William H. Timbers has served as President and Chief Executive Officer of USEC Inc. since 1998, following USEC’s privatization. He was appointed USEC Transition Manager in March 1993 by President Clinton, and from 1994 to 1998, he was President and CEO of the government-owned United States Enrichment Corporation. From 1991 to 1993, Mr. Timbers was President of The Timbers Corporation, an investment banking firm based in Stamford, Connecticut. Before that, he was a Managing Director of the investment banking firm of Smith Barney, Harris Upham & Co. Inc. in New York and San Francisco.

Joyce F. Brown is President of the Fashion Institute of Technology of the State University of New York. From 1994 to 1997, Ms. Brown was a professor of clinical psychology at the City University of New York, where she previously held several Vice Chancellor positions. From 1993 to 1994, she served as the Deputy Mayor for Public and Community Affairs in the Office of the Mayor of the City of New York. Ms. Brown is on the Boards of Directors of Transderm Laboratories Corporation and Unity Mutual Life Insurance Company.

Dan T. Moore, III is the founder, owner and president, since 1969, of the Dan T. Moore Company Inc., a developer of a number of advanced materials companies and technologies. Mr. Moore has also been Chairman of the Board of the Advanced Ceramics Corporation since 1993. He serves on the Boards of Directors of the Hawk Corporation, Invacare Corporation and the Cleveland Clinic Foundation.

John R. Hall served as Chairman of the Board of Ashland Inc. from 1981 to 1997 and as Chief Executive Officer from 1981 to 1996. He was Chairman of the Board of Arch Coal Inc. from 1997 to 1998, and a director until 1999. Mr. Hall is also a director of Banc One Corporation, The Canada Life Assurance Company, CSX Corporation, Humana Inc., LaRoche Industries Inc., and UCAR International Inc.