note 19 to our Consolidated Financial Statements in Part II, Item 8 of this Annual Report on Form 10-K. Unfavorable outcomes in any legal proceedings involving intellectual property could result in significant liabilities and could have a material adverse effect on our business, liquidity, results of operations, financial condition and cash flows. The potential impact from the legal proceedings referred to in this Annual Report on Form 10-K on our results of operations, financial condition and cash flows could change in the future.

Packaging and Test Processes Are Complex and Our Production Yields and Customer Relationships May Suffer from Defects in the Services We Provide or if We do Not Successfully Implement New Technologies.

Semiconductor packaging and test services are complex processes that require significant technological and process expertise. Defective packages primarily result from:
contaminants in the manufacturing environment;
human error;
equipment malfunction;
changing processes to address environmental requirements;
defective raw materials or
defective plating services.
Test is also complex and involves sophisticated equipment and software. Similar to many software programs, these software programs are complex and may contain programming errors or “bugs.” The test equipment is also subject to malfunction. In addition, the test process is subject to operator error.

These and other factors have, from time to time, contributed to lower production yields. They may also do so in the future, particularly as we adjust our capacity, change our processing steps or ramp new technologies. In addition, we must continue to develop and implement new packaging and test technologies, and expand our offering of packages to be competitive.


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Our production yields on new packages, particularly those packages which are based on new technologies, typically are significantly lower than our production yields on our more established packages.

Our failure to maintain quality standards or acceptable production yields, if significant and prolonged, could result in loss of customers, increased costs of production, delays, substantial amounts of returned goods and claims by customers relating thereto. Any of these problems could have a material adverse effect on our business, liquidity, results of operations, financial condition and cash flows.

In addition, in line with industry practice, new customers usually require us to pass a lengthy and rigorous qualification process that may take several months. If we fail to qualify packages with potential customers or existing customers, such failure could have a material adverse effect on our business, results of operations, financial condition and cash flows.

Competition — We Compete Against Established Competitors in the Packaging and Test Business as Well as Internal Customer Capabilities and May Face Competition from New Competitors.

The outsourced semiconductor packaging and test market is very competitive. We face substantial competition from established and emerging packaging and test service providers primarily located in Asia, including companies with significant processing capacity, financial resources, local presence, research and development operations, marketing, technology and other capabilities. These companies may also have established relationships with many large semiconductor companies that are our current or potential customers. Consolidation among our competitors could also strengthen their competitive position.

We also face competition from the internal capabilities and capacity of many of our current and potential IDM customers. In addition, we compete with companies (including semiconductor foundries) that provide wafer bumping and other advanced packaging solutions that compete with our packaging and test services. For example, one of the major semiconductor foundries, which is substantially larger and has greater financial resources than we do, has expanded, and may continue to expand its operations to include packaging and test services.

We cannot assure you that we will be able to compete successfully in the future against our existing or potential competitors or that our customers will not rely on internal sources for packaging and test services, or that our business, liquidity, results of operations, financial condition and cash flows will not be adversely affected by such increased competition.

Environmental, Health & Safety Laws and Initiatives — Future Environmental, Health & Safety Laws and Initiatives Could Place Additional Burdens on Our Manufacturing Operations.

The semiconductor packaging process generates by-products that are subject to extensive governmental regulations. For example, at our foreign facilities we produce liquid waste when semiconductor wafers are diced into chips with the aid of diamond saws, then cooled with running water. In addition, semiconductor packages have historically utilized metallic alloys containing lead (Pb) within the interconnect terminals typically referred to as leads, pins or balls. Environmental, health and safety laws and regulations in places we do business, impose various controls on the use, storage, handling, discharge and disposal of chemicals used in our production processes and on the factories we occupy and are increasingly imposing restrictions on the materials contained in semiconductor products. We may become liable under these environmental, health and safety laws and regulations for the cost of compliance and cleanup of any disposal or release of hazardous materials arising out of our former or current operations, or otherwise as a result of the existence of hazardous materials on our properties. In such an event, we could be held liable for damages, including fines, penalties and the cost of investigations and remedial actions, and could also be subject to revocation of permits negatively affecting our operations.

Public attention has focused on the environmental impact of semiconductor operations and the risk to neighbors of chemical releases from such operations and to the materials contained in semiconductor products. For example, the European Union’s Restriction of Use of Certain Hazardous Substances in Electrical and Electronic Equipment Directive imposes strict restrictions on the use of lead and other hazardous substances in electrical and electronic equipment. In addition, increasing climate change and environmental concerns could result in our customers requesting that we exceed regulatory standards. Complying with existing and possible future environmental, health and safety laws or related customer requests may impose upon us the need for additional equipment or other process requirements, restrict our ability to expand our operations, disrupt


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our operations, increase costs, subject us to liability or cause us to curtail our operations. Furthermore, energy costs in general could increase significantly due to climate change and other regulations.

Our Business and Financial Condition Could be Adversely Affected by Natural Disasters and Other Calamities.

We have significant packaging and test and other operations in locations which are subject to natural disasters, such as earthquakes, tsunamis, typhoons, floods, droughts, volcanoes and other severe weather and geological events, and other calamities, such as fire; the outbreak of infectious diseases (such as SARs or flu); industrial strikes; breakdowns of equipment; difficulties or delays in obtaining materials, equipment, utilities and services; political events; acts of war and terrorist incidents; industrial accidents and other events, that could disrupt or even shutdown our operations. In addition, our suppliers and customers also have significant operations in such locations. In the event of such a disruption or shutdown, we may be unable to reallocate production to other facilities in a timely or cost-effective manner (if at all) and we may not have sufficient capacity to service customer demands in our other facilities. A natural disaster or other calamity that results in a prolonged disruption to our operations, or the operations of our customers or suppliers, could have a material adverse effect on our business, financial condition, results of operations and cash flows. For example, Japan experienced a severe earthquake and tsunami in 2011 that resulted in significant disruption in the electronics industry supply chain and adversely affected Japan's economy and consumer spending. In addition, in October 2011, Thailand experienced substantial flooding which affected the facilities and operations of customers and suppliers in our industry. In addition, some of the processes that we utilize in our operations place us at risk of fire and other damage. For example, highly flammable gases are used in the preparation of wafers holding semiconductor devices for flip chip packaging. Although we maintain insurance policies for various types of property, casualty and other risks, we do not carry insurance for all the above referred risks and with regard to the insurance we do maintain, we cannot assure you that it would be sufficient to cover all of our potential losses. As a result, our business, financial condition, results of operations and cash flows could be adversely affected by natural disasters and other calamities.

Continued Control By Existing Stockholders — Mr. James J. Kim and Members of His Family Can Effectively Determine or Substantially Influence The Outcome of All Matters Requiring Stockholder Approval.

As of December 31, 2013, Mr. James J. Kim, the Executive Chairman of our Board of Directors, members of Mr. Kim’s immediate family and affiliates owned approximately 137.5 million shares, or approximately 63%, of our outstanding common stock. In June 2013, the Kim family exchanged their 2014 Notes for approximately 49.6 million shares of common stock (the "2014 Convert Shares"). The Kim Family also has options to acquire approximately 0.5 million shares. If the options are exercised, the Kim family's total ownership would be an aggregate of approximately 138.0 million shares of our outstanding common stock or approximately 63% of our outstanding common stock.

The 2014 Convert Shares are subject to a voting agreement. The agreement requires the Kim family to vote these shares in a “neutral manner” on all matters submitted to our stockholders for a vote, so that such 2014 Convert Shares are voted in the same proportion as all of the other outstanding securities (excluding the other shares owned by the Kim family) that are actually voted on a proposal submitted to Amkor’s stockholders for approval. The Kim family is not required to vote in a “neutral manner” any 2014 Convert Shares that, when aggregated with all other voting shares held by the Kim family, represent 41.6% or less of the total then-outstanding voting shares of our common stock. The voting agreement for the 2014 Convert Shares terminates upon the earliest of (i) such time as no principal amount of the 2014 Notes remains outstanding and the Kim family no longer beneficially owns any of the 2014 Convert Shares, (ii) consummation of a change of control (as defined in the voting agreement) or (iii) the mutual agreement of the Kim family and Amkor.

Mr. James J. Kim and his family and affiliates, acting together, have the ability to effectively determine or substantially influence matters submitted for approval by our stockholders by voting their shares or otherwise acting by written consent, including the election of our Board of Directors. There is also the potential, through the election of members of our Board of Directors, that the Kim family could substantially influence matters decided upon by our Board of Directors. This concentration of ownership may also have the effect of impeding a merger, consolidation, takeover or other business consolidation involving us, or discouraging a potential acquirer from making a tender offer for our shares, and could also negatively affect our stock’s market price or decrease any premium over market price that an acquirer might otherwise pay. Concentration of ownership also reduces the public float of our common stock. There may be less liquidity and higher price volatility for the stock of companies with a smaller public float compared to companies with broader public ownership.



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Item 1B.
Unresolved Staff Comments

None.

Item 2.
Properties

The location and size of our manufacturing facilities are set forth in the table below. All facilities are owned unless otherwise specified.
 
 
Approximate
Facility Size
(Square Feet)
Korea
 
 
Gwangju, Korea
 
1,221,000

Seoul, Korea
 
668,000

Pupyong, Korea (1)
 
448,000

Philippines
 
 
Muntinlupa, Philippines (2)
 
661,000

Province of Laguna, Philippines (2)
 
629,000

China
 
 
Shanghai, China (3)
 
887,000

Taiwan
 
 
Hsinchu, Taiwan
 
489,000

Lung Tan, Taiwan
 
353,000

Malaysia
 
 
Telok Panglima Garang, Malaysia (3)
 
377,000

Japan
 
 
Kitakami, Japan (4)
 
207,000

(1)
Includes a lease for 44,000 square feet of building space.
(2)
As a result of foreign ownership restrictions in the Philippines, the land is leased. A portion of the land we lease is owned by realty companies in which we own a 40% interest. We also lease 661,000 square feet of building space.
(3)
Land is leased.
(4)
Leased facility.
During 2013, we purchased land for a factory and research and development center in Korea. The agreement to purchase the land for the facility is subject to our compliance with various construction, investment, hiring, regulatory and other requirements. We anticipate beginning construction of our new factory and research and development center in late 2014. Construction work will continue through 2015 and into early 2016. There can be no assurance that the new facility will proceed at all, or that the actual scope, costs, timeline or benefits of the project will be consistent with our current expectations.

Our principal executive office and operational headquarters is located in Chandler, Arizona. In addition to executive staff, the Chandler, Arizona campus houses sales and customer service for the southwest region, product management, finance, information systems, planning and marketing. Our marketing and sales office locations include sites at most of our manufacturing locations as well as Europe, Singapore and the U.S. (Chandler, Arizona; Irvine, San Diego and Santa Clara, California; Boston, Massachusetts and Dallas, Texas).

We believe that our existing properties are in good condition and suitable for the conduct of our business and that the productive capacity of such properties is substantially being utilized or we have plans to utilize it.


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Item 3.
Legal Proceedings

From time to time, we are involved in various disputes and litigation matters that arise in the ordinary course of our business. These include disputes and lawsuits related to intellectual property, acquisitions, licensing, contracts, tax, regulatory, employee relations and other matters. For a discussion of “Legal Proceedings,” see Note 19 to our Consolidated Financial Statements in Part II, Item 8 of this Annual Report on Form 10-K.

Item 4.
Mine Safety Disclosures

Not applicable.

PART II

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

LISTING ON THE NASDAQ GLOBAL SELECT MARKET

Our common stock is traded on the NASDAQ Global Select Market under the symbol “AMKR.” The following table sets forth, for the periods indicated, the high and low sale prices per share of our common stock as quoted on the NASDAQ Global Select Market.
 
 
High
 
 
 
Low
 
2013
 
 
 
 
 
 
 
First Quarter
 
$
4.99

 
 
 
$
3.99

 
Second Quarter
 
4.63

 
 
 
3.60

 
Third Quarter
 
4.61

 
 
 
4.01

 
Fourth Quarter
 
6.13

 
 
 
4.35

 
2012
 
 
 
 
 
 
 
First Quarter
 
$
6.78

 
 
 
$
4.46

 
Second Quarter
 
6.25

 
 
 
4.29

 
Third Quarter
 
5.58

 
 
 
4.36

 
Fourth Quarter
 
4.60

 
 
 
3.65

 

There were approximately 146 holders of record of our common stock as of January 31, 2014.

DIVIDEND POLICY

Since our public offering in 1998, we have never paid a dividend to our stockholders, and we do not have any present plans for doing so. In addition, our U.S. revolving credit agreement and the indentures governing our senior notes limit our ability to pay dividends. Refer to the Liquidity and Capital Resources section in Item 7 of this Annual Report on Form 10-K.

RECENT SALES OF UNREGISTERED SECURITIES

None.

EQUITY COMPENSATION PLANS

The information required by this item regarding equity compensation plans is set forth in Part III, Item 12 of this Annual Report on Form 10-K.



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PURCHASES OF EQUITY SECURITIES BY THE ISSUER AND AFFILIATED PURCHASERS

The following table provides information regarding repurchases of our common stock during the three months ended December 31, 2013. We refer you to Note 17 to our Consolidated Financial Statements in Part II, Item 8 of this Annual Report on Form 10-K for further discussion.
Period
Total Number of Shares Purchased (a)
Average Price Paid Per Share ($)
Total Number of Shares Purchased as part of Publicly Announced Plans or Programs (b)
Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs ($) (b)
 
 
 
 
 
October 1-October 31
1,597

$
4.42


$
91,586,032

November 1-November 30
39,750

5.35


91,586,032

December 1-December 31
2,021

5.86


91,586,032

Total
43,368

$
5.34


 

(a)
Represents shares of common stock surrendered to us to satisfy tax withholding obligations associated with the vesting of restricted shares issued to employees.

(b)
Our Board of Directors previously authorized the repurchase of up to $300.0 million of our common stock, $150.0 million in August 2011 and $150.0 million in February 2012, exclusive of any fees, commissions or other expenses. During 2013, we made no common stock purchases, and at December 31, 2013, approximately $91.6 million was available pursuant to the stock repurchase program.


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PERFORMANCE GRAPH(1)




(1)
The preceding Stock Performance Graph is not deemed filed with the Securities and Exchange Commission and shall not be incorporated by reference in any of our filings under the Securities Act of 1933 or the Securities Exchange Act of 1934, as amended, whether made before or after the date hereof and irrespective of any general incorporation language in any such filing.



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Item 6.
Selected Consolidated Financial Data

The following selected consolidated financial data as of December 31, 2013 and 2012, and for the years ended December 31, 2013, 2012 and 2011, have been derived from our audited Consolidated Financial Statements included in this Annual Report on Form 10-K. The following selected consolidated financial data as of December 31, 2011, 2010 and 2009, and for the years ended December 31, 2010 and 2009, have been derived from audited financial statements not included herein. On July 31, 2013, we completed the purchase of Amkor Technology Malaysia Sdn. Bhd. The financial results of the entity have been included in our Consolidated Financial Statements from the date of acquisition. You should read the selected consolidated financial data in conjunction with Management’s Discussion and Analysis of Financial Condition and Results of Operations and our Consolidated Financial Statements in Part II, Item 7 and Item 8, respectively, of this Annual Report on Form 10-K.

SELECTED HISTORICAL CONSOLIDATED FINANCIAL DATA
 
For the Year Ended December 31,
 
2013
 
2012
 
2011
 
2010
 
2009
 
(In thousands, except per share data)
Income Statement Data:
 
 
 
 
 
 
 
 
 
Net sales
$
2,956,450

 
$
2,759,546

 
$
2,776,359

 
$
2,939,483

 
$
2,179,109

Gross profit (a)
544,513

 
423,810

 
490,569

 
663,756

 
480,396

Operating income
232,109

 
152,692

 
193,670

 
373,798

 
225,317

Loss (gain) on debt retirement, net (b)
12,330

 
1,199

 
15,531

 
18,042

 
(15,088
)
Income tax expense (benefit) (c)
22,646

 
17,001

 
7,124

 
19,012

 
(29,760
)
Equity in earnings of J-Devices
10,316

 
5,592

 
7,085

 
6,435

 
2,373

Net income
111,657

 
42,702

 
93,095

 
232,147

 
156,283

Net income attributable to Amkor
109,296

 
41,818

 
91,808

 
231,971

 
155,980

Net income attributable to Amkor per common share:
 
 
 
 
 
 
 
 
 
Basic
$
0.58

 
$
0.26

 
$
0.48

 
$
1.26

 
$
0.85

Diluted
$
0.50

 
$
0.24

 
$
0.39

 
$
0.91

 
$
0.67

 
 
 
 
 
 
 
 
 
 
Other Financial Data:
 
 
 
 
 
 
 
 
 
Depreciation and amortization
$
410,346

 
$
370,479

 
$
335,644

 
$
323,608

 
$
305,510

Purchases of property, plant and equipment
566,256

 
533,512

 
466,694

 
445,669

 
173,496

 
 
 
 
 
 
 
 
 
 
Balance Sheet Data:
 
 
 
 
 
 
 
 
 
Cash and cash equivalents
$
610,442

 
$
413,048

 
$
434,631

 
$
404,998

 
$
395,406

Working capital
541,480

 
438,781

 
354,644

 
289,859

 
327,088

Total assets
3,427,298

 
3,025,215

 
2,773,047

 
2,736,822

 
2,432,909

Non-current liabilities, including debt
1,771,422

 
1,705,794

 
1,429,640

 
1,327,933

 
1,437,371

Total Amkor stockholders’ equity
953,740

 
657,955

 
693,266

 
630,013

 
383,209

(a)
During 2013 and 2012, we recorded a charge of $10.0 million and $50.0 million, respectively, to cost of sales relating to our pending patent license litigation.
(b)
During 2013, we exchanged debt for shares of our common stock and a cash payment and charge of $11.6 million. During 2011, we recorded a net loss of $15.5 million related to the tender and call of debt and the write-off of associated unamortized deferred debt issuance costs. During 2010, we recorded a net loss of $18.0 million related to several debt transactions.
(c)
Generally, our effective tax rate is substantially below the U.S. federal tax rate of 35% because we have experienced taxable losses in the U.S. and our income is taxed in foreign jurisdictions where we benefit from tax holidays or tax rates lower than the U.S. statutory rate. In 2009, a $25.6 million benefit for the release of a valuation allowance in Korea was included in the income tax benefit.


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Table of Contents

Item 7.
Management’s Discussion and Analysis of Financial Condition and Results of Operations

Overview

Amkor is one of the world’s leading providers of outsourced semiconductor packaging and test services. Our financial goals are sales growth and improved profitability, and we are focusing on the following strategies to achieve these goals: leveraging our investment in services for advanced technologies, improving utilization of existing assets and selectively growing our scale and scope through strategic investments.

We are an industry leader in developing and commercializing cost-effective advanced packaging and test technologies. These advanced technology solutions provide increased value to our customers while typically generating gross margins above the corporate average. This is particularly true in the mobile device market, where growth has outpaced the industry rate. The key to success in the advanced packaging and test area is to generate reasonably quick returns on investments made for customers seeking leading edge technologies.

Another key to our success is to improve the utilization of our existing assets. The transition by leading edge customers to newer packaging and test equipment and platforms typically creates capacity to provide incremental packaging and test services without significant additional investment. As part of our strategy, we are focused on developing a second wave of customers for these assets. For example, we have a concerted effort to increase our sales to Chinese and Taiwanese fabless chip companies, since they dominate the mid-tier and entry-level segments of the mobile device market where most of the growth is occurring. Also in 2013, we began efforts to seek out and engage new customers in the analog area for our mainstream wirebond technologies. Another area of expanded emphasis is the automotive market where semiconductor content continues to grow. These efforts to enlarge our customer base will increase in 2014 as we target these and other customers to grow our revenue and improve the utilization of our existing assets.

From time to time we also see attractive opportunities to grow our customer base and expand markets. For example, in 2009 we invested in J-Devices Corporation, a joint venture to provide semiconductor packaging and test services in Japan. In 2013, we increased our investment in J-Devices to 60%. In 2013, we acquired Toshiba’s power discrete semiconductor packaging and test factory in Malaysia. In addition to adding a new revenue stream from our existing customer, Toshiba, we expect this acquisition to attract new customers. We believe that selective growth through joint ventures, acquisitions and other strategic investments can help diversify our revenue streams, improve our profits and continue our technological leadership. We expect to continue to evaluate these opportunities in 2014.

Our IDM customers include: Intel Corporation; Micron Technology, Inc.; STMicroelectronics N.V.; Texas Instruments Incorporated and Toshiba Corporation. Our fabless customers include: Altera Corporation; Broadcom Corporation; LSI Corporation and Qualcomm Incorporated. Our contract foundry customers include: GlobalFoundries Inc. and Taiwan Semiconductor Manufacturing Company Limited.

Our business is impacted by market conditions in the semiconductor industry, which is cyclical and impacted by broad economic factors, such as world-wide gross domestic product and consumer spending. Historical trends indicate there has been a strong correlation between world-wide gross domestic product levels, consumer spending and semiconductor industry cycles. The semiconductor industry has experienced significant and sometimes prolonged cyclical downturns in the past. We cannot predict the timing, strength or duration of any economic slowdown or subsequent economic recovery.

Our net sales, gross profit, operating income, cash flows, liquidity and capital resources have historically fluctuated significantly from quarter to quarter as a result of many factors, including the seasonality of our business, the cyclical nature of the semiconductor industry and other factors discussed in Part 1, Item 1A of this Annual Report on Form 10-K.

We operate in a capital intensive industry and have a significant level of debt. Servicing our current and future customers requires that we incur significant operating expenses and continue to make significant capital expenditures, which are generally made in advance of the related revenues and without any firm customer commitments. We fund our operations, including capital expenditures and debt service requirements, with cash flows from operations, existing cash and cash equivalents, borrowings under available credit facilities, and proceeds from any additional financing. Maintaining an appropriate level of liquidity is important to our business and depends on, among other things, the performance of our


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business, our capital expenditure levels and our ability to repay debt out of our operating cash flows or proceeds from debt or equity financings.

2013 Financial Highlights

Our net sales increased $196.9 million or 7.1% to $2,956.5 million in 2013 from $2,759.5 million in 2012. The increase was driven by strong demand for wafer-level processing, wirebond memory and flip chip services for mobile communications applications and incremental business from our newly acquired power discrete business in Malaysia. These increases were offset by weakness in demand for products in the consumer end market.

