2010 Top 200 U.S. CEOs

Biography
David N. Weidman, 53, has been Chief Executive Officer and a member of the board of directors since December 2004. He became Chairman of the board of directors in February 2007. Mr. Weidman joined Celanese AG (the Company's predecessor) in September 2000 where he held a number of executive positions, most recently Vice Chairman and a member of its board of management. Before joining Celanese AG, Mr. Weidman held various leadership positions with AlliedSignal, most recently as the President of its performance polymers business. Mr. Weidman began his career in the chemical industry with American Cyanamid in 1980. He is the Chairman of the board of the American Chemistry Council and serves as a member of the boards of the National Advisory Council of the Marriott School of Management and the Society of Chemical Industry. He is also a member of the Advancement Counsel for Engineering and Technology for the Ira A. Fulton College of Engineering and Technology and a member of the board and Chairman of the finance committee of The Conservation Fund.