Grace to Resume Quarterly Investor Calls on July 22, 2010

W. R. Grace & Co. (NYSE:GRA) today announced that it will resume quarterly investor calls. The company will release its second quarter financial results at 6:00 a.m. ET on Thursday, July 22 and host a conference call and webcast at 12:00 p.m. ET with management commentary and a question and answer session.

In their remarks, Fred Festa, Chairman, President and Chief Executive Officer, and Hudson La Force, Senior Vice President and Chief Financial Officer, will review second quarter results and accomplishments. To access the webcast, interested participants can go to the Investor Information – Conference Calls portion of the company’s web site, www.grace.com, on the day of the conference call and click on the webcast link.

Those without access to the Internet can listen to the remarks and Q&A by dialing +1.866.383.7989 (international callers dial +1.617.597.5328) and entering conference ID #41269186. Investors are advised to dial into the call at least ten minutes early in order to register. An audio replay will be available from 3:00 p.m. ET on July 22 until 11:59 p.m. ET on July 29. The replay will be accessible by dialing +1.888.286.8010 (international callers dial +1.617.801.6888) and entering conference call ID #90278560.

Grace is a leading global supplier of catalysts and other products to petroleum refiners; catalysts for the manufacture of plastics; silica-based engineered and specialty materials for a wide range of industrial applications; sealants and coatings for food and beverage packaging, and specialty chemicals, additives and building materials for commercial and residential construction. Founded in 1854, Grace has operations in over 40 countries. For more information, visit Grace’s web site at www.grace.com.