Gross margin in 2013 increased to 18.4% from 15.4% in 2012. The increase in gross margin was primarily due to higher net sales and the improved mix of wafer-level processing, test, and NAND memory services. Gross margin also benefitted from lower costs for gold, which is used in many of our wirebond products. Our gross margin was negatively impacted by 0.4% percentage points in 2013 and 1.8% percentage points in 2012 for charges related to our pending patent license litigation.

Net cash provided by operating activities was $557.5 million for the year ended December 31, 2013, compared to $389.1 million for the year ended December 31, 2012. The increase is mainly attributed to higher net sales and improved profitability.

In 2013, our capital expenditures totaled $566.3 million or 19.2% of net sales compared to $533.5 million or 19.3% of net sales in 2012. Our 2013 capital expenditures were primarily driven by investments in packaging and test equipment supporting the communications end market, as well as the purchase of land relating to our planned factory and research and development center in Korea.

Results of Operations

The following table sets forth certain operating data as a percentage of net sales for the periods indicated:
 
Year Ended December 31,
 
2013
 
2012
 
2011
Net sales
100.0
%
 
100.0
%
 
100.0
%
Materials
40.0
%
 
43.2
%
 
44.1
%
Labor
14.4
%
 
14.3
%
 
14.6
%
Other manufacturing costs
26.8
%
 
25.3
%
 
23.6
%
Patent license litigation
0.4
%
 
1.8
%
 
%
Gross margin
18.4
%
 
15.4
%
 
17.7
%
Operating income
7.9
%
 
5.5
%
 
7.0
%
Income before income taxes and equity in earnings of unconsolidated affiliate
4.2
%
 
2.0
%
 
3.4
%
Net income attributable to Amkor
3.7
%
 
1.5
%
 
3.3
%

Net Sales
 
 
 
 
 
 
 
Change
 
2013
 
2012
 
2011
 
2013 over 2012
 
2012 over 2011
 
(In thousands, except percentages)
Net sales
$
2,956,450

 
$
2,759,546

 
$
2,776,359

 
$
196,904

 
7.1
%
 
$
(16,813
)
 
(0.6
)%

The increase in net sales in 2013 compared to 2012 was attributable to strong demand for wafer-level processing, wirebond NAND memory and flip chip services for mobile communication applications. The increase in net sales in 2013 was also driven by incremental business from our newly acquired power discrete business in Malaysia. These increases were offset by weakness in demand for products in the consumer end market, including gaming and home electronics.



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The decrease in net sales in 2012 compared to 2011 was the result of weakness in the consumer, networking and automotive and industrial end markets. In particular, net sales for services related to home electronics and gaming were lower than historical levels due to insourcing by some of our IDM customers and lower demand for our wirebond services. These decreases were partially offset by strong demand for packaging and test services for mobile communication applications.

Unit volume increased to 12.9 billion units in 2013 from 8.5 billion units in 2012 primarily as a result of the addition of our newly acquired power discrete business in Malaysia, an increase in wafer-level processing services for mobile communication applications and higher demand for leadframe products. Unit volume increased to 8.5 billion units in 2012 from 8.1 billion units in 2011 primarily due to increases in wafer-level processing and flip chip chip scale services, partially offset by decreases in packaging for wirebond array and leadframe products.

Gross Margin
 
 
 
 
 
 
 
Change
 
2013
 
2012
 
2011
 
2013 over 2012
 
2012 over 2011
 
(In thousands, except percentages)
Gross profit
$
544,513

 
$
423,810

 
$
490,569

 
$
120,703

 
$
(66,759
)
Gross margin
18.4
%
 
15.4
%
 
17.7
%
 
3.0
%
 
(2.3
)%

Our cost of sales consists principally of materials, labor, depreciation and manufacturing overhead. Since a substantial portion of the costs at our factories is fixed, relatively modest increases or decreases in capacity utilization rates can have a significant effect on our gross margin.

Gross margin in 2013 increased compared to 2012. The increase in gross margin was primarily driven by higher net sales and the improved mix of wafer-level processing, test and NAND memory services. Gross margin also benefitted from lower costs for gold, which is used in many our wirebond products. Our gross margin was negatively impacted by 0.4% percentage points in 2013 and 1.8% percentage points in 2012 for charges related to our pending patent license litigation.

Gross margin in 2012 decreased compared to 2011. The decrease in gross margin was primarily due to weakness in demand for some of our wirebond products and the corresponding lower level of utilization of these manufacturing assets, charges for our pending patent license litigation and lower net sales due to insourcing by some of our IDM customers. These decreases were partially offset by increased net sales of flip chip, wafer-level processing and test services supporting mobile communications.

Selling, General and Administrative Expenses
 
 
 
 
 
 
 
Change
 
2013
 
2012
 
2011
 
2013 over 2012
 
2012 over 2011
 
(In thousands, except percentages)
Selling, general and administrative
$
247,779

 
$
217,000

 
$
246,513

 
$
30,779

 
14.2
%
 
$
(29,513
)
 
(12.0
)%

Selling, general and administrative expenses increased in 2013 compared to 2012. The increase was driven by higher employee compensation costs as well as professional fees associated with pending litigation and acquisitions. Selling, general and administrative expenses decreased in 2012 compared to 2011. The decrease was primarily the result of reduced employee compensation costs and lower professional fees, partially offset by charges from our restructuring activities in 2012.



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Research and Development
 
 
 
 
 
 
 
Change
 
2013
 
2012
 
2011
 
2013 over 2012
 
2012 over 2011
 
(In thousands, except percentages)
Research and development
$
64,625

 
$
54,118

 
$
50,386

 
$
10,507

 
19.4
%
 
$
3,732

 
7.4
%

Research and development activities are focused on developing new packaging and test services and improving the efficiency and capabilities of our existing production processes. Areas of focus include 2.5D and 3D packaging (including embedded die), silicon interposers and through silicon via technologies, fine pitch copper pillar packaging and wafer level processing in support of advanced wafer nodes.

Research and development expenses in 2013 increased compared to 2012 as a result of expanded development activities with strategic customers along with additional depreciation resulting from continued investments and higher employee compensation expense. Research and development expenses in 2012 increased compared to 2011 due to increased depreciation from research and development investments.

Other Income and Expense
 
 
 
 
 
 
 
Change
 
2013
 
2012
 
2011
 
2013 over 2012
 
2012 over 2011
 
(In thousands, except percentages)
Interest expense, including related party
$
105,908

 
$
97,943

 
$
86,606

 
$
7,965

 
8.1
%
 
$
11,337

 
13.1
 %
Other expense, net
2,214

 
638

 
13,930

 
1,576

 
247.0
%
 
(13,292
)
 
(95.4
)%
Total other expense, net
$
108,122

 
$
98,581

 
$
100,536

 
$
9,541

 
9.7
%
 
$
(1,955
)
 
(1.9
)%

Interest expense in 2013 increased compared to 2012 due to higher levels of long-term debt. The additional interest expense was partially offset by interest savings from the June 2013 exchange of $193.7 million of our 6.0% Convertible Senior Subordinated Notes for shares of our common stock. As a result of this exchange transaction, we recorded a debt retirement charge in other expense of $11.6 million related to the cash payment we made to holders of the notes. This increase in other expense was partially offset by foreign currency gains at our subsidiaries. During 2013, we recorded a foreign currency gain, which was mainly a result of the depreciation of the Japanese yen relative to the U.S. dollar and the associated impact on our U.S. dollar denominated net monetary assets.

Interest expense in 2012 increased compared to 2011 due to $6.0 million of estimated interest related to our pending patent license litigation and higher levels of long-term debt. In 2011, we recorded a $15.5 million loss on debt retirement in other expense due to the refinancing of our 2.5% Convertible Senior Subordinated Notes due May 2011 and the full redemption of our 9.25% Senior Notes due 2016.

Income Tax Expense
 
 
 
 
 
 
 
Change
 
2013
 
2012
 
2011
 
2013 over 2012
 
2012 over 2011
 
(In thousands, except percentages)
Income tax expense
$
22,646

 
$
17,001

 
$
7,124

 
$
5,645

 
33.2
%
 
$
9,877

 
138.6
%

Generally, our effective tax rate is substantially below the U.S. federal tax rate of 35% because we have experienced tax losses in the U.S. and much of our income is taxed in foreign jurisdictions where we benefit from tax holidays or tax rates lower than the U.S. statutory rate. Income tax expense in 2013, 2012 and 2011 is attributable to income tax on profits earned in certain foreign jurisdictions, foreign withholding taxes and minimum taxes. Income tax expense in 2012 and 2011 is also attributable to deferred taxes on undistributed earnings from our investment in J-Devices. The increase in income tax expense in 2013 compared to 2012 is attributable to an increase in operating income, an increase in income tax rates in a jurisdiction where the tax holiday has expired and additions to our uncertain tax positions, partially offset by the release of


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a valuation allowance in a foreign jurisdiction and the utilization of previously unbenefitted net operating loss carryforwards. The increase in income tax expense in 2012 compared to 2011 is attributable to the increase in income tax rates in jurisdictions where tax holidays have partially expired and taxation in a jurisdiction that previously benefited from a net operating loss carryforward and taxation of foreign currency gains in connection with debt denominated in US dollars in a foreign jurisdiction.

During 2013, our subsidiaries in Korea, Malaysia, the Philippines and Taiwan operated under tax holidays which will continue to expire in whole or in part at various dates through 2022. We expect our effective tax rate to increase as the tax holidays expire, as income earned in these jurisdictions will be subject to higher statutory income tax rates. In connection with our land purchase in Korea in 2013, we intend to increase our capital in Korea within three years by at least $100 million through foreign investment pursuant to the Foreign Investment Promotion Act, thereby, availing ourselves of certain additional tax incentives. See Note 6 to our Consolidated Financial Statements included in Part II, Item 8 of this Annual Report on Form 10-K for further discussion of income tax holidays.

At December 31, 2013, we had U.S. net operating loss carryforwards totaling $342.8 million which expire at various times through 2033. Additionally, at December 31, 2013, we had $38.3 million of non-U.S. net operating loss carryforwards, which will expire at various times through 2022. We maintain a valuation allowance on all of our U.S. net deferred tax assets, including our net operating loss carryforwards, and on deferred tax assets in certain foreign jurisdictions. We will release such valuation allowances as the related tax benefits are realized on our tax returns or when sufficient net positive evidence exists to conclude that it is more likely than not that the deferred tax assets will be realized.

Equity in Earnings of J-Devices
 
 
 
 
 
 
 
Change
 
2013
 
2012
 
2011
 
2013 over 2012
 
2012 over 2011
 
(In thousands, except percentages)
Equity in earnings
of J-Devices
$
10,316

 
$
5,592

 
$
7,085

 
$
4,724

 
84.5
%
 
$
(1,493
)
 
(21.1
)%

Our equity in earnings of J-Devices increased in 2013 compared with 2012 as a result of increasing our ownership interest in J-Devices from 30% to 60% in April 2013. The decrease in our equity in earnings of J-Devices in 2012 compared with 2011 was consistent with the decrease in J-Devices' net income.

Quarterly Results

The following table sets forth our unaudited consolidated financial data for the last eight quarters ended December 31, 2013. Our results of operations have varied and may continue to vary from quarter to quarter and are not necessarily indicative of the results of any future period. Our net sales, gross profit and operating income are generally lower in the first quarter of the year as compared to the fourth quarter of the preceding year primarily due to the effect of consumer buying patterns in Asia, Europe and the U.S.

We believe that we have included all adjustments, consisting only of normal recurring adjustments necessary for a fair statement of our selected quarterly data. You should read our selected quarterly data in conjunction with our Consolidated Financial Statements and the related notes, included in Part II, Item 8 of this Annual Report on Form 10-K.

During the three months ended September 30, 2013 we recorded a charge of $10.0 million to cost of sales and $1.0 million to interest expense related to our pending patent license litigation. On July 31, 2013, we completed the purchase of Amkor Technology Malaysia Sdn. Bhd. The financial results of the entity have been included in our Consolidated Financial Statements from the date of acquisition. We also recorded a charge of $30.0 million to cost of sales and $4.0 million to interest expense during the three months ended June 30, 2012, and an additional charge of $20.0 million to cost of sales and $2.0 million to interest expense during the three months ended December 31, 2012, related to our pending patent license litigation.



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The calculation of basic and diluted per share amounts for each quarter is based on the weighted average shares outstanding for that period; consequently, the sum of the quarters may not necessarily be equal to the full year basic and diluted net income per share.
 
For the Quarter Ended
 
Dec. 31,
2013
 
Sept. 30,
2013
 
June 30,
2013
 
Mar. 31,
2013
 
Dec. 31,
2012
 
Sept. 30,
2012
 
June 30,
2012
 
Mar. 31,
2012
 
(In thousands, except per share data)
Net sales
$
754,875

 
$
767,987

 
$
746,059

 
$
687,529

 
$
722,656

 
$
695,353

 
$
686,527

 
$
655,010

Gross profit
150,173

 
141,008

 
138,379

 
114,953

 
112,722

 
116,787

 
89,320

 
104,981

Operating income
74,554

 
58,014

 
58,453

 
41,088

 
42,409

 
54,018

 
21,964

 
34,301

Loss on debt retirement, net
711

 

 
11,619

 

 
1,199

 

 

 

Income tax expense (benefit)
16,685

 
12,170

 
(10,238
)
 
4,029

 
7,992

 
9,538

 
(3,891
)
 
3,362

Equity in earnings of J-Devices
5,637

 
3,179

 
1,445

 
55

 
171

 
2,541

 
892

 
1,988

Net income
41,558

 
26,004

 
30,329

 
13,766

 
7,672

 
22,576

 
872

 
11,582

Net income attributable to Amkor
40,838

 
25,349

 
29,727

 
13,382

 
7,146

 
22,317

 
581

 
11,774

Net income attributable to Amkor per common share:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Basic
$
0.19

 
$
0.12

 
$
0.18

 
$
0.09

 
$
0.05

 
$
0.14

 
$

 
$
0.07

Diluted
$
0.18

 
$
0.11

 
$
0.14

 
$
0.07

 
$
0.05

 
$
0.11

 
$

 
$
0.06


Liquidity and Capital Resources

We assess our liquidity based on our current expectations regarding sales, operating expenses, capital spending and debt service requirements. Based on this assessment, we believe that our cash flow from operating activities, together with existing cash and cash equivalents and availability under our revolving credit facilities, will be sufficient to fund our working capital, capital expenditure and debt service requirements for at least the next twelve months. Thereafter, our liquidity will continue to be affected by, among other things, volatility in the global economy and credit markets, the performance of our business, our capital expenditure levels, other uses of our cash including the final amount of payments due in our pending patent license litigation, any purchases of stock under our stock repurchase program, any acquisitions or investments in joint ventures and our ability to either repay debt out of operating cash flow or refinance it at or prior to maturity with the proceeds of debt or equity offerings. There can be no assurance that we will generate the necessary net income or operating cash flows, or be able to borrow sufficient funds, to meet the funding needs of our business beyond the next twelve months due to a variety of factors, including the cyclical nature of the semiconductor industry and other factors discussed in Part I, Item 1A of this Annual Report on Form 10-K.

Our primary source of cash and the source of funds for our operations are cash flows from operations, current cash and cash equivalents, borrowings under available debt facilities and proceeds from any additional debt or equity financings. As of December 31, 2013, we had cash and cash equivalents of $610.4 million, $1,652.7 million of debt and availability of $149.7 million under our $150.0 million first lien senior secured revolving credit facility. Additionally, our foreign subsidiaries had $70.0 million available to be drawn under secured revolving credit facilities for general corporate purposes, general working capital purposes and capital expenditures and $250.0 million available to be borrowed under secured term loan credit facilities for general working capital purposes, capital expenditures and repayment of inter-company debt.

Included in our cash balance as of December 31, 2013, is $292.5 million held offshore by our foreign subsidiaries. If we were to distribute this offshore cash to the U.S. as repatriated earnings of our foreign subsidiaries, we would incur up to $6.3 million of foreign withholding taxes; however, we would not incur a significant amount of U.S. federal income taxes, due to the availability of tax loss carryovers and foreign tax credits.

We sponsor an accrued severance plan for our subsidiary in Korea, which under existing tax laws in Korea, limits our ability to currently deduct related severance expenses accrued under that plan. The purpose of these limitations is to encourage companies to migrate to a defined contribution or defined benefit plan. If we retain our existing severance plan, the deduction for severance expenses will be limited to severance payments made to retired employees, which results in a larger current income tax liability in Korea. If we decide to adopt a new plan, we would be required to fund a significant portion of the existing liability, which would provide a current tax deduction upon funding. Our Korean severance liability was $145.1 million as of December 31, 2013.


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We refer you to Note 19 to our Consolidated Financial Statements in Part II, Item 8 to this Annual Report on Form 10-K for a discussion of the pending litigation relating to Amkor's license agreement with Tessera. We expect to use cash on hand, proceeds from borrowings under our existing lines of credit or other sources to make any payments that become due in connection with our pending patent license litigation.

We operate in a capital intensive industry. Servicing our current and future customers may require that we incur significant operating expenses and make significant investments in equipment and facilities, which are generally made in advance of the related revenues and without any firm customer commitments. Additionally, in April 2013, we completed the exercise of our option to increase our ownership interest of J-Devices, and in July 2013, we acquired Amkor Technology Malaysia Sdn. Bhd. We refer you to "Investments" below for further discussion.

In January 2013, we sold office space and land located in Chandler, Arizona for $22.8 million.

In May 2013, we issued an additional $225.0 million of 6.375% Senior Notes due October 2022 (the “Additional 2022 Notes”) under the same terms as the original $300.0 million of 6.375% Senior Notes due October 2022. The Additional 2022 Notes were issued at a premium of 103% or $6.8 million. The net proceeds from the issuance of the Additional 2022 Notes were designated for general corporate purposes.

In June 2013, we completed a tender offer for the 6.0% Convertible Senior Subordinated Notes due April 2014 (the “2014 Notes”) and exchanged $193.7 million of the 2014 Notes for an aggregate 64.0 million shares of our common stock and a cash payment of $11.6 million. The cash payment was equivalent to the remaining coupons for the tendered notes.

Our scheduled principal repayments on debt include $61.4 million due in 2014, $85.0 million due in 2015, $70.0 million due in 2016, $90.0 million due in 2017, $345.0 million due in 2018 and $995.0 million due thereafter. We were in compliance with all of our debt covenants at December 31, 2013, and expect to remain in compliance with these covenants for at least the next twelve months.

In order to reduce leverage and future cash interest payments, we may from time to time repurchase our outstanding notes for cash or exchange shares of our common stock for our outstanding notes. Any such transaction may be made in the open market, through privately negotiated transactions or otherwise and is subject to the terms of our indentures and other debt agreements, market conditions, and other factors.

Certain debt agreements have restrictions on dividend payments and the repurchase of stock and subordinated securities, including our convertible notes. These restrictions are determined by calculations based upon cumulative net income. We have never paid a dividend to our stockholders, and we do not have any present plans for doing so. Amkor Technology, Inc. also guarantees certain debt of our subsidiaries.

Our Board of Directors previously authorized the repurchase of up to $300.0 million of our common stock, exclusive of any fees, commissions or other expenses. We did not purchase any stock under the plan for the year ended December 31, 2013. Since inception of the program, we have purchased a total of 45.0 million shares at an aggregate purchase price of $208.4 million. At December 31, 2013, approximately $91.6 million was available to repurchase common stock pursuant to the stock repurchase program. The purchase of stock may be made in the open market or through privately negotiated transactions. The timing, manner, price and amount of any repurchases will be determined by us at our discretion and will depend upon a variety of factors including economic and market conditions, the cash needs and investment opportunities for the business, price, applicable legal requirements and other factors. Our stock repurchase program may be suspended or discontinued at any time.

Investments

We make significant capital expenditures in order to service the demand of our customers. In 2013, our capital expenditures totaled $566.3 million or approximately 19.2% of net sales. Our spending was focused primarily on investments in packaging and test equipment supporting mobile communications applications, as well as the purchase of land relating to our factory and research and development center in Korea.



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We expect that our 2014 capital expenditures will be approximately $450 million. Our expected capital expenditures for 2014 primarily support customer demand for packaging and test services related to mobile communications. Ultimately, the amount of our 2014 capital expenditures will depend on several factors including, among others, the timing and implementation of any capital projects under review, the performance of our business, economic and market conditions, the cash needs and investment opportunities for the business, the need for additional capacity to service anticipated customer demand and the availability of cash flows from operations or financing.

During 2013, we purchased land in Korea for $100.3 million in anticipation of building a new factory and research and development center. We also incurred design costs and $1.7 million of capitalized interest associated with our spending. The agreement to purchase the land for the facility is subject to our compliance with various construction, investment, hiring, regulatory and other requirements. We anticipate beginning construction of our new factory and research and development center in late 2014. Construction work is planned to continue through 2015 and into early 2016. There can be no assurance that the new facility will proceed at all, or that the actual scope, costs, timeline or benefits of the project will be consistent with our current expectations.

In addition, we are subject to risks associated with our capital expenditures, including those discussed in Part I, Item 1A of this Annual Report on Form 10-K under the caption "Capital Expenditures - We Make Substantial Investments in Equipment and Facilities To Support the Demand Of Our Customers, Which May Adversely Affect Our Business If the Demand Of Our Customers Does Not Develop As We Expect or Is Adversely Affected."

In April 2013, we completed the exercise of our option to increase our ownership interest in J-Devices, a joint venture to provide semiconductor packaging and test services in Japan, from 30% to 60% for an aggregate purchase price of $67.4 million. J-Devices is now owned 60% by Amkor, 34% by the former shareholders of NMD and 6% by Toshiba. We also have options to acquire additional equity interests in J-Devices. The options are exercisable at our discretion and permit us to increase our ownership interest in J-Devices up to 66% in 2014 and up to 80% in 2015 and thereafter. We currently plan to exercise our options and increase our ownership interest to 80%, subject to market and other conditions at the time of exercise. If we exercise our option as planned, certain governance restrictions will lapse, and we will then begin consolidating J-Devices' results. The exercise price for all options is payable in cash and is determined using a formula based upon the net book value and a multiple of earnings before interest, taxes, depreciation and amortization of J-Devices.

On July 31, 2013, we completed the purchase of Amkor Technology Malaysia Sdn. Bhd., Toshiba’s power discrete semiconductor packaging and test operation in Malaysia. The total price for the shares was approximately ¥6 billion ($60 million), based on the estimated net asset value at closing. The price for the shares is subject to adjustment to the extent the actual net asset value at closing was more or less than the estimate. We paid ¥4.1 billion ($42 million) in cash at closing and are obligated to pay the remaining ¥1.9 billion ($18 million) by March 31, 2014.

