President, Chief Executive Officer, and Chairman of the Board Craig A. Rogerson has served as Chemtura's chairman, president and chief executive officer since December 2008. Mr. Rogerson had previously served as president, CEO and director of Hercules, Incorporated until its acquisition by Ashland, Incorporated on November 13, 2008. Mr. Rogerson joined Hercules in 1979 in the firm's Water Management Chemicals Division. In April 1997 he left Hercules to join Wacker Silicones Corporation, where he served as president and CEO. In May 2000, Mr. Rogerson rejoined Hercules as vice president, business operations of their BetzDearborn Division, eventually being named vice president and general manager of that division in August 2000. Prior to being named CEO of Hercules in December 2003, Mr. Rogerson held a variety of senior management positions with the company, including president of the FiberVisions and Pinova divisions, vice president Global Procurement, and COO. Mr. Rogerson serves on the boards of directors of PPL Corporation, the Society of Chemical Industry, and the American Chemistry Council, and on the advisory board of the Michigan State University Department of Chemical Engineering & Materials Science (MSU CHEM). He previously served on the boards of First State Innovation and the Delaware Business Roundtable.