Cash Flows

Net cash provided by (used in) operating, investing and financing activities for each of the three years ended December 31, 2013 were as follows:
 
For the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
Operating activities
$
557,536

 
$
389,063

 
$
516,832

Investing activities
(640,494
)
 
(520,121
)
 
(430,534
)
Financing activities
280,145

 
110,032

 
(58,877
)

Operating activities:  Our cash flows provided by operating activities for the year ended December 31, 2013, increased by $168.5 million compared to the year ended December 31, 2012. The increase is primarily attributable to higher net sales and improved profitability. Our cash provided by operating activities for the year ended December 31, 2012, decreased by $127.8 million compared to the year ended December 31, 2011. The decrease was driven by an increase in working capital.



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Investing activities:  Our cash flows used in investing activities for the year ended December 31, 2013, increased by $120.4 million compared to the year ended December 31, 2012. This increase was primarily due to the purchase of land relating to our planned new facility in Korea of $100.3 million, an investment in J-Devices of $67.4 million and for our newly acquired power discrete business in Malaysia of $42.4 million partially offset by a reduction in capital expenditures. Our cash used in investing activities for the year ended December 31, 2012, increased by $89.6 million compared to the year ended December 31, 2011. This increase was driven by a $66.8 million increase in purchases of property, plant and equipment.

Financing activities:  Our cash flows provided by financing activities for the year ended December 31, 2013, was $280.1 million. The net cash provided by financing activities resulted from the issuance of the Additional 2022 Notes for $225.0 million and borrowings of $150.0 million at our subsidiary in Korea offset by $80.0 million of foreign debt payments. Our cash provided by financing activities in 2012 was $110.0 million. The net cash provided by financing activities during 2012 included borrowings of $667.5 million offset by $470.1 million of foreign debt payments and the repurchase of $80.9 million of common stock under our authorized stock repurchase program.

We provide the following supplemental data to assist our investors and analysts in understanding our liquidity and capital resources. We define free cash flow as net cash provided by operating activities less purchases of property, plant and equipment. Free cash flow is not defined by U.S. GAAP. We believe free cash flow to be relevant and useful information to our investors because it provides them with additional information in assessing our liquidity, capital resources and financial operating results. Our management uses free cash flow in evaluating our liquidity, our ability to service debt and our ability to fund capital expenditures. However, free cash flow has certain limitations, including that it does not represent the residual cash flow available for discretionary expenditures since other, non-discretionary expenditures, such as mandatory debt service, are not deducted from the measure. The amount of mandatory versus discretionary expenditures can vary significantly between periods. This measure should be considered in addition to, and not as a substitute for, or superior to, other measures of liquidity or financial performance prepared in accordance with U.S. GAAP, such as net cash provided by operating activities. Furthermore, our definition of free cash flow may not be comparable to similarly titled measures reported by other companies. Our free cash flow improved $135.7 million to a negative $8.7 million for the year ended December 31, 2013, from a negative free cash flow of $144.4 million in the prior year, primarily due to higher net sales and improved profitability offset by the acquisition of land related to our planned new facility in Korea for $100.3 million.
 
For the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
Net cash provided by operating activities
$
557,536

 
$
389,063

 
$
516,832

Less purchases of property, plant and equipment
566,256

 
533,512

 
466,694

Free cash flow
$
(8,720
)
 
$
(144,449
)
 
$
50,138




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Contractual Obligations

The following table summarizes our contractual obligations at December 31, 2013, and the effect such obligations are expected to have on our liquidity and cash flow in future periods.
 
 
 
Payments Due for Year Ending December 31,
 
Total
 
2014
 
2015
 
2016
 
2017
 
2018
 
Thereafter
 
(In thousands)
Total debt
$
1,646,350

 
$
61,350

 
$
85,000

 
$
70,000

 
$
90,000

 
$
345,000

 
$
995,000

Scheduled interest payment obligations (1)
657,271

 
100,165

 
95,483

 
93,304

 
90,050

 
75,456

 
202,813

Purchase obligations (2)
109,516

 
89,291

 
4,062

 
2,489

 
2,489

 
4,986

 
6,199

Operating lease obligations
56,969

 
23,380

 
14,937

 
4,116

 
4,060

 
4,031

 
6,445

Severance obligations (3)
145,132

 
11,197

 
10,341

 
9,531

 
8,791

 
8,120

 
97,152

Total contractual obligations
$
2,615,238

 
$
285,383

 
$
209,823

 
$
179,440

 
$
195,390

 
$
437,593

 
$
1,307,609

(1)
Scheduled interest payment obligations were calculated using stated coupon rates for fixed rate debt and interest rates applicable at December 31, 2013, for variable rate debt.
(2)
Represents purchase obligations for capital expenditures and long-term supply contracts outstanding at December 31, 2013.
(3)
Represents estimated benefit payments for our Korean subsidiary severance plan.
In addition to the obligations identified in the table above, other non-current liabilities recorded in our Consolidated Balance Sheet at December 31, 2013, include:
$31.3 million of net foreign pension plan obligations and $3.2 million for employee-related liabilities, for which the timing and actual amount of our future cash flow is uncertain. We expect to contribute approximately $2.5 million to the defined benefit pension plans during 2014.
$5.1 million net liability associated with unrecognized tax benefits. Due to the uncertainty regarding the amount and the timing of any future cash outflows associated with our unrecognized tax benefits, we are unable to reasonably estimate the amount and period of ultimate settlement, if any, with the various taxing authorities.
Off-Balance Sheet Arrangements

As of December 31, 2013, we had no off-balance sheet guarantees or other off-balance sheet arrangements as defined in Item 303(a)(4)(ii) of SEC Regulation S-K, other than our operating lease obligations described above in "Contractual Obligations."

Other Contingencies

We refer you to Note 19 to our Consolidated Financial Statements in Part II, Item 8 of this Annual Report on Form 10-K for a discussion of our contingencies related to litigation and other legal matters. If an unfavorable ruling were to occur in these matters, there exists the possibility of a material adverse impact on our business, liquidity, results of operations, financial position and cash flows in the period in which the ruling occurs. The potential impact from the legal proceedings on our business, liquidity, results of operations, financial position and cash flows could change in the future.

Critical Accounting Policies and Use of Estimates

We have identified the policies below as critical to our business operations and the understanding of our results of operations. A summary of our significant accounting policies used in the preparation of our Consolidated Financial Statements appears in Note 1 to our Consolidated Financial Statements included in Part II, Item 8 of this Annual Report on Form 10-K. Our preparation of this Annual Report on Form 10-K requires us to make estimates and assumptions that affect the reported amount of assets and liabilities, disclosure of contingent assets and liabilities at the date of our financial statements and the reported amounts of revenue and expenses during the reporting period. There can be no assurance that actual results will not differ from those estimates.


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We believe the following critical accounting policies, which have been reviewed with the Audit Committee of our board of directors, affect our more significant judgments and estimates used in the preparation of our Consolidated Financial Statements.

Revenue Recognition.  We recognize revenue from our packaging and test services when there is evidence of an arrangement, delivery has occurred or services have been rendered, fees are fixed or determinable and collectibility is reasonably assured. Generally these criteria are met and revenue is recognized upon shipment. If the revenue recognition criteria are not met, we defer the revenue. Deferred revenue generally results from two types of transactions: contractual invoicing at interim points in the packaging and test process prior to shipment of the finished product and customer advances for supply agreements with customers where we commit capacity in exchange for customer prepayment of services. These prepayments are deferred and recorded as customer advances within accrued expenses and other non-current liabilities.

We generally do not take ownership of customer-supplied semiconductor wafers. Title and risk of loss remains with the customer for these materials at all times. Accordingly, the cost of the customer-supplied materials is not included in our Consolidated Financial Statements.

An allowance for sales credits is recorded as a reduction to sales and accounts receivable during the period of sale such that accounts receivable is reported at its estimated net realizable value. The allowance for sales credits is an estimate of the future credits we will issue for billing adjustments primarily for invoicing corrections and miscellaneous customer claims and is estimated based upon recent credit issuance, historical experience and specific identification of known or expected sales credits at the end of the reporting period. Additionally, provisions are made for doubtful accounts when there is doubt as to the collectibility of accounts receivable. The allowance for doubtful accounts is recorded as bad debt expense and is classified as selling, general and administrative expense. The allowance for doubtful accounts is based upon specific identification of doubtful accounts considering the age of the receivable balance, the customer’s historical payment history and current credit worthiness as well as specific identification of any known or expected collectibility issues.

Income Taxes.  We operate in and file income tax returns in various U.S. and non-U.S. jurisdictions which are subject to examination by tax authorities. The tax returns for open years in all jurisdictions in which we do business are subject to change upon examination. We believe that we have estimated and provided adequate accruals for potential additional taxes and related interest expense that may ultimately result from such examinations. We believe that any additional taxes or related interest over the amounts accrued will not have a material effect on our financial condition, results of operations or cash flows. However, resolution of these matters involves uncertainties and there can be no assurance that the outcomes will be favorable. In addition, changes in the mix of income from our foreign subsidiaries, expiration of tax holidays or changes in tax laws or regulations could result in increased effective tax rates in the future.

Additionally, we record valuation allowances for deferred tax assets for which it is more likely than not that the related tax benefits will not be realized. U.S. GAAP requires companies to weigh both positive and negative evidence in determining the need for a valuation allowance for deferred tax assets. As a result of net losses experienced in recent years in certain jurisdictions, we have determined that a valuation allowance is required for certain deferred tax assets including those related to all of our net operating loss carryforwards in the U.S. We will release such valuation allowances as the related deferred tax benefits are realized on our tax returns or when sufficient net positive evidence exists to conclude it is more likely than not that the deferred tax assets will be realized.

Valuation of Inventory.  We order raw materials based on customers’ forecasted demand. If our customers change their forecasted requirements and we are unable to cancel our raw materials order or if our vendors require that we order a minimum quantity that exceeds the current forecasted demand, we will experience a build-up in raw material inventory. We will either seek to recover the cost of the materials from our customers or utilize the inventory in production. However, we may not be successful in recovering the cost from our customers or be able to use the inventory in production and, accordingly, if we believe that it is probable that we will not be able to recover such costs we reduce the carrying value of our inventory. Additionally, we reduce the carrying value of our inventories for the cost of inventory we estimate is excess and obsolete based on the age of our inventories. When a determination is made that the inventory will not be utilized in production or is not saleable, it is written-off.



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Inventories are stated at the lower of cost or market (net realizable value). Cost is principally determined by standard cost (on a first-in, first-out basis for raw materials and purchased components and an average cost basis for work-in-process) or by the weighted moving average method (for commodities and spare parts), both of which approximate actual cost. We review and set our standards as needed, but at a minimum on an annual basis.

Long-lived Assets.  Property, plant and equipment are stated at cost. Depreciation is calculated by the straight-line method over the estimated useful lives of depreciable assets which are as follows:
Land use rights
50 to 90 years
Buildings and improvements
10 to 25 years
Machinery and equipment
2 to 7 years
Software and computer equipment
3 to 5 years
Furniture, fixtures and other equipment
4 to 10 years

Cost and accumulated depreciation for property retired or disposed of are removed from the accounts and any resulting gain or loss is included in earnings. Expenditures for maintenance and repairs are charged to expense as incurred.

We review long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. Recoverability of a long-lived asset group to be held and used in operations is measured by a comparison of the carrying amount to the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset group. If such asset group is considered to be impaired, the impairment loss is measured as the amount by which the carrying amount of the asset group exceeds its fair value. Long-lived assets to be disposed of are carried at the lower of cost or fair value less the costs of disposal.

Legal Contingencies.  We are subject to certain legal proceedings, lawsuits and other claims. We accrue for a loss contingency, including legal proceedings, lawsuits, pending claims and other legal matters, when we conclude that the likelihood of a loss is probable and the amount of the loss can be reasonably estimated. When the reasonable estimate of the loss is within a range of amounts, and no amount in the range constitutes a better estimate than any other amount, we accrue for the amount at the low end of the range. We adjust our accruals from time to time as we receive additional information, but the loss we incur may be significantly greater than or less than the amount we have accrued. We disclose loss contingencies if there is at least a reasonable possibility that a loss has been incurred.

Our assessment of required reserves may change in the future due to new developments in each matter. The present legislative and litigation environment is substantially uncertain, and it is possible that our liquidity, results of operations, financial position and cash flows could be materially and adversely affected by an unfavorable outcome or settlement of our pending litigation and other claims.

Recently Adopted and Recently Issued Standards

For information regarding recently adopted and recently issued accounting standards, see Note 2 to our Consolidated Financial Statements included in Part II, Item 8 of this Annual Report on Form 10-K.



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Item 7A.
Quantitative and Qualitative Disclosures about Market Risk

Market Risk Sensitivity

We are exposed to market risks, primarily related to foreign currency and interest rate fluctuations. In the normal course of business, we employ established policies and procedures to manage the exposure to fluctuations in foreign currency values and changes in interest rates. Our use of derivative instruments, including forward exchange contracts, has been historically insignificant; however, we continue to evaluate the use of hedging instruments to manage currency and other risks.

Foreign Currency Risk

In order to reduce our exposure to foreign currency gains and losses, we generally use natural hedging techniques to reduce foreign currency rate risk. The U.S. dollar is our reporting currency and the functional currency for our subsidiaries, except for our subsidiaries in Japan.

We have foreign currency exchange rate risk associated with the remeasurement of monetary assets and liabilities on our Consolidated Balance Sheets that are denominated in currencies other than the functional currency. We performed a sensitivity analysis of our foreign currency exposure as of December 31, 2013, to assess the potential impact of fluctuations in exchange rates for all foreign denominated assets and liabilities. Assuming a 10% adverse movement for all currencies against the U.S. dollar as of December 31, 2013, our income before income taxes for 2013 would have been approximately $13 million lower.

In addition, we have foreign currency exchange rate exposure on our results of operations. For the year ended December 31, 2013, approximately 93% of our net sales were denominated in U.S. dollars. Our remaining net sales were principally denominated in Korean won and Japanese yen for local country sales. For the year ended December 31, 2013, approximately 62% of our cost of sales and operating expenses were denominated in U.S. dollars and were largely for raw materials and factory supplies. The remaining portion of our cost of sales and operating expenses was principally denominated in the Asian currencies where our production facilities are located and largely consisted of labor and utilities. To the extent that the U.S. dollar weakens against these Asian based currencies, similar foreign currency denominated transactions in the future will result in higher sales, higher cost of sales and operating expenses, with cost of sales and operating expenses having the greater impact on our financial results. Similarly, our sales, cost of sales and operating expenses will decrease if the U.S. dollar strengthens against these foreign currencies. We performed a sensitivity analysis of our foreign currency exposure as of December 31, 2013, to assess the potential impact of fluctuations in exchange rates for all foreign denominated sales and expenses. Assuming a 10% adverse movement from the year ended December 31, 2013, exchange rates of the U.S. dollar compared to all of these Asian-based currencies as of December 31, 2013, our operating income for 2013 would have been approximately $90 million lower.

There are inherent limitations in the sensitivity analysis presented, primarily due to the assumption that foreign exchange rate movements across multiple jurisdictions are similar and would be linear and instantaneous. As a result, the analysis is unable to reflect the potential effects of more complex market or other changes that could arise which may positively or negatively affect our results of operations.

We have foreign currency exchange rate exposure on our stockholders’ equity as a result of the translation of our subsidiaries and J-Devices in Japan where the local currency is the functional currency. To the extent the U.S. dollar strengthens against the local currency, the translation of these foreign currency denominated balances will result in reduced net sales, operating expenses, assets and liabilities. Similarly, our net sales, operating expenses, assets and liabilities will increase if the U.S. dollar weakens against the local currencies. The effect of foreign exchange rate translation on our Consolidated Balance Sheets for the years ended December 31, 2013 and 2012, was a net foreign translation loss of $17.0 million and $4.7 million, respectively, and was recognized as an adjustment to equity through other comprehensive income.



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Table of Contents

Interest Rate Risk

We have interest rate risk with respect to our long-term debt. As of December 31, 2013, we had a total of $1,646.4 million of debt of which 80.6% was fixed rate debt and 19.4% was variable rate debt. The fixed rate debt consists of senior notes and senior subordinated notes. Our variable rate debt principally relates to our foreign borrowings and revolving lines of credit and any amounts outstanding under our $150.0 million senior secured revolving credit facility under which no amounts were drawn as of December 31, 2013. As of December 31, 2012, we had a total of $1,545.0 million of debt of which 83.8% was fixed rate debt and 16.2% was variable rate debt. Changes in interest rates have different impacts on the fixed and variable rate portions of our debt portfolio. A change in interest rates on the fixed portion of the debt portfolio impacts the fair value of the debt instrument but has no impact on interest expense or cash flows. A change in interest rates on the variable portion of the debt portfolio impacts the interest incurred and cash flows but does not generally impact the fair value of the instrument. The fair value of the senior subordinated notes is also impacted by changes in the market price of our common stock.

The table below presents the interest rates, maturities and fair value of our fixed and variable rate debt as of December 31, 2013.
 
2014
 
2015
 
2016
 
2017
 
2018
 
Thereafter
 
Total
 
Fair Value
Long term debt:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Fixed rate debt (In thousands)
$
56,350

 
$

 
$

 
$

 
$
345,000

 
$
925,000

 
$
1,326,350

 
$
1,424,028

Average interest rate
6.0
%
 
%
 
%
 
%
 
7.4
%
 
6.5
%
 
6.7
%
 
 
Variable rate debt (In thousands)
$
5,000

 
$
85,000

 
$
70,000

 
$
90,000

 
$

 
$
70,000

 
$
320,000

 
$
320,000

Average interest rate
3.8
%
 
4.3
%
 
3.9
%
 
4.2
%
 
%
 
3.9
%
 
4.1
%
 
 

For information regarding the fair value of our long-term debt, see Note 18 to our Consolidated Financial Statements in Part II, Item 8 of this Annual Report on Form 10-K.

Equity Price Risk

We have convertible notes that are convertible into our common stock. If investors were to decide to convert their notes to common stock, our future earnings would benefit from a reduction in interest expense and our common stock outstanding would be increased. If we paid a premium to induce such conversion, our earnings could include an additional charge.

Further, the trading price of our common stock has been and is likely to continue to be highly volatile and could be subject to wide fluctuations. Such fluctuations could impact our decision or ability to utilize the equity markets as a potential source of our funding needs in the future.



50

Table of Contents

Item 8.
Financial Statements and Supplementary Data

We present the information required by Item 8 of Form 10-K here in the following order:
 
Page



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Table of Contents

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of Amkor Technology, Inc.:

In our opinion, the consolidated financial statements listed in the accompanying index present fairly, in all material respects, the financial position of Amkor Technology, Inc. and its subsidiaries at December 31, 2013 and 2012, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2013 in conformity with accounting principles generally accepted in the United States of America. In addition, in our opinion, the financial statement schedule listed in the accompanying index presents fairly, in all material respects, the information set forth therein when read in conjunction with the related consolidated financial statements. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2013 based on criteria established in Internal Control — Integrated Framework (1992) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company’s management is responsible for these financial statements and financial statement schedule, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in Management’s Report on Internal Control over Financial Reporting appearing under Item 9A. Our responsibility is to express opinions on these financial statements, on the financial statement schedule, and on the Company’s internal control over financial reporting based on our integrated 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 audits to obtain reasonable assurance about whether the financial statements are free of material misstatement and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the financial statements included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

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 (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (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 receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; 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.

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.

As described in Management's Report on Internal Control over Financial Reporting appearing under Item 9A, management has excluded Amkor Technology Malaysia Sdn. Bhd. from its assessment of internal control over financial reporting as of December 31, 2013 because it was acquired by the Company in a purchase business combination during 2013. We have also excluded Amkor Technology Malaysia Sdn. Bhd. from our audit of internal control over financial reporting. Amkor Technology Malaysia Sdn. Bhd. is a wholly-owned subsidiary whose total assets and total revenues represent 4% and 2%, respectively, of the related consolidated financial statement amounts as of and for the year ended December 31, 2013.


/s/  PricewaterhouseCoopers LLP
Phoenix, Arizona
February 28, 2014



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AMKOR TECHNOLOGY, INC.
CONSOLIDATED STATEMENTS OF INCOME

 
For the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands, except per share data)
Net sales
$
2,956,450

 
$
2,759,546

 
$
2,776,359

Cost of sales
2,411,937

 
2,335,736

 
2,285,790

Gross profit
544,513

 
423,810

 
490,569

Selling, general and administrative
247,779

 
217,000

 
246,513

Research and development
64,625

 
54,118

 
50,386

Total operating expenses
312,404

 
271,118

 
296,899

Operating income
232,109

 
152,692

 
193,670

Interest expense
96,739

 
83,974

 
74,212

Interest expense, related party
9,169

 
13,969

 
12,394

Other expense, net
2,214

 
638

 
13,930

Total other expense, net
108,122

 
98,581

 
100,536

Income before taxes and equity in earnings of unconsolidated affiliate
123,987

 
54,111

 
93,134

Income tax expense
22,646

 
17,001

 
7,124

Income before equity in earnings of unconsolidated affiliate
101,341

 
37,110

 
86,010

Equity in earnings of J-Devices
10,316

 
5,592

 
7,085

Net income
111,657

 
42,702

 
93,095

Net income attributable to noncontrolling interests
(2,361
)
 
(884
)
 
(1,287
)
Net income attributable to Amkor
$
109,296

 
$
41,818

 
$
91,808

Net income attributable to Amkor per common share:
 
 
 
 
 
Basic
$
0.58

 
$
0.26

 
$
0.48

Diluted
$
0.50

 
$
0.24

 
$
0.39

Shares used in computing per common share amounts:
 
 
 
 
 
Basic
187,032

 
160,105

 
190,829

Diluted
235,330

 
243,004

 
273,686


The accompanying notes are an integral part of these statements.


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AMKOR TECHNOLOGY, INC.
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

 
For the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
Net income
$
111,657

 
$
42,702

 
$
93,095

Other comprehensive (loss) income, net of tax:
 
 
 
 
 
Adjustments to unrealized components of defined benefit pension plans, net of tax (expense) benefit of ($252), ($35) and $362
4,360

 
5,137

 
(5,800
)
Cumulative translation adjustment
(4,895
)
 
(2,688
)
 
1,539

Equity interest in J-Devices' other comprehensive loss, net of tax benefit (expense) of $202, $1,552 and ($1,754)
(10,961
)
 
(2,057
)
 
(347
)
Total other comprehensive (loss) income
(11,496
)
 
392

 
(4,608
)
Comprehensive income
100,161

 
43,094

 
88,487

Comprehensive income attributable to noncontrolling interests
(2,361
)
 
(884
)
 
(1,287
)
Comprehensive income attributable to Amkor
$
97,800

 
$
42,210

 
$
87,200


The accompanying notes are an integral part of these statements.



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AMKOR TECHNOLOGY, INC.
CONSOLIDATED BALANCE SHEETS

 
December 31,
 
2013
 
2012
 
(In thousands,
except per share data)
ASSETS
 
 
 
Current assets:
 
 
 
Cash and cash equivalents
$
610,442

 
$
413,048

Restricted cash
2,681

 
2,680

Accounts receivable:
 
 
 
Trade, net of allowances
382,037

 
389,699

Other
3,505

 
13,098

Inventories
200,423

 
227,439

Other current assets
33,328

 
45,444

Total current assets
1,232,416

 
1,091,408

Property, plant and equipment, net
2,006,553

 
1,819,969

Intangibles, net
3,189

 
4,766

Investments
105,214

 
38,690

Restricted cash
2,234

 
2,308

Other assets
77,692

 
68,074

Total assets
$
3,427,298

 
$
3,025,215

 
 
 
 
LIABILITIES AND EQUITY
 
 
 
Current liabilities:
 
 
 
Short-term borrowings and current portion of long-term debt
$
61,350

 
$

Trade accounts payable
365,334

 
439,663

Accrued expenses
264,252

 
212,964

Total current liabilities
690,936

 
652,627

Long-term debt
1,516,390

 
1,320,000

Long-term debt, related party
75,000

 
225,000

Pension and severance obligations
165,073

 
139,379

Other non-current liabilities
14,959

 
21,415

Total liabilities
2,462,358

 
2,358,421

Commitments and contingencies (Note 19)


 


Equity:
 
 
 
Amkor stockholders’ equity:
 
 
 
Preferred stock, $0.001 par value, 10,000 shares authorized, designated Series A, none issued

 

Common stock, $0.001 par value, 500,000 shares authorized, 262,109 and 197,709 shares issued, and 216,702 and 152,397 shares outstanding, in 2013 and 2012, respectively
262

 
198

Additional paid-in capital
1,812,530

 
1,614,143

Accumulated deficit
(647,348
)
 
(756,644
)
Accumulated other comprehensive (loss) income
(255
)
 
11,241

Treasury stock, at cost, 45,407 and 45,312 shares in 2013 and 2012, respectively
(211,449
)
 
(210,983
)
Total Amkor stockholders’ equity
953,740

 
657,955

Noncontrolling interests in subsidiaries
11,200

 
8,839

Total equity
964,940

 
666,794

Total liabilities and equity
$
3,427,298

 
$
3,025,215


The accompanying notes are an integral part of these statements.


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Table of Contents

AMKOR TECHNOLOGY, INC.
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

 
 
 
 
 
Additional Paid-
In Capital
 
Accumulated
Deficit
 
Accumulated
Other
Comprehensive
Income
 
 
 
 
 
Total Amkor
Stockholders'
Equity
 
Noncontrolling
Interest in
Subsidiaries
 
Total
Equity
 
Common Stock
 
 
 
 
Treasury Stock
 
 
 
 
Shares
 
Par Value
 
 
 
 
Shares
 
Cost
 
 
 
 
(In thousands)
Balance at December 31, 2010
183,467

 
$
183

 
$
1,504,927

 
$
(890,270
)
 
$
15,457

 
(47
)
 
$
(284
)
 
$
630,013

 
$
6,668

 
$
636,681

Net income

 

 

 
91,808

 

 

 

 
91,808

 
1,287

 
93,095

Other comprehensive loss

 

 

 

 
(4,608
)
 

 

 
(4,608
)
 

 
(4,608
)
Conversion of debt to common stock
13,351

 
13

 
100,484

 

 

 

 

 
100,497

 

 
100,497

Repurchase of common stock

 

 

 

 

 
(28,573
)
 
(129,500
)
 
(129,500
)
 

 
(129,500
)
Treasury stock acquired through surrender of shares for tax withholding

 

 

 

 

 
(111
)
 
(776
)
 
(776
)
 

 
(776
)
Issuance of stock through share-based compensation plans
541

 
1

 
821

 

 

 

 

 
822

 

 
822

Share-based compensation expense

 

 
5,010

 

 

 

 

 
5,010

 

 
5,010

Balance at December 31, 2011
197,359

 
$
197

 
$
1,611,242

 
$
(798,462
)
 
$
10,849

 
(28,731
)
 
$
(130,560
)
 
$
693,266

 
$
7,955

 
$
701,221

Net income

 

 

 
41,818

 

 

 

 
41,818

 
884

 
42,702

Other comprehensive income

 

 

 

 
392

 

 

 
392

 

 
392

Repurchase of common stock

 

 

 

 

 
(16,472
)
 
(79,814
)
 
(79,814
)
 

 
(79,814
)
Treasury stock acquired through surrender of shares for tax withholding

 

 

 

 

 
(109
)
 
(609
)
 
(609
)
 

 
(609
)
Issuance of stock through share-based compensation plans
350

 
1

 
181

 

 

 

 

 
182

 

 
182

Share-based compensation expense

 

 
2,720

 

 

 

 

 
2,720

 

 
2,720

Balance at December 31, 2012
197,709

 
$
198

 
$
1,614,143

 
$
(756,644
)
 
$
11,241

 
(45,312
)
 
$
(210,983
)
 
$
657,955

 
$
8,839

 
$
666,794

Net income

 

 

 
109,296

 

 

 

 
109,296

 
2,361

 
111,657

Other comprehensive loss

 

 

 

 
(11,496
)
 

 

 
(11,496
)
 

 
(11,496
)
Conversion of debt to common stock
64,027

 
64

 
194,970

 

 

 

 

 
195,034

 

 
195,034

Treasury stock acquired through surrender of shares for tax withholding

 

 

 

 

 
(95
)
 
(466
)
 
(466
)
 

 
(466
)
Issuance of stock through share-based compensation plans
373

 

 
446

 

 

 

 

 
446

 

 
446

Share-based compensation expense

 

 
2,971

 

 

 

 

 
2,971

 

 
2,971

Balance at December 31, 2013
262,109

 
$
262

 
$
1,812,530

 
$
(647,348
)
 
$
(255
)
 
(45,407
)
 
$
(211,449
)
 
$
953,740

 
$
11,200

 
$
964,940


The accompanying notes are an integral part of these statements.


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AMKOR TECHNOLOGY, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS

 
For the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
Cash flows from operating activities:
 
 
 
 
 
Net income
$
111,657

 
$
42,702

 
$
93,095

Adjustments to reconcile net income to net cash provided by operating activities:
 
 
 
 
 
Depreciation and amortization
410,346

 
370,479

 
335,644

Amortization of deferred debt issuance costs and premiums
2,880

 
3,663

 
3,737

Deferred income taxes
(8,256
)
 
6,078

 
(2,239
)
Equity in earnings of unconsolidated affiliate
(10,316
)
 
(5,592
)
 
(7,085
)
Loss on debt retirement, net
11,619

 
737

 
10,557

(Gain) loss on disposal of fixed assets, net
(2,545
)
 
(1,676
)
 
1,942

Share-based compensation
2,971

 
2,720

 
5,010

Other, net
(712
)
 
(1,279
)
 
(189
)
Changes in assets and liabilities:
 
 
 
 
 
Accounts receivable
(992
)
 
(96,107
)
 
95,882

Other receivables
461

 
(1,570
)
 
2,813

Inventories
38,248

 
(29,882
)
 
(6,912
)
Other current assets
10,873

 
(5,015
)
 
(5,597
)
Other assets
(3,709
)
 
(598
)
 
347

Trade accounts payable
(67,198
)
 
17,142

 
(7,539
)
Accrued expenses
32,001

 
66,566

 
(21,676
)
Other non-current liabilities
30,208

 
20,695

 
19,042

Net cash provided by operating activities
557,536

 
389,063

 
516,832

Cash flows from investing activities:
 
 
 
 
 
Purchases of property, plant and equipment
(566,256
)
 
(533,512
)
 
(466,694
)
Acquisition of business, net of cash acquired
(41,865
)
 

 

Proceeds from the sale of property, plant and equipment
27,209

 
2,727

 
15,823

Payments from J-Devices
8,843

 
15,484

 
10,794

Investment in J-Devices
(67,372
)
 

 

Change in restricted cash
74

 
1,693

 
13,046

Other investing activities
(1,127
)
 
(6,513
)
 
(3,503
)
Net cash used in investing activities
(640,494
)
 
(520,121
)
 
(430,534
)
Cash flows from financing activities:
 
 
 
 
 
Borrowings under revolving credit facilities
5,000

 

 

Payments under revolving credit facilities
(5,000
)
 

 

Borrowings under short-term debt

 
30,000

 
26,567

Payments of short-term debt

 
(50,000
)
 
(21,567
)
Proceeds from issuance of long-term debt
375,000

 
637,528

 
387,512

Proceeds from issuance of long-term debt, related party

 

 
75,000

Payments of long-term debt, net of certain redemption premiums
(80,000
)
 
(420,116
)
 
(392,191
)
Payments for debt issuance costs
(3,216
)
 
(6,007
)
 
(5,875
)
Payments for the retirement of debt
(11,619
)
 

 

Payments for repurchase of common stock

 
(80,946
)
 
(128,368
)
Proceeds from issuance of stock through share-based compensation plans
446

 
182

 
821

Payments of tax withholding for restricted shares
(466
)
 
(609
)
 
(776
)
Net cash provided by (used in) financing activities
280,145

 
110,032

 
(58,877
)
Effect of exchange rate fluctuations on cash and cash equivalents
207

 
(557
)
 
2,212

Net increase (decrease) in cash and cash equivalents
197,394

 
(21,583
)
 
29,633

Cash and cash equivalents, beginning of period
413,048

 
434,631

 
404,998

Cash and cash equivalents, end of period
$
610,442

 
$
413,048

 
$
434,631

Supplemental disclosures of cash flow information:
 

 
 

 
 

Cash paid during the period for:
 
 
 
 
 
Interest
$
100,577

 
$
86,138

 
$
81,280

Income taxes
18,318

 
8,199

 
16,380

Non-cash investing activities:
 
 
 
 
 
Common stock issuance for exchange of 6.0% convertible senior subordinated notes due April 2014, $150 million related party
193,650

 

 

Common stock issuance for conversion of related party 6.25% convertible subordinated notes

 

 
100,000


The accompanying notes are an integral part of these statements.


57

Table of Contents

AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements


1.
Description of Business and Summary of Significant Accounting Policies

Description of Business

Amkor is one of the world’s leading providers of outsourced semiconductor packaging and test services. Amkor pioneered the outsourcing of semiconductor packaging and test services through a predecessor corporation in 1968, and over the years, we have built a leading position by:
Designing and developing innovative packaging and test technologies;
Offering a broad portfolio of cost-effective solutions and services;
Successfully penetrating strategic end markets which offer solid growth prospects;
Cultivating long-standing relationships with our customers, which include many of the world’s leading semiconductor companies;
Collaborating with customers, original equipment manufacturers and equipment and material suppliers;
Developing a competitive cost structure with disciplined capital investment;
Building expertise in high-volume manufacturing processes and developing a reputation for high quality and solid execution and
Having a diversified operational scope with research and development, engineering and production capabilities at various facilities throughout China, Japan, Korea, Malaysia, the Philippines, Taiwan and the United States (“U.S.”).

Basis of Presentation

Our Consolidated Financial Statements include the accounts of Amkor Technology, Inc. and our subsidiaries (“Amkor”). Our Consolidated Financial Statements reflect the elimination of all significant inter-company accounts and transactions. On July 31, 2013, we completed the purchase of Amkor Technology Malaysia Sdn. Bhd. The financial results of the entity have been included in our Consolidated Financial Statements from the date of acquisition (Note 3). Our investments in variable interest entities in which we are the primary beneficiary are consolidated. We reflect the remaining portion of variable interest entities and foreign subsidiaries that are not wholly owned as noncontrolling interests.

The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ materially from those estimates and assumptions.

Beginning with the year ended December 31, 2013, we reclassified equity in earnings of unconsolidated affiliate from other expense (income) to below income tax expense in our Consolidated Statements of Income for all periods presented. The income tax note (Note 6) was revised accordingly. The revision had no impact on net income.

Consolidation of Variable Interest Entities

We have variable interests in certain Philippine realty corporations in which we have a 40% ownership and from whom we lease land and buildings in the Philippines, for which we are the primary beneficiary. As of December 31, 2013, the combined book value of the assets and liabilities associated with these Philippine realty corporations included in our Consolidated Balance Sheet was $16.9 million and $0.2 million, respectively. The impact of consolidating these variable interest entities on our Consolidated Statements of Income was not significant, and other than our lease payments, we have not provided any significant assistance or other financial support to these variable interest entities for the years ended December 31, 2013, 2012 or 2011. The creditors of the Philippine realty corporations have no recourse to our general credit.



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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


Foreign Currency Translation

The U.S. dollar is the functional currency of our subsidiaries in China, Korea, Malaysia, the Philippines, Singapore and Taiwan, and the foreign currency asset and liability amounts at these subsidiaries are remeasured into U.S. dollars at end-of-period exchange rates, except for nonmonetary items which are remeasured at historical rates. Foreign currency income and expenses are remeasured at daily exchange rates, except for expenses related to balance sheet amounts which are remeasured at historical exchange rates. Exchange gains and losses arising from remeasurement of foreign currency-denominated monetary assets and liabilities are included in other expense (income) in the period in which they occur.

The local currency is the functional currency of our subsidiaries in Japan. The asset and liability amounts of these subsidiaries are translated into U.S. dollars at end-of-period exchange rates. Income and expenses are translated into U.S. dollars at average exchange rates in effect during the period. The resulting asset and liability translation adjustments are reported as a component of accumulated other comprehensive income in the stockholders’ equity section of the balance sheet. Assets and liabilities denominated in a currency other than the functional currency are remeasured into the functional currency prior to translation into U.S. dollars, and the resulting exchange gains or losses are included in other expense (income) in the period in which they occur.

Concentrations and Credit Risk

Financial instruments, for which we are subject to credit risk, consist principally of accounts receivable and cash and cash equivalents. With respect to accounts receivable, we mitigate our credit risk by selling primarily to well established companies, performing ongoing credit evaluations and making frequent contact with customers. We have historically mitigated our credit risk with respect to cash and cash equivalents through diversification of our holdings into various high quality money market funds and bank deposit accounts. At December 31, 2013, our cash and cash equivalents were invested in U.S. money market funds and various U.S. and foreign bank operating and time deposit accounts.

Risks and Uncertainties

Our future results of operations involve a number of risks and uncertainties. Factors that could affect our business or future results and cause actual results to vary materially from historical results include, but are not limited to, dependence on the highly cyclical semiconductor industry, fluctuations in operating results and cash flows, absence of significant backlog in our business, high fixed costs, failure to meet guidance, declining average selling prices, decisions by our integrated device manufacturer customers to curtail outsourcing, our substantial indebtedness, our ability to fund liquidity needs, restrictive covenants contained in the agreements governing our indebtedness, significant severance plan obligations, failure to maintain an effective system of internal controls, product return and liability risks including warranty claims, dependence on international operations and sales, continuing development and implementation of changes to our management information systems, attracting and retaining qualified employees, difficulties consolidating and integrating our operations, dependence on materials and equipment suppliers, customer concentration and loss of customers, the need for significant capital expenditures, impairment charges, litigation incident to our business, adverse tax consequences, the development of new proprietary technology and the enforcement of intellectual property rights by or against us, complexity of packaging and test processes, competition, our need to comply with existing and future environmental, health and safety laws and initiatives, natural disasters and other calamities and continued control by existing stockholders.

We believe that our cash flows from operating activities together with existing cash and cash equivalents will be sufficient to fund our working capital, capital expenditure and debt service requirements for at least the next twelve months. Thereafter, our liquidity will continue to be affected by, among other things, volatility in the global economy and credit markets, the performance of our business, our capital expenditure levels and our ability to either repay debt out of operating cash flows or refinance debt at or prior to maturity with the proceeds of debt or equity financings.

We are subject to certain legal proceedings, lawsuits and other claims, as discussed in Note 19. We accrue for a loss contingency, including legal proceedings, lawsuits, pending claims and other legal matters, when we conclude that the likelihood of a loss is probable and the amount of the loss can be reasonably estimated. When the reasonable estimate of the loss is within a range of amounts, and no amount in the range constitutes a better estimate than any other amount, we


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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


accrue for the amount at the low end of the range. We adjust our accruals from time to time as we receive additional information, but the loss we incur may be significantly greater than or less than the amount we have accrued. We disclose loss contingencies if there is at least a reasonable possibility that a loss has been incurred. Attorney fees related to legal matters are expensed as incurred.

Cash and Cash Equivalents

We consider all highly liquid investments with a maturity of three months or less when purchased to be cash equivalents. Our cash and cash equivalents consist of amounts invested in U.S. money market funds and various U.S. and foreign bank operating and time deposit accounts.

Restricted Cash

Restricted cash, current, consists of short-term cash equivalents used to collateralize our daily banking services. Restricted cash, non-current, mainly consists of collateral to fulfill foreign trade compliance requirements.

Inventories

Inventories are stated at the lower of cost or market (net realizable value). Cost is principally determined by standard cost (on a first-in, first-out basis for raw materials and purchased components and an average cost basis for work-in-process) or by the weighted moving average method (for commodities and spare parts), both of which approximate actual cost. We review and set our standards as needed, but at a minimum on an annual basis. We reduce the carrying value of our inventories for the cost of inventory we estimate is excess and obsolete based on the age of our inventories. When a determination is made that the inventory will not be utilized in production or is not saleable, it is written-off.

Other Current Assets

Other current assets consist principally of prepaid assets, deferred tax assets and an investment in government securities by a foreign subsidiary to satisfy local regulatory requirements, which is recorded at amortized cost.

Property, Plant and Equipment

Property, plant and equipment are stated at cost. Depreciation is calculated by the straight-line method over the estimated useful lives of depreciable assets which are as follows:
Land use rights
50 to 90 years
Buildings and improvements
10 to 25 years
Machinery and equipment
2 to 7 years
Software and computer equipment
3 to 5 years
Furniture, fixtures and other equipment
4 to 10 years

Cost and accumulated depreciation for property retired or disposed of are removed from the accounts, and any resulting gain or loss is included in earnings. Expenditures for maintenance and repairs are charged to expense as incurred.

We review long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. Recoverability of a long-lived asset group to be held and used in operations is measured by a comparison of the carrying amount to the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset group. If such asset group is considered to be impaired, the impairment loss is measured as the amount by which the carrying amount of the asset group exceeds its fair value. Long-lived assets to be disposed of are carried at the lower of cost or fair value less the costs of disposal.



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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


Intangibles

Finite-lived intangible assets include customer relationship and supply agreements as well as patents and technology rights and are amortized on a straight-line basis over their estimated useful lives, generally for periods ranging from 3 to 10 years. We continually evaluate the reasonableness of the useful lives of these assets. Finite-lived intangibles are tested for recoverability whenever events or changes in circumstances indicate the carrying amounts may not be recoverable. An impairment loss, if any, would be measured as the excess of the carrying value over the fair value determined by discounted future cash flows.

Investments

We have a 60% ownership interest in J-Devices, a joint venture to provide semiconductor packaging and test services in Japan. See Note 12 for additional information. Our investment is accounted for as an equity method investment. We evaluate our investment for other-than-temporary impairment whenever events or changes in circumstances indicate that the fair value of the investment may be less than its carrying value.

Other Assets

Other assets consist principally of deferred tax assets, deferred debt issuance costs and refundable security deposits.

Other Non-current Liabilities

Other non-current liabilities consist primarily of liabilities associated with uncertain income tax positions, deferred revenue, employee-related liabilities, deposits and deferred tax liabilities.

Treasury Stock

Treasury stock is recognized when outstanding shares are repurchased or otherwise acquired by us, including when outstanding shares are withheld to satisfy tax withholding obligations in connection with certain restricted share awards under our equity incentive plans. The repurchased and withheld shares are accounted for as treasury stock at cost. See Note 4 and Note 17 for more information.

Fair Value Measurements

We apply fair value accounting for all financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring or nonrecurring basis. We define fair value as the price that would be received from selling an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. See Note 18 for further discussion of fair value measurements.

Revenue Recognition

We recognize revenue from our packaging and test services when there is evidence of an arrangement, delivery has occurred or services have been rendered, fees are fixed or determinable and collectibility is reasonably assured. Generally these criteria are met and revenue is recognized upon shipment. If the revenue recognition criteria are not met, we defer the revenue. Deferred revenue generally results from two types of transactions: contractual invoicing at interim points in the packaging and test process prior to shipment of the finished product and customer advances for supply agreements with customers where we commit capacity in exchange for customer prepayment of services. These prepayments are deferred and recorded as customer advances within accrued expenses and other non-current liabilities.

We generally do not take ownership of customer-supplied semiconductor wafers. Title and risk of loss remains with the customer for these materials at all times. Accordingly, the cost of the customer-supplied materials is not included in our Consolidated Financial Statements.


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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


An allowance for sales credits is recorded as a reduction to sales and accounts receivable during the period of sale such that accounts receivable is reported at its estimated net realizable value. The allowance for sales credits is an estimate of the future credits we will issue for billing adjustments primarily for invoicing corrections and miscellaneous customer claims and is estimated based upon recent credit issuance, historical experience and specific identification of known or expected sales credits at the end of the reporting period. Additionally, provisions are made for doubtful accounts when there is doubt as to the collectibility of accounts receivable. The allowance for doubtful accounts is recorded as bad debt expense and is classified as selling, general and administrative expense. The allowance for doubtful accounts is based upon specific identification of doubtful accounts considering the age of the receivable balance, the customer’s historical payment history and current credit worthiness as well as specific identification of any known or expected collectibility issues.

Shipping and Handling Fees and Costs

Amounts billed to customers for shipping and handling are presented in net sales. Costs incurred for shipping and handling are included in cost of sales.

Research and Development Costs

Research and development expenses include costs attributable to the conduct of research and development programs primarily related to the development of new package designs and improving the efficiency and capabilities of our existing production processes. Such costs include salaries, payroll taxes, employee benefit costs, materials, supplies, depreciation and maintenance of research equipment, services provided by outside contractors and the allocable portions of facility costs such as rent, utilities, insurance, repairs and maintenance, depreciation and general support services. All costs associated with research and development are expensed as incurred.

Income Taxes

Income taxes are accounted for using the asset and liability method. Under this method, deferred income tax assets and liabilities are recognized for the future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis as well as for net operating loss and tax credit carryforwards. Deferred income tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which these temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. A valuation allowance is provided for those deferred tax assets for which it is more likely than not that the related tax benefits will not be realized.

In determining the amount of the valuation allowance, we consider all available evidence of realization, as well as feasible tax planning strategies, in each taxing jurisdiction. If all or a portion of the remaining deferred tax assets will not be realized, the valuation allowance will be increased with a charge to income tax expense. Conversely, if we conclude that we will ultimately be able to utilize all or a portion of the deferred tax assets for which a valuation allowance has been provided, the related portion of the valuation allowance will be released to income as a credit to income tax expense. We monitor on an ongoing basis our ability to utilize our deferred tax assets and the continuing need for a related valuation allowance.

We recognize in our Consolidated Financial Statements the impact of an income tax position, if that position is more likely than not of being sustained on audit, based on the technical merits of the position. Related interest and penalties are classified as income taxes in the financial statements. See Note 6 for more information regarding unrecognized income tax benefits.



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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


2.
New Accounting Standards

Recently Adopted Standards

In February 2013, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income (Topic 220). ASU 2013-02 requires an entity to provide information about the amounts reclassified out of accumulated other comprehensive income ("AOCI") by component. In addition, an entity is required to present, either on the face of the financial statements or in the notes, significant amounts reclassified out of AOCI by the respective line items of net income, but only if the amount reclassified is required to be reclassified in its entirety in the same reporting period. For amounts that are not required to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures that provide additional details about those amounts. ASU 2013-02 does not change the current requirements for reporting net income or other comprehensive income in the financial statements. This ASU is effective for reporting periods beginning after December 15, 2012. ASU 2013-02 was adopted on January 1, 2013 and did not have a significant impact on our financial statements.

Recently Issued Standards

In March 2013, the FASB issued ASU 2013-05, Parent's Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity (Topic 830). ASU 2013-05 provides guidance to resolve the diversity in practice regarding the release into net income of the cumulative translation adjustment when a company sells or ceases to hold a controlling interest in a subsidiary or group of assets within a foreign entity. This ASU is effective for reporting periods beginning after December 15, 2013. ASU 2013-05 may affect our financial statements to the extent we sell or cease to hold a controlling interest in subsidiaries or groups of assets within a foreign entity.

3.
Business Acquisitions

On July 31, 2013, we completed the purchase of 100% of the shares of Toshiba Electronics Malaysia Sdn. Bhd., Toshiba’s power discrete semiconductor packaging and test operation in Malaysia, and subsequently changed the name of the entity to Amkor Technology Malaysia Sdn. Bhd. The total price for the shares was approximately ¥6 billion ($60 million), based on the estimated net asset value at closing. The price for the shares is subject to adjustment to the extent the actual net asset value at closing was more or less than the estimate. We paid ¥4.1 billion ($42 million) in cash at closing and are obligated to pay the remaining ¥1.9 billion ($18 million) by March 31, 2014. We were also granted a non-exclusive, royalty bearing license by Toshiba to certain intellectual property rights for providing packaging and test services for power discrete and certain other semiconductor products. The license has a royalty cap of ¥1.5 billion. Under the purchase method of accounting, we allocated the purchase price to the assets acquired and liabilities assumed based on their estimated fair values on the date of acquisition. We did not record any goodwill as a result of the acquisition.

4.
Share-Based Compensation Plans

Our share-based compensation is measured at fair value and expensed over the service period (generally the vesting period). The amount of compensation expense to be recognized is adjusted for an estimated forfeiture rate which is based on historical data. The following table presents share-based compensation expense attributable to stock options and restricted shares:
 
For the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
Stock options
$
883

 
$
1,160

 
$
2,025

Restricted shares
2,088

 
1,560

 
2,985

Total share-based compensation expense
$
2,971

 
$
2,720

 
$
5,010




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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


The following table presents share-based compensation expense included in the Consolidated Statements of Income:
 
For the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
Selling, general and administrative
$
2,591

 
$
2,368

 
$
4,363

Research and development
380

 
352

 
647

Total share-based compensation expense
$
2,971

 
$
2,720

 
$
5,010


There is no corresponding deferred income tax benefit for stock options or restricted shares.

Equity Incentive Plans

Amended and Restated 2007 Equity Incentive Plan.  On August 6, 2007, our shareholders approved the 2007 Equity Incentive Plan. On May 8, 2012, our shareholders considered certain changes to the plan which was approved as the Amended and Restated 2007 Equity Incentive Plan, (the “2007 Plan”) that provides for the grant of the following types of incentive awards: (i) stock options, (ii) restricted stock, (iii) restricted stock units, (iv) stock appreciation rights, (v) performance units and performance shares and (vi) other stock or cash awards. Those eligible for awards include employees, directors and consultants who provide services to Amkor and its subsidiaries. The initial effective date of this plan was January 1, 2008, and there were originally 17,000,000 shares of our common stock reserved for issuance under the 2007 Plan.

2003 Nonstatutory Inducement Grant Stock Plan.  On September 9, 2003, we initiated the 2003 Nonstatutory Inducement Grant Stock Plan (the “2003 Plan”). The 2003 Plan generally provides for the grant to employees, directors and consultants of stock options and stock purchase rights and is generally used as an inducement benefit for the purpose of retaining new employees. There is a provision for an annual replenishment to bring the number of shares of common stock reserved for issuance under the plan up to 300,000 as of each January 1.

1998 Stock Plan.  The 1998 Stock Plan terminated in January 2008. The 1998 Stock Plan generally provided for grants to employees, directors and consultants of stock options and stock purchase rights. The options granted vest over a two to five year period.

A summary of the stock plans, the respective plan termination dates and shares available for grant as of December 31, 2013, is shown below:
Stock Plans
 
Amended and Restated
2007 Equity
Incentive Plan
 
2003
Inducement Plan
Contractual life (years)
 
10
 
10
Plan termination date
 
Board of Directors
Discretion
 
Board of Directors
Discretion
Shares available for grant at December 31, 2013 (in thousands)
 
11,580
 
471

Stock options

Stock options are generally granted with an exercise price equal to the market price of the stock at the date of grant. Substantially all of the options granted are exercisable pursuant to a two to five year vesting schedule and the term of the options granted is no longer than ten years. Upon option exercise, we may issue new shares of common or treasury stock.

In order to calculate the fair value of stock options at the date of grant, we use the Black-Scholes option pricing model. Expected volatilities are based on historical performance of our stock. We also use historical data to estimate the timing and amount of option exercises and forfeitures within the valuation model. The expected term of the options is based on evaluations of historical and expected future employee exercise behavior and represents the period of time that options


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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


granted are expected to be outstanding. The risk-free interest rate for periods within the contractual life of the option is based on the U.S. Treasury yield curve in effect at the time of grant.

The following table summarizes our stock option activity for the year ended December 31, 2013:
 
Number of
Shares
(In thousands)
 
Weighted Average
Exercise Price
per Share
 
Weighted Average
Remaining
Contractual Term
(Years)
 
Aggregate
Intrinsic
Value
(In thousands)
Outstanding at December 31, 2012
4,893
 
$
9.52

 
 
 
 
Granted
2,085
 
4.39

 
 
 
 
Exercised
(96)
 
4.65

 
 
 
 
Forfeited or expired
(2,009)
 
11.69

 
 
 
 
Outstanding at December 31, 2013
4,873
 
$
6.52

 
5.74
 
$
4,661

Fully vested at December 31, 2013 and expected to vest thereafter
4,834
 
$
6.54

 
5.71
 
$
4,594

Exercisable at December 31, 2013
2,688
 
$
8.22

 
2.70
 
$
926


The following assumptions were used to calculate weighted average fair values of the options granted:
 
For the Year Ended December 31,
 
2013
 
2012
 
2011
Expected life (in years)
6.2

 
6.0

 
6.2

Risk-free interest rate
1.7
%
 
1.0
%
 
2.4
%
Volatility
60
%
 
65
%
 
67
%
Dividend yield

 

 

Weighted average grant date fair value per option granted
$
2.49

 
$
2.68

 
$
4.06


The intrinsic value of options exercised for the years ended December 31, 2013, 2012 and 2011 was $0.1 million, $0.1 million and $0.4 million, respectively. For the years ended December 31, 2013, 2012 and 2011, cash received under all share-based payment arrangements was $0.4 million, $0.2 million and $0.8 million, respectively. The related cash receipts are included in financing activities in the accompanying Consolidated Statements of Cash Flows. Total unrecognized compensation expense from stock options, net of a forfeiture estimate, was $4.4 million as of December 31, 2013, which is expected to be recognized over a weighted-average period of approximately 3.4 years beginning January 1, 2013. To the extent that the actual forfeiture rate is different than what we have anticipated, the share-based compensation expense related to these options will be different from our expectations.

Restricted Shares

We grant restricted shares to employees under the 2007 Plan. The restricted shares vest ratably over four years, with 25% of the shares vesting at the end of the first year and the remainder vesting monthly or quarterly thereafter, depending on the grant, such that 100% of the shares will become vested on the fourth anniversary of the award, subject to the recipient’s continued employment with us on the applicable vesting dates. In addition, provided that the restricted shares have not been forfeited earlier, for certain grants, the restricted shares will vest upon the recipient’s death, disability or retirement, or upon a change in control of Amkor or, in some cases, upon retirement. Although ownership of the restricted shares does not transfer to the recipients until the shares have vested, recipients have voting and dividend rights on these shares from the date of grant. The value of the restricted shares is determined based on the fair market value of the underlying shares on the date of the grant and is recognized ratably over the vesting period or to the date on which the recipient becomes retirement eligible, if shorter. Upon vesting of restricted stock awards, we may issue new shares of common or treasury stock.



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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


The 2007 Plan and the terms of certain share grants provide that for certain grants, when a recipient’s age plus years of service equals or exceeds 75, the recipient will be eligible to voluntarily retire and become fully vested in their applicable restricted shares upon retirement. Consequently, under federal tax law, when a recipient becomes retirement eligible, the employee is immediately taxable on 100% of their applicable restricted shares whether or not the recipient actually retires. Upon the earlier of retirement eligibility or vesting of the applicable restricted shares, the recipient has a tax liability for applicable grants and pursuant to the recipient’s award agreement, a portion of the restricted shares are withheld to satisfy the recipient’s statutory minimum tax withholding obligations. The shares withheld are accounted for as treasury stock at cost, which is determined by the closing stock price per share on the applicable date of vesting or retirement eligibility.

The following table summarizes our restricted share activity for the year ended December 31, 2013:
 
Number of
Shares
(In thousands)
 
Weighted Average
Grant Date
Fair Value
(Per Share)
Nonvested at December 31, 2012
816

 
$
5.61

Awards granted
750

 
4.50

Awards vested
(277
)
 
6.19

Awards forfeited
(117
)
 
4.92

Nonvested at December 31, 2013
1,172

 
$
4.83


Awards vested of 0.3 million, included less than 0.1 million shares for retirement eligible recipients whose applicable restricted shares are treated for accounting and tax purposes as if vested when they meet the retirement eligible date. The fair value of shares vested was $1.4 million, $1.7 million and $2.6 million during 2013, 2012 and 2011, respectively.

Total unrecognized compensation cost, net of a forfeiture estimate, was $4.3 million as of December 31, 2013, which is expected to be recognized over a weighted average period of approximately 3.0 years beginning January 1, 2013. To the extent that the actual forfeiture rate is different than what we have anticipated, the share-based compensation expense related to these awards will be different from our expectations.

5.
Other Income and Expense

Other income and expense consists of the following:
 
December 31,
 
2013
 
2012
 
2011
 
(In thousands)
Interest income
$
(3,785
)
 
$
(3,160
)
 
$
(2,749
)
Foreign currency (gain) loss
(5,626
)
 
4,185

 
2,178

Loss on debt retirement, net
12,330

 
1,199

 
15,531

Other income, net
(705
)
 
(1,586
)
 
(1,030
)
Total other expense, net
$
2,214

 
$
638

 
$
13,930




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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


6.
Income Taxes

Geographic sources of income (loss) before income taxes are as follows:

For the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
United States
$
(36,829
)
 
$
17,062

 
$
(8,097
)
Foreign
160,816

 
37,049

 
101,231

Total income before income taxes
$
123,987

 
$
54,111

 
$
93,134


The provision for income taxes includes current federal, state and foreign taxes payable and those deferred because of temporary differences between the financial statement and the tax bases of assets and liabilities.

The components of the provision (benefit) for income taxes are as follows:
 
For the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
Current
 
 
 
 
 
Federal
$

 
$

 
$

State

 
(75
)
 
377

Foreign
30,902

 
10,998

 
8,986

 
30,902

 
10,923

 
9,363

Deferred
 
 
 
 
 
Federal
(8,556
)
 
1,859

 
2,356

State
9

 
266

 
337

Foreign
291

 
3,953

 
(4,932
)
 
(8,256
)
 
6,078

 
(2,239
)
Total provision
$
22,646

 
$
17,001

 
$
7,124




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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


The reconciliation between the U.S. federal statutory income tax rate of 35% and our income tax provision is as follows:
 
For the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
U.S. federal tax at 35%
$
43,396

 
$
18,939

 
$
32,559

State taxes, net of federal benefit
1,124

 
1,126

 
1,451

Foreign income taxed at different rates
(17,814
)
 
(14,717
)
 
(22,507
)
Foreign exchange gain (loss)
844

 
12,329

 
(5,966
)
Change in valuation allowance
(32,415
)
 
(3,112
)
 
(8,672
)
Adjustments related to prior years
2,727

 
(2,464
)
 
3,582

Income tax credits generated
(2,622
)
 
(1,370
)
 
(466
)
Repatriation of foreign earnings and profits
6,499

 
3,240

 
3,388

Expiration of capital loss carryforward
15,555

 

 

Equity in earnings of J-Devices

 
2,404

 
3,047

Acquisition expenses
1,381

 

 

Debt conversion costs

4,067

 

 

Other
(96
)
 
626

 
708

Total
$
22,646

 
$
17,001

 
$
7,124


During 2013, we incurred costs which are not deductible for income tax purposes including certain costs in connection with the exchange of the 2014 Notes for shares of our common stock and certain costs in connection with our purchase of the shares of Amkor Technology Malaysia Sdn. Bhd.

Income tax expense in 2012 and 2011 includes deferred taxes on undistributed earnings from our investment in J-Devices. In 2013, deferred taxes were not required as a result of a change in our ownership structure of our investment in J-Devices.



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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


The following is a summary of the components of our deferred tax assets and liabilities:
 
December 31,
 
2013
 
2012
 
(In thousands)
Deferred tax assets:
 
 
 
Net operating loss carryforwards
$
147,905

 
$
155,270

Capital loss carryforwards

 
18,221

Income tax credits
27,751

 
31,665

Property, plant and equipment
14,390

 
283

Accrued liabilities
57,374

 
46,045

Unrealized foreign exchange loss
3,893

 
3,949

Other
15,137

 
19,252

Total deferred tax assets
266,450

 
274,685

Valuation allowance
(179,183
)
 
(209,757
)
Total deferred tax assets net of valuation allowance
87,267

 
64,928

Deferred tax liabilities:
 
 
 
Property, plant and equipment
21,716

 
3,263

Deferred gain
6,295

 
6,899

Other
1,967

 
13,031

Total deferred tax liabilities
29,978

 
23,193

Net deferred tax assets
$
57,289

 
$
41,735

Recognized as:
 
 
 
Other current assets
$
10,729

 
$
12,615

Other assets
47,609

 
40,047

Accrued expenses
(97
)
 
(800
)
Other non-current liabilities
(952
)
 
(10,127
)
Total
$
57,289

 
$
41,735


In 2013, the valuation allowance on our deferred tax assets decreased by $30.6 million primarily as a result of the utilization of domestic net operating loss carryforwards and expiring capital losses. Also during 2013, we concluded that sufficient net positive evidence existed to release the valuation allowance against the deferred tax assets at one of our foreign jurisdictions. The recent trend of improving taxable operating results in this jurisdiction continued in 2013, and we believe this recent history of earnings is sustainable and sufficient to fully realize the deferred tax assets in this jurisdiction.

In 2012, the valuation allowance on our deferred tax assets decreased by $4.5 million primarily as a result of the utilization of domestic net operating loss carryforwards partially offset by an increase associated with losses and reserves in certain foreign jurisdictions.

In 2011, the valuation allowance on our deferred tax assets decreased by $9.3 million primarily as a result of the write-off of net operating loss carryforwards in connection with the liquidation of our Singapore manufacturing operations and the reorganization of the corporate structure of our Philippine manufacturing operations.

As a result of certain income tax accounting realization requirements with respect to accounting for share-based compensation, the table of deferred tax assets and liabilities shown above does not include certain deferred tax assets at December 31, 2013 and 2012 that arose directly from tax deductions related to equity compensation that is greater than the compensation recognized for financial reporting. If such deferred tax assets are subsequently realized, they will be recorded


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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


to contributed capital in the amount of $6.6 million. As a result of net operating loss carryforwards, we were not able to recognize the excess tax benefits of stock option deductions in 2013 because the deductions did not reduce income tax payable.

As a result of certain capital investments, export commitments and employment levels, income from operations in China, Korea, Malaysia, the Philippines and Taiwan was subject to reduced income tax rates and in some cases is exempt from income taxes. The reduced tax rates or tax exemptions expire at various dates through 2022. We recognized $4.8 million, $13.7 million and $5.7 million in tax benefits as a result of the tax holidays in 2013, 2012 and 2011, respectively. The benefit of the tax holidays on diluted earnings per share was approximately $0.02, $0.06 and $0.02 for 2013, 2012 and 2011, respectively.

Our net operating loss carryforwards (“NOL’s”) are as follows:
 
For the Year Ended
December 31,
 
 
 
2013
 
2012
 
Expiration
 
(In thousands)
 
 
U.S. Federal NOL’s
$
342,770

 
$
363,913

 
2021-2033
U.S. State NOL’s
197,618

 
210,539

 
2014-2031
Foreign NOL’s
38,337

 
56,393

 
2014-2022

The deferred tax assets associated with certain of our foreign net operating losses have been reserved with a valuation allowance. The deferred tax assets associated with our U.S. federal and state net operating losses and capital losses available for carryforward have been fully reserved with valuation allowances at December 31, 2013 and 2012. Also, our ability to utilize our U.S. net operating and capital loss carryforwards may be limited in the future if we experience an ownership change as defined by the Internal Revenue Code.

At December 31, 2013, we have various tax credits available to be carried forward including U.S. foreign income tax credits totaling $8.1 million, expiring in 2016 and income tax credits totaling $15.4 million expiring in varying amounts through 2018 at our subsidiary in Korea. The deferred tax assets associated with the U.S. foreign income tax credits have been fully reserved with a valuation allowance. Income tax credits generated by certain of our foreign subsidiaries in 2013, 2012 and 2011 have been recognized in our income tax provision.

Income taxes have not been provided on approximately $512.4 million of the undistributed earnings of our foreign subsidiaries at December 31, 2013, over which we have sufficient influence to control the distribution of such earnings and have determined that substantially all such earnings have been reinvested indefinitely. These earnings could become subject to either or both federal income tax and foreign withholding tax if they are remitted as dividends, if foreign earnings are loaned to any of our domestic companies, or if we sell our investment in certain subsidiaries. We estimate that repatriation of these foreign earnings would generate additional foreign withholding taxes of approximately $6.3 million and insignificant U.S. federal income tax after foreign tax credits.

In 2011, we provided U.S. income tax on approximately $8.9 million of foreign earnings from a Singapore subsidiary where we made the decision to commence liquidation. The U.S. income tax of $3.1 million on these foreign earnings was fully offset by the tax benefit of our U.S. net operating losses.



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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


We operate in and file income tax returns in various U.S. and foreign jurisdictions which are subject to examination by tax authorities. Current examinations include our 2010 Philippines income tax return and our 2008-2012 Korean income tax returns. Our tax returns for open years in all jurisdictions are subject to changes upon examination. Summarized below are the years subject to examination for our largest subsidiaries.
Jurisdiction
 
Years
United States
 
2010-2013
Korea
 
2008-2013
Philippines
 
2010-2013
Japan
 
2008-2013
China
 
2008-2013
Singapore
 
2009-2013
Malaysia
 
2007-2013
Taiwan
 
2010-2013

A reconciliation of the beginning and ending gross amount of unrecognized tax benefits is as follows:
 
For the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
Balance at January 1
$
8,218

 
$
7,930

 
$
10,503

Additions based on tax positions related to the current year
17,752

 
5,551

 
24

Additions for tax positions of prior years
2,723

 
54

 
699

Reductions for tax positions of prior years
(108
)
 
(4,091
)
 
(2,248
)
Reductions related to settlements with tax authorities
(1,353
)
 
(1,226
)
 
(991
)
Reductions from lapse of statutes of limitations
(104
)
 

 
(57
)
Balance at December 31
$
27,128

 
$
8,218

 
$
7,930


The net increase in our unrecognized tax benefits was $18.9 million from December 31, 2012, to December 31, 2013. Our unrecognized tax benefits increased primarily because of $19.7 million of additions related to the characterization of deductions in a foreign jurisdiction and a $0.6 million addition related to revenue attribution. These increases were offset by $1.4 million of net reductions primarily related to the settlement of contested prior year deductions in a foreign jurisdiction. At December 31, 2013, all of our gross unrecognized tax benefits would reduce our effective tax rate, if recognized.

The liability related to our unrecognized tax benefits is $5.1 million as of December 31, 2013, and is reported as a component of other non-current liabilities. The unrecognized tax benefits in the table above include the reduction of deferred tax assets, which are not included in the liability reported as a component of other non-current liabilities.

It is reasonably possible that the total amount of unrecognized tax benefits could change significantly within 12 months. Given the number of years subject to examination, the number of matters being examined and the uncertainty of the timing of resolution of the audits, we are unable to estimate the full range of possible adjustments to the balance of our gross unrecognized tax benefits.

Our unrecognized tax benefits are subject to change as examinations of specific tax years are completed in the respective jurisdictions. Tax return examinations involve uncertainties and there can be no assurance that the outcome of examinations will be favorable.



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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


7.
Earnings Per Share

Basic earnings per share (“EPS”) is computed by dividing net income attributable to Amkor common shareholders by the weighted average number of common shares outstanding during the period. The weighted average number of common shares outstanding includes restricted shares held by retirement eligible recipients and is reduced for treasury stock. Unvested share-based compensation awards that contain nonforfeitable rights to dividends or dividend equivalents are considered participating securities and are included in the computation of EPS pursuant to the two-class method. We grant restricted shares which entitle recipients to voting and nonforfeitable dividend rights from the date of grant. As a result, we have applied the two-class method to determine EPS.

Diluted EPS is computed on the basis of the weighted average number of shares of common stock plus the effect of dilutive potential common shares outstanding during the period. Dilutive potential common shares include outstanding stock options, unvested restricted shares and convertible debt. The following table summarizes the computation of basic and diluted EPS:
 
For the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands, except per share data)
Net income attributable to Amkor
$
109,296

 
$
41,818

 
$
91,808

Income allocated to participating securities
(681
)
 
(212
)
 
(332
)
Net income available to Amkor common stockholders
108,615

 
41,606

 
91,476

Adjustment for dilutive securities on net income:
 
 
 
 
 
Net income reallocated to participating securities
93

 
212

 
332

Interest on 6.0% convertible notes due 2014, net of tax
9,440

 
16,103

 
16,103

Net income attributable to Amkor — diluted
$
118,148

 
$
57,921

 
$
107,911

 
 
 
 
 
 
Weighted average shares outstanding — basic
187,032

 
160,105

 
190,829

Effect of dilutive securities:
 
 
 
 
 
Stock options and restricted share awards
21

 
241

 
199

6.0% convertible notes due 2014
48,277

 
82,658

 
82,658

Weighted average shares outstanding — diluted
235,330

 
243,004

 
273,686

Net income attributable to Amkor per common share:
 
 
 
 
 
Basic
$
0.58

 
$
0.26

 
$
0.48

Diluted
0.50

 
0.24

 
0.39


The following table summarizes the potential shares of common stock that were excluded from diluted EPS, because the effect of including these potential shares was antidilutive:
 
For the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
Stock options and restricted share awards
4,890

 
4,416

 
5,070

2.5% convertible notes due 2011

 

 
1,094

6.25% convertible notes due 2013

 

 
695

Total potentially dilutive shares
4,890

 
4,416

 
6,859




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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


8.
Accounts Receivable, Trade

Accounts receivable, trade consist of the following:
 
December 31,
 
2013
 
2012
 
(In thousands)
Accounts receivable
$
389,157

 
$
391,969

Allowance for sales credits
(7,044
)
 
(2,255
)
Allowance for doubtful accounts
(76
)
 
(15
)
Total accounts receivable trade, net of allowances
$
382,037

 
$
389,699


9.
Inventories

Inventories consist of the following:
 
December 31,
 
2013
 
2012
 
(In thousands)
Raw materials and purchased components
$
147,292

 
$
166,691

Work-in-process
53,131

 
60,748

Total inventories
$
200,423

 
$
227,439


10.
Property, Plant and Equipment

Property, plant and equipment consist of the following:
 
December 31,
 
2013
 
2012
 
(In thousands)
Land
$
208,048

 
$
106,338

Land use rights
26,845

 
19,945

Buildings and improvements
911,258

 
904,919

Machinery and equipment
3,577,045

 
3,332,855

Software and computer equipment
193,641

 
191,132

Furniture, fixtures and other equipment
17,430

 
19,194

Construction in progress
27,039

 
24,670

 
4,961,306

 
4,599,053

Less accumulated depreciation and amortization
(2,954,753
)
 
(2,779,084
)
Total property, plant and equipment, net
$
2,006,553

 
$
1,819,969




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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


The following table presents depreciation expense as included in the Consolidated Statements of Income:
 
For the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
Cost of sales
$
377,022

 
$
336,542

 
$
302,011

Selling, general and administrative
15,331

 
19,487

 
22,387

Research and development
14,360

 
10,600

 
5,981

Total depreciation expense
$
406,713

 
$
366,629

 
$
330,379


In January 2013, we sold office space and land located in Chandler, Arizona for $22.8 million, net of selling costs of $1.2 million. During 2013, we also purchased land for a factory and research and development center in Korea for $100.3 million and incurred design costs and $1.7 million of capitalized interest associated with our spending.

11.
Intangibles

Intangibles as of December 31, 2013, consist of the following:
 
Gross
 
Accumulated
Amortization
 
Net
 
(In thousands)
Patents and technology rights
$
21,929

 
$
(18,740
)
 
$
3,189

Customer relationships
8,000

 
(8,000
)
 

Total intangibles
$
29,929

 
$
(26,740
)
 
$
3,189


Intangibles as of December 31, 2012, consist of the following:
 
Gross
 
Accumulated
Amortization
 
Net
 
(In thousands)
Patents and technology rights
$
22,169

 
$
(19,636
)
 
$
2,533

Customer relationships
8,000

 
(5,767
)
 
2,233

Total intangibles
$
30,169

 
$
(25,403
)
 
$
4,766


Amortization of identifiable intangible assets was $3.6 million, $3.9 million and $5.2 million in 2013, 2012 and 2011, respectively. Based on the amortizing assets recognized in our balance sheet at December 31, 2013, amortization for each of the next five years is estimated as follows:
 
Amortization
 
(In thousands)
2014
$
1,028

2015
736

2016
521

2017
488

2018
275

Thereafter
141

Total amortization
$
3,189




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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


12.
Investments

Investments consist of the following:
 
December 31,
 
2013
 
2012
 
Carrying
Value
 
Ownership
Interest
 
Carrying
Value
 
Ownership
Interest
 
(In thousands, except percentages)
Investment in unconsolidated affiliate
$
105,214

 
60.0
%
 
$
38,690

 
30.0
%

J-Devices Corporation

In October 2009, Amkor and Toshiba invested in Nakaya Microdevices Corporation (“NMD”) and formed a joint venture to provide semiconductor packaging and test services in Japan. As a result of the transaction, NMD changed its name to J-Devices Corporation. We invested $16.7 million for our original 30% equity interest and options to acquire additional equity interests. In April 2013, we completed the exercise of our option to increase our ownership interest in J-Devices from 30% to 60% for an aggregate purchase price of $67.4 million. J-Devices is owned 60% by Amkor, 34% by the former shareholders of NMD and 6% by Toshiba.

At December 31, 2013, our investment includes our 60% equity interest and options to acquire additional equity interests. The remaining options are exercisable at our discretion and permit us to increase our ownership interest in J-Devices up to 66% in 2014 by purchasing shares owned by Toshiba and up to 80% in 2015 and thereafter by purchasing shares owned by the other shareholders. In 2014 and beyond, Toshiba has the option, at its discretion, to sell shares it owns to us. If we decline Toshiba's offer to sell its shares to us, then J-Devices shall have the obligation to purchase the shares. If J-Devices is unable to fulfill its obligation to purchase the shares offered by Toshiba, then we will be obligated to purchase the shares offered by Toshiba. The options in 2014 and 2015 become exercisable in the fourth quarter of such year, and if exercised, we would expect closing to occur in the first half of the following year, subject to regulatory approval. After we own 80% or more shares, the original shareholders of NMD have a put option which allows them to sell their shares to us. The exercise price for all options is payable in cash and is determined using a formula based upon the net book value and a multiple of earnings before interest, taxes, depreciation and amortization of J-Devices.

The governance provisions currently applicable to J-Devices restrict our ability, even with our majority ownership, to cause J-Devices to take certain actions without the consent of the other investors. Accordingly, we account for our investment in J-Devices using the equity method of accounting. Under the equity method of accounting, we recognize our proportionate share of J-Devices’ net income or loss, which is after J-Devices' income taxes in Japan, during each accounting period as a change in our investment in unconsolidated affiliate. J-Devices' financial information is converted to U.S. GAAP and translated into U.S. dollars using Japanese yen as the functional currency. In addition, we record equity method adjustments as a change in our investment. The equity method adjustments include the amortization of a basis difference as a result of the cost of our original investment exceeding our proportionate share of J-Devices' equity. The net unamortized basis difference from our original investment was fully amortized as of December 31, 2013. Because our incremental proportionate share of J-Devices' equity exceeded the cost of our additional investment, these adjustments also include the amortization of an additional basis difference. The net unamortized basis difference from our incremental investment was $2.9 million at December 31, 2013.



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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


The following tables present summary financial information of J-Devices:
 
For the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
Summary income statement information for J-Devices
 
 
 
 
 
Net sales
$
825,135

 
$
531,530

 
$
576,421

Gross profit
83,778

 
61,003

 
82,729

Net income
16,538

 
20,299

 
25,412

 
December 31,
 
2013
 
2012
 
(In thousands)
Summary balance sheet information for J-Devices
 
 
 
Current assets
$
352,628

 
$
240,759

Non-current assets (including property, plant and equipment)
234,241

 
201,459

Current liabilities (including debt)
298,401

 
225,531

Total debt
131,275

 
144,733

Non-current liabilities (including debt)
108,928

 
96,612

Total stockholders' equity
179,540

 
120,075


In conjunction with entering into the joint venture, one of our existing subsidiaries in Japan purchased packaging and test equipment from Toshiba for $44.7 million and leased the equipment to J-Devices under an agreement which was accounted for as a direct financing lease. At the end of the lease in October 2012, J-Devices purchased the remaining equipment for $8.8 million, which was paid in January 2013.

Our share of the undistributed retained earnings of J-Devices amounted to approximately $31.8 million as of December 31, 2013.

13.
Accrued Expenses

Accrued expenses consist of the following:
 
December 31,
 
2013
 
2012
 
(In thousands)
Payroll and benefits
$
75,909

 
$
56,651

Deferred revenue and customer advances
44,764

 
52,773

Accrued royalties (Note 19)
43,324

 
33,324

Accrued interest
21,807

 
19,048

Acquisition payable (Note 3)
17,897

 

Income taxes payable
17,528

 
8,341

Accrued severance plan obligations (Note 15)
11,197

 
9,516

Other accrued expenses
31,826

 
33,311

Total accrued expenses
$
264,252

 
$
212,964


Accrued royalties relate to our estimate of royalties due as a result of our pending patent license litigation (Note 19).


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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


14.
Debt

Following is a summary of short-term borrowings and long-term debt:
 
December 31,
 
2013
 
2012
 
(In thousands)
Debt of Amkor Technology, Inc.:
 
 
 
Senior secured credit facilities:
 
 
 
$150 million revolving credit facility, LIBOR plus 1.5%-2.25%, due June 2017
$

 
$

Senior notes:
 
 
 
7.375% Senior notes, due May 2018
345,000

 
345,000

6.625% Senior notes, due June 2021, $75 million related party
400,000

 
400,000

6.375% Senior notes, due October 2022 (1)
525,000

 
300,000

Senior subordinated notes:
 
 
 
6.0% Convertible senior subordinated notes (2)
56,350

 
250,000

Debt of subsidiaries:
 
 
 
Amkor Technology Korea, Inc.:
 
 
 
$41 million revolving credit facility, foreign currency funding-linked base rate plus 2.00%, due June 2016 (3)

 

Term loan, foreign currency funding-linked base rate plus 2.30%, due March 2015 (4)
80,000

 
100,000

Term loan, LIBOR plus 3.70%, due June 2016 (5)
70,000

 

Term loan, LIBOR plus 3.90% or 3.94%, due July 2017 (6)
90,000

 
137,000

Term loan, foreign currency funding-linked base rate plus 1.75%, due September 2017 (7)
10,000

 

Term loan, LIBOR plus 3.70%, due December 2019 (8)
70,000

 
13,000

Other:
 
 
 
Revolving credit facility, TAIFX plus a bank-determined spread, due April 2015 (Taiwan) (9)

 

 
1,646,350

 
1,545,000

Add: Unamortized premium (1)
6,390

 

Less: Short-term borrowings and current portion of long-term debt
(61,350
)
 

Long-term debt (including related party)
$
1,591,390

 
$
1,545,000

(1)
In September 2012, we issued $300.0 million of 6.375% Senior Notes due October 2022 (the “2022 Notes”). The 2022 Notes were issued at par and are senior unsecured obligations. Interest is payable semi-annually on April 1 and October 1 of each year, and commenced April 1, 2013. In May 2013, we issued an additional $225.0 million of 6.375% Senior Notes due October 2022 (the “Additional 2022 Notes”) under the same terms as the 2022 Notes. The Additional 2022 Notes were issued at a premium of 103% or $6.8 million. The net proceeds from the issuance of the Additional 2022 Notes were designated for general corporate purposes. We incurred $3.4 million of debt issuance costs associated with the Additional 2022 Notes.
(2)
In April 2009, we issued $250 million of our 6.0% Convertible Senior Subordinated Notes due April 2014 (the “2014 Notes”). The 2014 Notes are convertible at any time prior to the maturity date into our common stock at a price of approximately $3.02 per share, subject to adjustment. The 2014 Notes are subordinated to the prior payment in full of all of our senior debt. The 2014 Notes were purchased by certain qualified institutional buyers and an entity controlled by Mr. James J. Kim, our Executive Chairman of the Board of Directors. Mr. Kim's affiliate purchased $150.0 million of the 2014 Notes. In June 2013, we completed a tender offer for the 2014 Notes and


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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


exchanged $193.7 million of the 2014 Notes, including the $150.0 million held by Mr. Kim's affiliate, for an aggregate 64.0 million shares of our common stock and a cash payment of $11.6 million. The cash payment was equivalent to the remaining coupons for the tendered notes and was recorded as a charge in our Consolidated Statements of Income for the year ended December 31, 2013.
(3)
In June 2012, we entered into a $41.0 million revolving credit facility with a Korean Bank with a term of 12 months. Principal is payable upon maturity and interest is paid monthly. The loan is collateralized with substantially all the land, factories and equipment at our facilities in Korea. In June 2013, the facility was amended by extending the term by three years to June 2016. As of December 31, 2013, $41.0 million was available to be borrowed for general working capital purposes.
(4)
In March 2012, we entered into a loan agreement with a Korean bank pursuant to which we may borrow up to $100.0 million through March 2015. The loan is collateralized by substantially all the land, factories and equipment located at our facilities in Korea. Principal is payable at maturity, however an early repayment of $20.0 million was made in November 2013.
(5)
In April 2013, we entered into a loan agreement with a Korean bank pursuant to which we may borrow up to $150.0 million through April 2016. The loan is collateralized by substantially all the land, factories and equipment located at our facilities in Korea. Principal is payable at maturity. In December 2013, the loan agreement was amended which adjusted the base interest rate from 3.80% to 3.70%. As of December 31, 2013, $80.0 million was available to be borrowed for general working capital purposes and the repayment of inter-company debt.
(6)
In June 2012, we entered into a $150.0 million secured term loan for five years with a Korean bank which is collateralized by substantially all the land, factories and equipment located at our facilities in Korea. The $150.0 million consists of two components, $50.0 million of the proceeds ("Tranche A") which was used to fully repay our term loan due July 2014 and $100.0 million ("Tranche B") to fund capital expenditures. The term loan was fully drawn in January 2013. Principal is payable upon maturity; however, an early repayment of $60.0 million was made in December 2013.
(7)
In March 2013, we entered into a loan agreement with a Korean bank pursuant to which we may borrow up to $150.0 million through September 2017. The loan is collateralized by substantially all the land, factories and equipment located at our facilities in Korea. Principal is payable in quarterly installments of $5.0 million starting in December 2014, with the remaining balance due at maturity. As of December 31, 2013, $140.0 million was available to be borrowed for capital expenditures.
(8)
In November 2012, we entered into a loan agreement with a Korean bank pursuant to which we may borrow up to $100.0 million through March 2014. In November 2013, the loan agreement was amended which extended the borrowing period from November 2013 to March 2014. The loan is collateralized by substantially all the land, factories and equipment located at our facilities in Korea. Principal is payable upon maturity. As of December 31, 2013, $30.0 million was available to be borrowed for capital expenditures.
(9)
In September 2012, Amkor Technology Taiwan Ltd, a subsidiary in Taiwan, entered into a revolving credit facility. Availability under the revolving credit facility was originally $44.0 million and subsequent availability steps down $5.0 million every six months from the original available balance. Principal is payable at maturity. As of December 31, 2013, $29.0 million was available to be drawn for general corporate purposes and capital expenditures.
Interest Rates

As of December 31, 2013, we had a total of $1,646.4 million of debt of which 80.6% was fixed rate debt and 19.4% was variable rate debt. As of December 31, 2012, we had a total of $1,545.0 million of debt of which 83.8% was fixed rate debt and 16.2% was variable rate debt. The fixed rate debt consists of senior notes and senior subordinated notes. Our variable rate debt principally relates to our foreign borrowings and revolving lines of credit and any amounts outstanding under our $150.0 million senior and secured revolving line of credit.



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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


Interest is payable semiannually on each of the senior notes and senior subordinated notes and interest is payable semi-annually, quarterly or monthly on the variable rate debt. Refer to the table above for the interest rates on our fixed rate debt and to the table below for the interest rates on our variable rate debt.
 
Variable Interest Rates at December 31,
 
2013
 
2012
Amkor Technology, Inc.
 
 
 
Amkor Technology Korea, Inc.:
 
 
 
Term loan, foreign currency funding-linked base rate plus 2.30%, due March 2015
4.29
%
 
4.21
%
Term loan, LIBOR plus 3.70%, due June 2016
3.95
%
 

Term loan, LIBOR plus 3.90%, due July 2017 (Tranche A)
4.14
%
 
4.26
%
Term loan, LIBOR plus 3.94%, due July 2017 (Tranche B)
4.18
%
 
4.26
%
Term loan, foreign currency funding-linked base rate plus 1.75%, due
September 2017
3.76
%
 

Term loan, LIBOR plus 3.70%, due December 2019
3.95
%
 
4.01
%

Compliance with Debt Covenants

The debt of Amkor Technology, Inc. is structurally subordinated in right of payment to all existing and future debt and other liabilities of our subsidiaries. The indentures governing our senior and senior subordinated notes contain a number of affirmative and negative covenants which restrict our ability to pay dividends and could restrict our operations. We have never paid a dividend to our stockholders and we do not have any present plans for doing so. We were in compliance with all of our covenants as of December 31, 2013 and 2012.

Maturities
 
Total Debt
 
(In thousands)
Payments due for the year ending December 31,
 
2014
$
61,350

2015
85,000

2016
70,000

2017
90,000

2018
345,000

Thereafter
995,000

Total debt
$
1,646,350




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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


15.Pension and Severance Plans

U.S. Defined Contribution Plan

We have a defined contribution plan covering substantially all U.S. employees. Eligible employees can contribute up to 60% of their salary, subject to annual Internal Revenue Service limitations. We match in cash 75% of the employee’s contributions up to a defined maximum as determined on an annual basis. The expense for this plan was $1.8 million in 2013 and 2012 and $1.9 million in 2011.

Malaysia Defined Contribution Plan

We have a defined contribution plan under the Employees Provident Fund Act in Malaysia whereby employees contribute up to 11% of their salary. We contribute an amount equivalent to no less than 12% of the employees’ salaries up to a defined maximum into their individual accounts. The expense for this plan was $1.0 million in 2013.

Taiwan Defined Contribution Plan

We have a defined contribution plan under the Taiwanese Labor Pension Act in Taiwan whereby employees can contribute up to 6% of their salary. We contribute an amount equivalent to no less than 6% of the employees’ salaries up to a defined maximum into their individual accounts. The expense for this plan was $2.4 million in 2013 and $2.3 million in 2012 and 2011.

Korean Severance Plan

Our subsidiary in Korea participates in an accrued severance plan that covers employees with at least one year of service. To the extent eligible employees are terminated, our subsidiary in Korea would be required to make lump-sum severance payments on behalf of these eligible employees based on their length of service, seniority and rate of pay at the time of termination. Accrued severance benefits are estimated assuming all eligible employees were to terminate their employment at the balance sheet date. Our contributions to the National Pension Plan of the Republic of Korea are deducted from accrued severance benefit liabilities.

The changes to the balance of our severance accrual are as follows:
 
For the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
Balance at the beginning of year
$
126,762

 
$
106,715

 
$
88,899

Provision of severance benefits
26,550

 
19,667

 
26,705

Severance payments
(10,402
)
 
(8,520
)
 
(6,717
)
Loss (gain) on foreign currency
2,463

 
8,900

 
(2,172
)
 
145,373

 
126,762

 
106,715

Payments remaining with the National Pension Fund
(241
)
 
(249
)
 
(239
)
Total severance obligation balance at the end of year
145,132

 
126,513

 
106,476

Less current portion of accrued severance obligation (Note 13)
11,197

 
9,516

 
7,476

Non-current portion of severance obligation
$
133,935

 
$
116,997

 
$
99,000





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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


Foreign Defined Benefit Pension Plans

Our subsidiaries in Japan, Malaysia, the Philippines and Taiwan sponsor defined benefit plans (the “Plans”) that cover substantially all of their respective employees who are not covered by statutory plans. Charges to expense are based upon actuarial analyses.

The following table summarizes the Plans’ benefit obligations, fair value of the Plans’ assets and the funded status of the Plans at December 31, 2013 and 2012.
 
For the Year Ended
December 31,
 
2013
 
2012
 
(In thousands)
Change in projected benefit obligation:
 
 
 
Projected benefit obligation at beginning of year
$
80,528

 
$
78,897

Service cost
5,909

 
6,362

Interest cost
3,170

 
3,270

Benefits paid
(1,602
)
 
(1,168
)
Actuarial gains
(2,513
)
 
(3,899
)
Acquisition (Note 3)
13,017

 

Effects of curtailment
(176
)
 
554

Settlement
(8,701
)
 
(4,925
)
Foreign exchange (gain) loss
(8,060
)
 
1,437

Projected benefit obligation at end of year
81,572

 
80,528

Change in plan assets:
 
 
 
Fair value of plan assets at beginning of year
58,146

 
48,801

Actual gain on plan assets
5,159

 
3,500

Employer contributions
1,120

 
8,687

Settlement
(8,701
)
 
(4,925
)
Benefits paid
(1,602
)
 
(1,168
)
Foreign exchange (loss) gain
(3,818
)
 
3,251

Fair value of plan assets at end of year
50,304

 
58,146

Funded status of the Plans at end of year
$
(31,268
)
 
$
(22,382
)

The accrued benefit liability, included in pension and severance obligations in the Consolidated Balance Sheets, as of December 31, 2013 and 2012 was $31.3 million and $22.4 million, respectively. The accumulated benefit obligation as of December 31, 2013 and 2012 was $55.9 million and $54.6 million, respectively.



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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


The following table summarizes, by component, the change in accumulated other comprehensive income related to our Plans:
 
Initial Net
Obligation
 
Prior Service
Cost
 
Actuarial Net
(Loss) Gain
 
Total
 
(In thousands)
Balance at December 31, 2011, net of tax ($1.4 million)
$
(58
)
 
$
(31
)
 
$
(10,421
)
 
$
(10,510
)
Amortization included in net periodic pension cost, net of tax (less than $0.1 million)
6

 
219

 
181

 
406

Net gain arising during period, net of tax
(less than $0.1 million)

 

 
4,731

 
4,731

Adjustments to unrealized components of defined benefit pension plan included in other comprehensive income, net of tax ($0.1 million)
6

 
219

 
4,912

 
5,137

Balance at December 31, 2012, net of tax ($1.3 million)
$
(52
)
 
$
188

 
$
(5,509
)
 
$
(5,373
)
Amortization included in net periodic pension cost, net of tax (less than $0.1 million)
8

 
250

 
106

 
364

Net gain arising during period, net of tax
($0.2 million)

 

 
3,996

 
3,996

Adjustments to unrealized components of defined benefit pension plan included in other comprehensive income, net of tax ($0.3 million)
8

 
250

 
4,102

 
4,360

Balance at December 31, 2013, net of tax ($1.0 million)
$
(44
)
 
$
438

 
$
(1,407
)
 
$
(1,013
)
 
 
 
 
 
 
 
 
Estimated amortization of cost to be included in 2014 net periodic pension cost
$
5

 
$
211

 
$
66

 
$
282


Information for pension plans with benefit obligations in excess of plan assets are as follows:
 
December 31,
 
2013
 
2012
 
(In thousands)
Plans with underfunded or non-funded projected benefit obligation:
 
 
 
Aggregate projected benefit obligation
$
73,326

 
$
80,528

Aggregate fair value of plan assets
41,957

 
58,146

Plans with underfunded or non-funded accumulated benefit obligation:
 
 
 
Aggregate accumulated benefit obligation
24,877

 
17,816

Aggregate fair value of plan assets

 




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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


The following table summarizes net periodic pension costs:
 
For the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
Components of net periodic pension cost and total pension expense:
 
 
 
 
 
Service cost
$
5,909

 
$
6,362

 
$
5,744

Interest cost
3,170

 
3,270

 
3,274

Expected return on plan assets
(3,508
)
 
(3,188
)
 
(3,119
)
Amortization of transition obligation
7

 
7

 
8

Amortization of prior service cost
231

 
291

 
269

Recognized actuarial loss
135

 
218

 
83

Net periodic pension cost
5,944

 
6,960

 
6,259

Curtailment (gain) loss
(176
)
 
1,089

 
1,016

Settlement (gain) loss
(120
)
 
(100
)
 
565

Total pension expense
$
5,648

 
$
7,949

 
$
7,840


The following table summarizes the weighted-average assumptions used in computing the net periodic pension cost and projected benefit obligation at December 31, 2013, 2012 and 2011:
 
For the Year Ended December 31,
 
2013
 
2012
 
2011
Discount rate for determining net periodic pension cost
3.9
%
 
4.2
%
 
5.2
%
Discount rate for determining benefit obligations at year end
3.9
%
 
4.0
%
 
4.2
%
Rate of compensation increase for determining net periodic
pension cost
4.1
%
 
4.5
%
 
4.6
%
Rate of compensation increase for determining benefit obligations
at year end
4.1
%
 
4.1
%
 
4.5
%
Expected rate of return on plan assets for determining net periodic
pension cost
6.3
%
 
6.3
%
 
6.4
%

The measurement date for determining the Plans’ assets and benefit obligations is December 31, each year. Discount rates are generally derived from yield curves constructed from high-quality corporate or foreign government bonds, for which the timing and amount of cash outflows approximate the estimated payouts.

The expected rate of return assumption is based on weighted-average expected returns for each asset class. Expected returns reflect a combination of historical performance analysis and the forward-looking views of the financial markets and include input from our actuaries. We have no control over the direction of our investments in our defined benefit plans in Taiwan as the local Labor Standards Law Fund mandates such contributions into a cash account balance at the Bank of Taiwan. The defined benefit pension plans in Japan and Malaysia are non-funded plans, and as such, no assets exist related to these plans. Our investment strategy for our Philippine defined benefit plan is based on long-term, sustained asset growth through low to medium risk investments. The current rate of return assumption targets are based on an asset allocation strategy for our Philippine plan assets of 55% debt securities (primarily Philippines domestic and U.S.) and 45% equity securities (primarily U.S. and Europe). Philippine plan assets included Amkor common stock totaling $0.6 million and $0.4 million at December 31, 2013, and December 31, 2012, respectively.



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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


The fair value of our pension plan assets at December 31, 2013, by asset category utilizing the fair value hierarchy as discussed in Note 18, is as follows:
 
Quoted Prices
in Active
Markets for
Identical
Assets
(Level 1)
 
Significant
Other Observable
Inputs
(Level 2)
 
Total
 
(In thousands)
Cash and cash equivalents
$
4,542

 
$

 
$
4,542

Equity securities
 
 
 
 
 

Foreign securities
1,950

 

 
1,950

U.S. securities
18,223

 

 
18,223

 
20,173

 

 
20,173

U.S. fixed income funds
4,186

 

 
4,186

Bonds
 
 
 
 
 

U.S. government bonds

 
2,087

 
2,087

Foreign treasury notes
10,374

 

 
10,374

 
10,374

 
2,087

 
12,461

Taiwan retirement fund
8,840

 

 
8,840

Other

 
102

 
102

Total
$
48,115

 
$
2,189

 
$
50,304


The fair value of our pension plan assets at December 31, 2012, by asset category utilizing the fair value hierarchy as discussed in Note 18, is as follows:
 
Quoted Prices
in Active
Markets for
Identical
Assets
(Level 1)
 
Significant
Other Observable
Inputs
(Level 2)
 
Total
 
(In thousands)
Cash and cash equivalents
$
1,348

 
$

 
$
1,348

Equity securities
 
 
 
 
 

Foreign securities
394

 

 
394

U.S. securities
9,046

 

 
9,046

 
9,440

 

 
9,440

U.S. fixed income funds
1,714

 

 
1,714

Bonds
 
 
 
 
 

U.S. government bonds
2,070

 
6,448

 
8,518

Foreign government bonds
406

 

 
406

Foreign treasury notes
27,503

 

 
27,503

 
29,979

 
6,448

 
36,427

Taiwan retirement fund
8,720

 

 
8,720

Other
377

 
120

 
497

Total
$
51,578

 
$
6,568

 
$
58,146



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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


The Taiwan retirement fund category of our plan assets represents accounts that our subsidiaries in Taiwan have in a government labor retirement fund in the custody of the Bank of Taiwan. The accounts earn a minimum guaranteed rate of return. We have no control over the investment decisions of the fund which is invested in a mix of cash, domestic and foreign equity securities and domestic and foreign debt securities.

Our other category of plan assets included receivables and payables at December 31, 2013 and December 31, 2012.

We contributed $1.1 million, $8.7 million and $3.6 million to the Plans during 2013, 2012 and 2011, respectively, and we expect to contribute $2.5 million during 2014. We closely monitor the funded status of the Plans with respect to legislative requirements. We intend to make at least the minimum contribution required by law each year.

The estimated future benefit payments related to our foreign defined benefit plans are as follows:
 
Payments
 
(In thousands)
2014
$
2,663

2015
3,410

2016
2,901

2017
3,198

2018
4,047

2019 to 2023
33,275


16.
Accumulated Other Comprehensive Income and Loss

The following table reflects the changes in accumulated other comprehensive income and loss, net of tax:
 
Defined Benefit Pension
 
Foreign Currency
 
Equity Interest in J-Devices' Other Comprehensive Income (Loss)
 
Total
 
(In thousands)
Accumulated other comprehensive (loss) income at December 31, 2011
$
(10,510
)
 
$
19,034

 
$
2,325

 
$
10,849

Other comprehensive income (loss) before reclassifications
4,731

 
(2,688
)
 
(2,057
)
 
(14
)
Amounts reclassified from accumulated other comprehensive (loss) income
406

 

 

 
406

Other comprehensive income (loss)
5,137

 
(2,688
)
 
(2,057
)
 
392

Accumulated other comprehensive (loss) income at December 31, 2012
$
(5,373
)
 
$
16,346

 
$
268

 
$
11,241

Other comprehensive income (loss) before reclassifications
3,996

 
(4,895
)
 
(10,961
)
 
(11,860
)
Amounts reclassified from accumulated other comprehensive (loss) income
364

 

 

 
364

Other comprehensive income (loss)
4,360

 
(4,895
)
 
(10,961
)
 
(11,496
)
Accumulated other comprehensive (loss) income at December 31, 2013
$
(1,013
)
 
$
11,451

 
$
(10,693
)
 
$
(255
)

Amounts reclassified out of accumulated other comprehensive income are included as a component of net periodic pension cost (Note 15).



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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


17.
Treasury Stock

Stock Repurchase Program

Our Board of Directors previously authorized the repurchase of up to $300.0 million of our common stock, exclusive of any fees, commissions or other expenses. The purchase of stock under the program may be made in the open market or through privately negotiated transactions. Since inception of the program, we have purchased a total of 45.0 million shares at an aggregate purchase price of $208.4 million, net of $0.9 million of commissions. The timing, manner, price and amount of any repurchases will be determined by us at our discretion and will depend upon a variety of factors including economic and market conditions, the cash needs and investment opportunities for the business, price, applicable legal requirements and other factors. Our stock repurchase program has been and is expected to be funded with available cash and may be suspended or discontinued at any time. All shares repurchased are recorded as treasury stock at cost.

During the year ended December 31, 2013, we made no purchases under the stock repurchase program. During the year ended December 31, 2012, we purchased 16.5 million shares of common stock for an aggregate purchase price of $79.5 million, net of $0.3 million of commissions, for an average price of $4.83. At December 31, 2013, approximately $91.6 million was available to repurchase common stock pursuant to the stock repurchase program. At December 31, 2013 and 2012, there were no unsettled shares.

Shares for Tax Withholding

We withheld 0.1 million shares for each of the years ended December 31, 2013 and 2012, from restricted shares that vested during the respective period to satisfy tax withholding obligations. Minimum tax withholding obligations that arose on the vesting of restricted shares were $0.5 million and $0.6 million for the years ended December 31, 2013 and 2012, respectively. These shares are reflected as treasury stock at cost.

18.
Fair Value Measurements

The accounting framework for determining fair value includes a hierarchy for ranking the quality and reliability of the information used to measure fair value, which enables the reader of the financial statements to assess the inputs used to develop those measurements. The fair value hierarchy consists of three tiers as follows: Level 1, defined as quoted market prices in active markets for identical assets or liabilities; Level 2, defined as inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, model-based valuation techniques for which all significant assumptions are observable in the market or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities and Level 3, defined as unobservable inputs that are not corroborated by market data.

Our assets and liabilities recorded at fair value on a recurring basis include cash equivalent money market funds and restricted cash money market funds. Cash equivalent money market funds and restricted cash money market funds are invested in U.S. money market funds and various U.S. and foreign bank operating and time deposit accounts, which are due on demand or carry a maturity date of less than three months when purchased. No restrictions have been imposed on us regarding withdrawal of balances with respect to our cash equivalents as a result of liquidity or other credit market issues affecting the money market funds we invest in or the counterparty financial institutions holding our deposits. Money market funds are valued using quoted market prices in active markets for identical assets.

We also measure certain assets and liabilities, including property, plant and equipment, intangible assets and our investment in J-Devices, at fair value on a nonrecurring basis. For the year ended December 31, 2013, such measurements included the consideration of third party valuation reports based on a combination of market and cost approach valuation techniques. The valuation reports contained various inputs including semiconductor industry data, replacement costs, price lists and general information regarding the assets being evaluated. Nonrecurring fair value measurements related to property, plant and equipment impairments reflect the fair value of the assets at the dates the impairments were taken during the period.



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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


Our fair value measurements consist of the following:
 
December 31,
 
2013
 
2012
 
(In thousands)
Recurring fair value measurements:
 
 
 
Cash equivalent money market funds (Level 1)
$
300,352

 
$
151,066

Restricted cash money market funds (Level 1)
2,681

 
2,680

 
 
 
 
Nonrecurring fair value measurements:
 
 
 
Long-lived assets held for use or disposal (Level 3)
$
1,055

 
$
868

 
Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
Nonrecurring fair value measurements:
 
 
 
 
 
Losses on long-lived assets held for use or disposal (Level 3)
$
1,529

 
$
763

 
$
3,336


In 2013, $0.8 million of impairment losses were recorded in research and development expense, and $0.7 million were recorded in cost of sales. In 2012 and 2011, all impairment losses on property, plant and equipment were recorded in cost of sales.

We measure the fair value of our debt for disclosure purposes. The following table presents the fair value and carrying value of financial instruments that are not recorded at fair value on a recurring basis:
 
December 31, 2013
 
December 31, 2012
 
Fair
Value
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
(In thousands)
Senior notes (Level 1)
$
1,321,443

 
$
1,276,390

 
$
1,061,945

 
$
1,045,000

Convertible senior subordinated notes (Level 1)
102,585

 
56,350

 
371,975

 
250,000

Term loans (Level 2)
320,000

 
320,000

 
269,200

 
250,000

Total debt
$
1,744,028

 
$
1,652,740

 
$
1,703,120

 
$
1,545,000


The estimated fair value of the debt is based primarily on quoted market prices reported on or near the respective balance sheet dates for our senior and convertible senior subordinated notes. The estimated fair value of the debt of our subsidiaries was calculated using a discounted cash flow analysis, which utilized market based assumptions including forward interest rates adjusted for credit risk.



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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


19.
Commitments and Contingencies

We have a letter of credit sub-facility of $25.0 million under our $150.0 million senior secured revolving credit facility that matures in June 2017. As of December 31, 2013, we had $0.3 million of standby letters of credit outstanding and had an additional $24.7 million available for letters of credit. Such standby letters of credit are used in the ordinary course of our business and are collateralized by our cash balances.

We generally warrant that our services will be performed in a professional and workmanlike manner and in compliance with our customers’ specifications. We accrue costs for known warranty issues. Historically, our warranty costs have been immaterial.

Legal Proceedings

We are involved in claims and legal proceedings and may become involved in other legal matters arising in the ordinary course of our business. We evaluate these claims and legal matters on a case-by-case basis to make a determination as to the impact, if any, on our business, liquidity, results of operations, financial condition or cash flows. Except as indicated below, we believe that the ultimate outcome of these claims and proceedings, individually and in the aggregate, will not have a material adverse impact to us. Our evaluation of the potential impact of these claims and legal proceedings on our business, liquidity, results of operations, financial condition or cash flows could change in the future.

Proceedings with Tessera, Inc.

Since March 2006, we have been involved in several proceedings with Tessera, Inc. (“Tessera”) related to a license agreement (the “License Agreement”) entered into in 1996 between Tessera and our predecessor. The proceedings generally involve disputes about whether or not Amkor owes Tessera royalties under the License Agreement with respect to certain packages and the termination of the License Agreement. The main proceeding that is pending is with the International Court of Arbitration of the International Chamber of Commerce (the “ICC”) captioned Amkor Technology, Inc. v. Tessera, Inc. (the “2009 Arbitration”), which we initiated in August 2009. In that proceeding, the ICC arbitration panel issued partial awards and interim orders finding that royalties are due to Tessera with respect to certain asserted patents and packages and that the License Agreement was terminated by Tessera as of February 17, 2011. The arbitration panel reserved for later decision the issues of the amount of royalties and pre-judgment interest due, and the allocation of costs. The other pending arbitration proceedings with Tessera include a request for arbitration by Tessera filed in May 2011 seeking undisclosed damages and a declaration that the License Agreement had been terminated, and a proceeding initiated in July 2012 with respect to claims related to three additional U.S. patents.

In July 2012, Tessera filed a complaint in the U.S. District Court for the District of Delaware. The complaint seeks injunctive relief and damages with respect to Amkor's alleged infringement of one of the U.S. patents (U.S. Patent No. 6,046,076, the "'076 patent") that the arbitration panel found to be royalty bearing in the 2009 Arbitration. In November 2013, the parties agreed to stay the Delaware litigation pending certain determinations in the 2009 Arbitration.

In February 2013, Tessera publicly announced its intention to seek an amount in excess of $150 million in the 2009 Arbitration. That same month, we filed a petition in the Superior Court for San Francisco County (the "California Action") to vacate or correct a portion of the arbitration panel’s interim order relating to the panel’s authority to award royalties for the period after the termination of the License Agreement. The Superior Court has denied our request and we have appealed that decision to the California First District Court of Appeal.

In April 2013, we initiated an inter partes review (the “IPR”) proceeding with the Patent Trial and Appeal Board at the United States Patent and Trademark Office (“U.S. PTO”), requesting it to find certain claims of the ‘076 patent unpatentable, including the claim we were found to infringe during the arbitration. In October 2013, the U.S. PTO determined that there is a reasonable likelihood that we will prevail in challenging that claim and certain others.

In November 2013, Tessera filed a motion to terminate the IPR proceeding on procedural grounds. In January 2014, the U.S. PTO denied Tessera’s motion and the proceeding is scheduled to go forward on the merits with a hearing in May 2014.


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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


In October 2013 and January 2014, the arbitration panel issued additional interim orders which included, among other things, some substantive findings concerning the calculation of royalties under the License Agreement. In February 2014, Tessera filed a motion with the arbitration panel to enjoin us from proceeding with the IPR. We have filed a response with the arbitration panel requesting it to deny Tessera's motion and to stay a portion of the 2009 Arbitration pending final resolution of the IPR proceeding.

As a result of the latest interim order, we estimate the possible range of royalties due to Tessera in the 2009 Arbitration to be from $60 million to $135 million (excluding interest). Because we believe that no amount in the range constitutes a better estimate than any other amount within that range, we have recorded an aggregate charge to cost of goods sold of $60 million ($10.0 million in 2013 and $50.0 million in 2012), representing our estimate of the low end of the range of possible royalties owed to Tessera in respect of the 2009 Arbitration. Of the $60 million of charges we have recognized for royalties, we paid $16.7 million to Tessera in August 2012, plus related interest. As of December 31, 2013, our accrual for royalties for the 2009 Arbitration was $43.3 million, and our estimate of the possible range of royalties due to Tessera in respect of the 2009 Arbitration (net of the royalties paid in August 2012) is from $43.3 million to $118.3 million.

The ultimate amount of damages and interest we may owe to Tessera in connection with the several pending proceedings could be more or less than our estimate of the possible range of royalties due in the 2009 Arbitration. The final outcome of our litigation with Tessera depends upon a number of complex factors, including the panel's determination of which package families the patents apply to, whether those packages meet criteria previously laid out by the panel, overlaps among the packages, the final date through which royalties are applicable, whether we receive a favorable ruling in the California Action or IPR proceeding and other factors. We may adjust our accrual as information develops or upon the issuance of new rulings. We expect to record our estimate of interest accruing with the passage of time.

We strongly dispute Tessera's claims in these proceedings and intend to vigorously defend against them. However, the final outcome of these matters is uncertain, and an adverse result could have a material adverse effect on our results of operations, financial condition and cash flows.

Amkor Technology, Inc. v. Carsem (M) Sdn Bhd, Carsem Semiconductor Sdn Bhd, and Carsem Inc.

Since November 2003, we have been involved in several proceedings against Carsem (M) Sdn Bhd, Carsem Semiconductor Sdn Bhd, and Carsem Inc. (collectively “Carsem”) in which we allege that with its Carsem Dual and Quad Flat No-Lead Packages, Carsem has infringed on one or more of our MicroLeadFrame packaging technology patent claims. We initiated the action with the U.S International Trade Commission (the “ITC”) in Washington, D.C. seeking, under Section 337 of the Tariff Act of 1930, an exclusion order barring the importation by Carsem of infringing products. We also filed a complaint against Carsem in the U.S. District Court for the Northern District of California, alleging patent infringement and seeking an injunction, damages and costs. This District Court action has been stayed pending resolution of the ITC case.

The ITC determined that certain Carsem Dual and Quad Flat No-Lead Packages infringe some patent claims of Amkor's U.S. Patent No. 6,433,277 (the "277 Patent") but that these infringed claims are invalid and, as a result, there is no violation of the Tariff Act. We appealed the ITC's ruling of invalidity for the claims of the 277 Patent to the U.S. Court of Appeals for the Federal Circuit (the "Federal Circuit").

In 2012, the Federal Circuit reversed the ITC's determination of invalidity on the 277 Patent, denied Carsem's petition for a rehearing and remanded the matter to the ITC for further proceedings consistent with its ruling.

In January 2013, in response to Carsem, Inc.’s requests for reexamination of the 277 Patent, the U.S. PTO issued an Office Action rejecting all of the 277 Patent claims as invalid. Amkor believes that all of the 277 Patent claims are valid and filed a response to the Office Action in March 2013 contesting this finding. In January 2014, the U.S. PTO issued an Office Action maintaining the rejection of all claims of the 277 Patent as invalid. Amkor continues to believe its claims are valid and will respond to the Office Action accordingly.



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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


Leases

Future minimum lease payments under operating leases that have initial or remaining noncancelable lease terms in excess of one year are:
 
Lease Payments
 
(In thousands)
2014
$
23,380

2015
14,937

2016
4,116

2017
4,060

2018
4,031

Thereafter
6,445

Total
$
56,969


Rent expense amounted to $23.8 million, $13.2 million and $15.1 million for 2013, 2012 and 2011, respectively.

In order to provide packaging and test services, we purchase materials under various long-term supply contracts. Future minimum payments to be made under these contracts for the period 2014 through 2025 are $24.0 million.

20.
Business Segments, Customer Concentrations and Geographic Information

Beginning with the three months ended December 31, 2013, we have operated as a single operating segment as managed by our Chief Executive Officer, who is considered our chief operating decision maker ("CODM"). The change in operating segments was made in connection with the appointment of our new Chief Executive Officer and other functional organization changes, including the consolidation of our test services business unit with the associated packaging services business units. The CODM bears the ultimate responsibility for, and is actively engaged in, the allocation of resources and the evaluation of our operating and financial results. We have concluded that we have a single operating segment based on the following:
We are managed under a functionally-based organizational structure with the head of each function reporting directly to the CODM;
We assess performance, including incentive compensation, based on consolidated operating performance and financial results;
Our CODM allocates resources and makes other operating decisions based on specific customer business opportunities and
We have an integrated process for the design, development and manufacturing services we provide to all of our customers. We also have centralized sales and administrative functions.
The following table presents net sales by product group:
 
Net Sales for the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
Advanced products
$
1,451,664

 
$
1,302,145

 
$
1,124,701

Mainstream products
1,504,786

 
1,457,401

 
1,651,658

Total net sales
$
2,956,450

 
$
2,759,546

 
$
2,776,359




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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


The following table presents net sales by country based on customer location:
 
Net Sales for the Year Ended December 31,
 
2013
 
2012
 
2011
 
(In thousands)
Japan
$
394,834

 
$
349,360

 
$
340,302

Singapore
496,601

 
452,737

 
539,467

Thailand
116,376

 
139,134

 
111,748

Other foreign countries
743,425

 
675,365

 
697,229

Total foreign countries
1,751,236

 
1,616,596

 
1,688,746

United States
1,205,214

 
1,142,950

 
1,087,613

Total net sales
$
2,956,450

 
$
2,759,546

 
$
2,776,359


One customer accounted for 23.7%, 21.3% and 16.5% of consolidated net sales in 2013, 2012 and 2011, respectively. Another customer accounted for 10.5% of consolidated net sales in 2013, and another customer accounted for 11.3% of consolidated net sales in 2011.

The following table presents property, plant and equipment, net, based on the physical location of the asset:
 
Property, Plant and Equipment, Net
at December 31,
 
2013
 
2012
 
(In thousands)
China
$
524,967

 
$
409,822

Japan
10,799

 
17,545

Korea
916,777

 
907,844

Malaysia
61,080

 

Philippines
240,187

 
211,323

Taiwan
236,178

 
233,114

Other foreign countries
93

 
77

Total foreign countries
1,990,081

 
1,779,725

United States
16,472

 
40,244

Total property, plant and equipment, net
$
2,006,553

 
$
1,819,969




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AMKOR TECHNOLOGY, INC.
Notes to Consolidated Financial Statements — (Continued)


21.
Reductions in Force

As part of our ongoing efforts to improve our manufacturing operations and manage costs, we regularly evaluate our staffing levels and facility requirements compared to business needs. The following table summarizes our exit activities and reduction in force initiatives associated with these efforts. “Charges” represents the initial charge related to the exit activity. “Cash Payments” consists of the utilization of “Charges.” “Non-cash Amounts” consists of pension plan curtailments and settlements and foreign currency adjustments.
 
Employee
Separation
Costs
 
(In thousands)
Accrual at December 31, 2010
$
670

Charges, net
8,326

Cash Payments
(7,416
)
Non-cash Amounts
(1,580
)
Accrual at December 31, 2011

Charges, net
11,211

Cash Payments
(8,682
)
Non-cash Amounts
(922
)
Accrual at December 31, 2012
1,607

Charges, net
10,506

Cash Payments
(12,531
)
Non-cash Amounts
418

Accrual at December 31, 2013
$


Reductions in Force

During 2013, we reduced our workforce through workforce reduction programs. We recorded $10.5 million in net charges, of which $9.2 million and $1.3 million were charged to cost of sales and selling, general and administrative expenses, respectively. All amounts were paid as of December 31, 2013.

During 2012, we reduced our workforce through workforce reduction programs. We recorded $11.2 million in net charges including $1.0 million in net curtailment and settlement charges, of which $7.3 million and $3.9 million were charged to cost of sales and selling, general and administrative expenses, respectively. All amounts accrued at December 31, 2012 were classified in current liabilities.

During 2011, we reduced our workforce through a workforce reduction program. As a result, we recorded $8.3 million in net charges including $1.6 million in net curtailment and settlement charges, of which $7.7 million and $0.6 million were charged to cost of sales and selling, general and administrative expenses, respectively. All amounts were paid as of December 31, 2011.




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SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS

 
Balance at
Beginning of
Period
 
Additions (Credited) Charged to Expense
 
Write-offs
 
(a)
Other
 
Balance at
End of Period
 
(In thousands)
Deferred tax asset valuation allowance:
 
 
 
 
 
 
 
 
 
Year ended December 31, 2011
$
223,612

 
(509
)
 
(8,163
)
 
(671
)
 
$
214,269

Year ended December 31, 2012
214,269

 
(1,626
)
 
(1,486
)
 
(1,400
)
 
209,757

Year ended December 31, 2013
209,757

 
(16,860
)
 
(15,555
)
 
1,841

 
179,183

(a)
Column represents adjustments to the deferred tax asset valuation allowance directly through stockholders’ equity for changes in accumulated other comprehensive income related to our foreign defined benefit pension plans.


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Table of Contents

Item 9.
Changes In and Disagreements with Accountants on Accounting and Financial Disclosure

None.

Item 9A.
Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in our periodic reports to the Securities and Exchange Commission (“SEC”) is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to our management, including the Chief Executive Officer and the Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure, based on the definition of “disclosure controls and procedures” in Rule 13a-15(e) and Rule 15d-15(e) under the Securities Exchange Act of 1934, as amended. In designing and evaluating the disclosure controls and procedures, management recognizes that any disclosure controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management necessarily is required to apply its judgment in evaluating the cost-benefit relationship of possible disclosure controls and procedures.

We carried out an evaluation, under the supervision and with the participation of management, including our Chief Executive Officer and our Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures as of December 31, 2013, and concluded those disclosure controls and procedures were effective as of that date.

Management’s Report on Internal Control Over Financial Reporting

Management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rules 13a-15(f) and 15d-15(f). 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.

Internal control over financial reporting 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 assets of the company; (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 receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company 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.

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 and procedures may deteriorate.

Management conducted an assessment of the effectiveness of our internal control over financial reporting as of December 31, 2013, based on the framework established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”). Based on the results of this evaluation, our management concluded that our internal control over financial reporting was effective as of December 31, 2013, based on criteria in Internal Control — Integrated Framework (1992) issued by the COSO. However, in conducting our evaluation, we excluded Amkor Technology Malaysia Sdn. Bhd., acquired on July 31, 2013 as permitted by the Securities and Exchange Commission Staff. Amkor Technology Malaysia Sdn. Bhd. constituted approximately 4% of total assets as of December 31, 2013, and approximately 2% of net sales for the year then ended.

The effectiveness of our internal control over financial reporting as of December 31, 2013, has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which appears under Item 8 of this Annual Report on Form 10-K.



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Changes in Internal Control Over Financial Reporting

On July 31, 2013, we completed our acquisition of Amkor Technology Malaysia Sdn. Bhd. We have extended our oversight and monitoring processes that support internal control over financial reporting to include the acquired operations. We are continuing to integrate the acquired operations into our overall internal control over financial reporting. As previously reported, we continue to implement an enterprise resource planning (“ERP”) system over a multi-year program on a company-wide basis. In addition, we are also implementing a new shop floor management system in certain of our factories.

During the three months ended December 31, 2013, there were no changes in our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Item 9B.
Other Information

None.

PART III

Item 10.
Directors, Executive Officers and Corporate Governance

The information required by this Item 10, with the exception of information relating to the Code of Business Conduct as disclosed below, is incorporated herein by reference from the material included under the captions “Election of Directors,” “Executive Officers,” and “Section 16(a) Beneficial Ownership Reporting Compliance” in our definitive proxy statement (to be filed pursuant to Regulation 14A) for our 2014 Annual Meeting of Stockholders.

Additionally, our Code of Business Conduct, Code of Ethics for Directors, Corporate Governance Guidelines, and the charters of the Audit Committee, Nominating and Governance Committee and Compensation Committee of our Board of Directors are available and maintained on our web site (http://www.amkor.com). We intend to disclose on our web site future amendments or waivers of our Code of Business Conduct required to be disclosed pursuant to applicable rules and regulations.

Item 11.
Executive Compensation

The information required by this Item 11 is incorporated herein by reference from the material included under the captions “Executive Compensation,” “Compensation Committee Interlocks and Insider Participation” and “Report of the Compensation Committee of the Board of Directors” in our definitive proxy statement (to be filed pursuant to Regulation 14A) for our 2014 Annual Meeting of Stockholders.



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Table of Contents

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

The information required by this Item 12, with the exception of the equity compensation plan information presented below, is incorporated herein by reference to our definitive proxy statement (to be filed pursuant to Regulation 14A) for our 2014 Annual Meeting of Stockholders.

EQUITY COMPENSATION PLANS

The following table summarizes our equity compensation plans as of December 31, 2013:
 
(a)
Number of
Securities to be
Issued Upon
Exercise of
Outstanding
Options
(In thousands)
 
(b)
Weighted-Average
Exercise Price of
Outstanding
Options
 
(c)
Number of Securities
Remaining Available
for Future Issuance
Under Equity
Compensation Plans
(Excluding Securities
Reflected in Column(a)
(In thousands)
Equity compensation plans approved by stockholders (1)
4,873

 
$
6.52

 
11,580

Equity compensation plans not approved by stockholders (2)

 

 
471

Total equity compensation plans
4,873

 
 
 
12,051

(1)
As of December 31, 2013, a total of 11.6 million shares were reserved for issuance under the 2007 Plan. Shares available for issuance under our 2007 Plan can be granted pursuant to stock options, restricted stock, restricted stock units, stock appreciation rights, performance units and performance shares.
(2)
As of December 31, 2013, a total of 0.5 million shares were reserved for issuance under the 2003 Nonstatutory Inducement Grant Stock Plan, and there is a provision in this plan that restores the number of shares of common stock reserved for issuance under the plan to 0.3 million as of each January 1. On January 1, 2014, no additional shares were added to the plan pursuant to the annual restoration provision.

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

The information required by this Item 13 is incorporated herein by reference from the material included under the captions “Certain Relationships and Related Transactions” and “Proposal One — Election of Directors” in our definitive proxy statement (to be filed pursuant to Regulation 14A) for our 2014 Annual Meeting of Stockholders.

Item 14.
Principal Accountant Fees and Services

The information required by this Item 14 is incorporated herein by reference from the material included under the proposal “Ratification of Appointment of Independent Registered Public Accounting Firm” in our definitive proxy statement (to be filed pursuant to Regulation 14A) for our 2014 Annual Meeting of Stockholders.

PART IV

Item 15.
Exhibits and Financial Statement Schedules

(a) Financial Statements, Financial Statement Schedules and Exhibits

The financial statements and schedules filed as part of this Annual Report on Form 10-K are listed in the index under Part II, Item 8.

The exhibits required by Item 601 of Regulation S-K which are filed with this report or incorporated by reference herein, are set forth in the Exhibit Index. Management contracts or compensatory plans or arrangements are identified by an asterisk.



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SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this Annual Report on Form 10-K to be signed, on its behalf by the undersigned, thereunto duly authorized.
AMKOR TECHNOLOGY, INC.
By: 
/s/  Stephen D. Kelley
 
Stephen D. Kelley
President and Chief Executive Officer
 
Date:
February 28, 2014
POWER OF ATTORNEY
KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Stephen D. Kelley and Joanne Solomon, and each of them, his attorneys-in-fact, and agents, each with the power of substitution, for him and in his name, place and stead, in any and all capacities, to sign any and all amendments to this Report on Form 10-K, and all documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he might or could do in person, hereby ratifying and conforming all that said attorneys-in-fact and agents of any of them, or his or their substitute or substitutes, may lawfully do or cause to be done by virtue hereof.
Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.
Name
 
Title
 
Date
 
 
 
 
 
/s/  Stephen D. Kelley
 
President and Chief Executive Officer
 
February 28, 2014
Stephen D. Kelley
 
 
 
 
 
 
 
 
 
/s/  Joanne Solomon
 
Executive Vice President and Chief Financial Officer
 
February 28, 2014
Joanne Solomon
 
 
 
 
 
 
 
 
 
/s/  James J. Kim
 
Executive Chairman
 
February 28, 2014
James J. Kim
 
 
 
 
 
 
 
 
 
/s/  John T. Kim
 
Vice Chairman
 
February 28, 2014
John T. Kim
 
 
 
 
 
 
 
 
 
/s/  Roger A. Carolin
 
Director
 
February 28, 2014
Roger A. Carolin
 
 
 
 
 
 
 
 
 
/s/  Winston J. Churchill
 
Director
 
February 28, 2014
Winston J. Churchill
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 


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Table of Contents

Name
 
Title
 
Date
 
 
 
 
 
/s/  Robert R. Morse
 
Director
 
February 28, 2014
Robert R. Morse
 
 
 
 
 
 
 
 
 
/s/  John F. Osborne
 
Director
 
February 28, 2014
John F. Osborne
 
 
 
 
 
 
 
 
 
/s/  James W. Zug
 
Director
 
February 28, 2014
James W. Zug
 
 
 
 



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Table of Contents

EXHIBIT INDEX
2.1

 
Sales Contract of Commodity Premises between Shanghai Waigaoqiao Free Trade Zone Xin Development Co., Ltd. and Amkor Assembly & Test (Shanghai) Co., Ltd. dated May 7, 2004.(4)
3.1

 
Certificate of Incorporation.(1)
3.2

 
Certificate of Correction to Certificate of Incorporation.(3)
3.3

 
Restated Bylaws as amended on November 5, 2013.
4.1

 
Specimen Common Stock Certificate.(2)
4.2

 
Indenture, dated as of April 1, 2009, between Amkor Technology, Inc. and U.S. Bank National Association, as trustee regarding the 6.00% Convertible Senior Subordinated Notes due 2014.(8)
4.3

 
Form of Note for the 6.00% Convertible Senior Subordinated Notes due 2014.(8)
4.4

 
Letter Agreement, dated March 26, 2009, between Amkor Technology, Inc., James J. Kim and 915 Investments, LP.(8)
4.5

 
Indenture, dated May 4, 2010, by and between Amkor Technology, Inc. and U.S. Bank National Association, as trustee, regarding the 7.375% Senior Notes due 2018.(9)
4.6

 
Indenture, dated May 20, 2011, by and between Amkor Technology, Inc. and U.S. Bank National Association, as trustee, regarding the 6.625% Senior Notes due 2021.(11)
4.7

 
Letter Agreement, dated May 17, 2011, between Amkor Technology, Inc., James J. Kim and 915 Investments, LP.(11)
4.8

 
Indenture, dated September 21, 2012, by and between Amkor Technology, Inc. and U.S. Bank National Association, as trustee, regarding the 6.375% Senior Notes due 2022.(17)
10.1

 
Form of Indemnification Agreement for directors and officers.(2)
10.2

 
1998 Stock Plan, as amended.(7)*
10.3

 
Form of Stock Option Agreement under the 1998 Stock Plan.(5)*
10.4

 
Contract of Lease between Corinthian Commercial Corporation and Amkor/Anam Pilipinas Inc., dated October 1, 1990.(1)
10.5

 
Contract of Lease between Salcedo Sunvar Realty Corporation and Automated Microelectronics, Inc., dated May 6, 1994.(1)
10.6

 
Lease Contract between AAPI Realty Corporation and Amkor/Anam Advanced Packaging, Inc., dated November 6, 1996.(1)
10.7

 
2003 Nonstatutory Inducement Grant Stock Plan, as amended.(7)*
10.8

 
Amended and Restated 2007 Equity Incentive Plan.(14)*
10.9

 
Form of Stock Option Agreement under the Amended and Restated 2007 Equity Incentive Plan.(16)*
10.10

 
Form of Restricted Stock Award Agreement under the Amended and Restated 2007 Equity Incentive Plan. (16)*
10.11

 
Executive Incentive Bonus Plan.(14)*
10.12

 
Kun-Mortgage Agreement, dated March 30, 2007, between Woori Bank and Amkor Technology Korea, Inc.(6)
10.13

 
2009 Voting Agreement, dated as of March 26, 2009, between Amkor Technology, Inc., James J. Kim and 915 Investments, LP.(8)
10.14

 
Second Amended and Restated Loan and Security Agreement, dated as of June 28, 2012, among Amkor Technology, Inc., its subsidiaries from time to time party thereto, the lending institutions from time to time party thereto and Bank of America, N.A., as administrative agent.(15)
10.15

 
Amendment to Kun-Mortgage Agreement, dated May 24, 2010, by and between Amkor Technology Korea, Inc. and Woori Bank.(10)
10.16

 
Credit Facility Agreement, dated March 20, 2012, by and between Amkor Technology Korea, Inc. and Woori Bank.(13)
10.17

 
General Terms and Conditions for Bank Credit Transactions, dated March 20, 2012, between Woori Bank and Amkor Technology Korea, Inc.(13)
10.18

 
Loan Agreement, dated June 28, 2012, by and between Amkor Technology Korea, Inc. and The Korea Development Bank (15)


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Table of Contents

10.19

 
Factory Mortgage Agreement, dated June 28, 2012, by and between The Korea Development Bank and Amkor Technology Korea, Inc.(15)
10.20

 
Loan Agreement, dated November 23, 2012, by and between Amkor Technology Korea, Inc. and The Korea Development Bank.(18)

10.21

 
Form of Amendment to Factory Mortgage Agreement, dated November 23, 2012, by and between The Korea Development Bank and Amkor Technology Korea, Inc.(18)

10.22

 
Amendment to Loan Agreement, dated November 22, 2013, by and between Amkor Technology Korea, Inc. and The Korea Development Bank

10.23

 
Credit Facility Agreement, dated March 11, 2013, by and between Amkor Technology Korea, Inc. and Woori Bank (19)

10.24

 
General Terms and Conditions for Bank Credit Transactions, dated March 11, 2013, by and between Amkor Technology Korea, Inc. and Woori Bank (19)

10.25

 
Loan Agreement, dated April 29, 2013, by and between Amkor Technology Korea, Inc. and The Korea Development Bank.(22)

10.26

 
Amendment to Factory Mortgage Agreement, dated April 29, 2013, by and between Amkor Technology Korea, Inc. and The Korea Development Bank.(22)

10.27

 
Guarantee, dated April 29, 2013, by and between Amkor Technology, Inc. and The Korea Development Bank.(22)

10.28

 
Amendment to Loan Agreement, dated December 27, 2013, by and between Amkor Technology Korea, Inc. and The Korea Development Bank
10.29

 
Amendment to Kun Mortgage Agreement, dated April 19, 2013, by and between Amkor Technology Korea, Inc. and Woori Bank.(22)
10.30

 
Severance Agreement and Release, dated May 23, 2011, by and between James Fusaro and Amkor Technology, Inc.(12)*
10.31

 
Employment Offer Letter, dated April 30, 2013, between Amkor Technology, Inc. and Stephen D. Kelley.(20)*
10.32

 
Retirement Agreement and Release, dated May 8, 2013, between Amkor Technology, Inc. and Kenneth T. Joyce.(21)*
10.33

 
Separation and Consulting Agreement, dated July 17, 2013, between Amkor Technology, Inc. and Michael J. Lamble.(22)*
12.1

 
Computation of Ratio of Earnings to Fixed Charges
21.1

 
List of subsidiaries of the Registrant.
23.1

 
Consent of PricewaterhouseCoopers LLP.
31.1

 
Certification of Stephen D. Kelley, Chief Executive Officer of Amkor Technology, Inc., Pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934, as amended.
31.2

 
Certification of Joanne Solomon, Chief Financial Officer of Amkor Technology, Inc., Pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934, as amended.
32.1

 
Certification of Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS**

 
XBRL Instance Document
101.SCH**

 
XBRL Taxonomy Extension Schema Document
101.CAL**

 
XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB**

 
XBRL Taxonomy Extension Label Linkbase Document
101.PRE**

 
XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF**

 
XBRL Taxonomy Extension Definition Linkbase Document
*

 
Indicates management compensatory plan, contract or arrangement.
**

 
This information is furnished and not filed or a part of a registration statement or prospectus for purposes of Sections 11 or 12 of the Securities Act of 1933, is deemed not filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and otherwise is not subject to liability under these sections.



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Table of Contents

(1
)
 
Incorporated by reference to the Company’s Registration Statement on Form S-1 filed October 6, 1997 (File No. 333-37235).
(2
)
 
Incorporated by reference to the Company’s Registration Statement on Form S-1 filed on October 6, 1997, as amended on March 31, 1998 (File No. 333-37235).
(3
)
 
Incorporated by reference to the Company’s Registration Statement on Form S-1 filed on April 8, 1998, as amended on August 26, 1998 (File No. 333-49645).
(4
)
 
Incorporated by reference to the Company’s Quarterly Report on Form 10-Q filed August 6, 2004.
(5
)
 
Incorporated by reference to the Company’s Annual Report on Form 10-K filed on March 16, 2006.
(6
)
 
Incorporated by reference to the Company’s Quarterly Report on Form 10-Q filed May 4, 2007.
(7
)
 
Incorporated by reference to the Company's Quarterly Report on Form 10-Q filed August 7, 2008.
(8
)
 
Incorporated by reference to the Company’s Current Report on Form 8-K filed on April 1, 2009.
(9
)
 
Incorporated by reference to the Company’s Current Report on Form 8-K filed May 5, 2010.
(10
)
 
Incorporated by reference to the Company’s Current Report on Form 8-K filed May 27, 2010.
(11
)
 
Incorporated by reference to the Company's Current Report on Form 8-K filed May 20, 2011.
(12
)
 
Incorporated by reference to the Company's Quarterly Report on Form 10-Q filed August 4, 2011.
(13
)
 
Incorporated by reference to the Company's Current Report on Form 8-K filed March 23, 2012.
(14
)
 
Incorporated by reference to the Company's Proxy Statement on Schedule 14A filed April 5, 2012.
(15
)
 
Incorporated by reference to the Company's Current Report on Form 8-K filed on July 2, 2012.
(16
)
 
Incorporated by reference to the Company's Quarterly Report on Form 10-Q filed August 2, 2012.
(17
)
 
Incorporated by reference to the Company's Current Report on Form 8-K filed September 21, 2012.
(18
)
 
Incorporated by reference to the Company's Current Report on Form 8-K filed November 27, 2012.
(19
)
 
Incorporated by reference to the Company's Quarterly Report on Form 10-Q filed May 3, 2013.
(20
)
 
Incorporated by reference to the Company's Current Report on Form 8-K filed May 3, 2013.
(21
)
 
Incorporated by reference to the Company's Current Report on Form 8-K filed May 10, 2013.
(22
)
 
Incorporated by reference to the Company's Quarterly Report on Form 10-Q filed August 2, 2013.


101