Cabot Microelectronics Corp.

William P. Noglows, 50, has served as our Chairman, President and Chief Executive Officer since November 2003. Mr. Noglows also is a director of Littlefuse, Inc. From 1984 through 2003, he served in various management positions at Cabot Corporation, culminating in serving as an executive vice president and general manager. While at Cabot Corporation, he was one of the primary founders of our company and was responsible for identifying and encouraging the development of the CMP application, which is the core of our business. Mr. Noglows had previously served as a director of our company from December 1999 until April 2002. Mr. Noglows received his B.S. in Chemical Engineering from the Georgia Institute of Technology.

William S. Johnson has served as our Vice President, Chief Financial Officer and Treasurer since April 2003. Prior to joining us, Mr. Johnson served as Executive Vice President and Chief Financial Officer for Budget Group, Inc. from August 2000 to March 2003. Before that, Mr. Johnson spent 16 years at BP Amoco in various senior finance and management positions, the most recent of which was President of Amoco Fabrics and Fibers Company. Mr. Johnson received his B.S. in Mechanical Engineering from the University of Oklahoma and his M.B.A. from the Harvard Business School.

Adam F. Weisman has served as our VP, Business Operations since May 2004. Prior to joining us, Mr. Weisman held various engineering and senior operations management positions with the General Electric Company from 1988 through 2004, including having served as the General Manager of Manufacturing for GE Plastics–Superabrasives, and culminating in serving as the Executive Vice President of Operations for GE Railcar Services. Prior to joining GE, he worked as an engineering team leader and pilot plant manager for E.I. Du Pont de Nemours & Company. Mr. Weisman holds a B.S. degree in Ceramic Engineering from Alfred University.

Clifford L. Spiro has served as Vice President of Research and Development since December 2003. Prior to joining us, Dr. Spiro served as Vice President of Research and Development at Ondeo-Nalco from 2001 through November 2003. Prior to that, Dr. Spiro held research and development management and senior technology positions at the General Electric Company from 1980 through 2001, the most recent of which was Global Manager–Technology for Business Development. Dr. Spiro received his B.S. in Chemistry from Stanford University and his Ph.D. in Chemistry from the California Institute of Technology.

Daniel J. Pike has served as our Vice President of Corporate Development since January 2004 and prior to that was our Vice President of Operations from December 1999. Mr. Pike served as our Director of Global Operations from 1996 to 1999. Prior to joining us, Mr. Pike worked for FMC Corporation as a Marketing Manager. Mr. Pike received his B.S. in Chemical Engineering from the University of Buffalo and his M.B.A. from the Wharton School of Business of the University of Pennsylvania.

Daniel S.Wobby has served as our Vice President of Global Sales since May 2008. Prior to that, Mr. Wobby served as Vice President of Asia Pacific Region since September 2005. Mr. Wobby previously served as Vice President of Greater China and Southeast Asia starting in February 2004 and as Corporate Controller and Principal Accounting Officer from 2000 to 2004. From 1989 to 1997, Mr. Wobby held various accounting and operations positions with Cabot Corporation culminating in serving as Director of Finance. Mr. Wobby earned a B.S. in Accounting from St. Michael’s College and an M.B.A. from the University of Chicago’s Graduate School of Business.

David Li has served as Vice President of Asia Pacific Region since May 2008. Prior to that, Mr. Li served as Managing Director - Korea and China since February 2007. Previously, David was the Global Business Director for Tungsten and Advanced Dielectrics since 2005. David joined CMC in 1998 and prior to the aforementioned assignments, David also held a variety of leadership positions in operations, sourcing and investor relations. Prior to joining CMC, David worked for UOP in marketing and process engineering. David has a BS in chemical engineering from Purdue University and an MBA from Kellogg, Northwestern University.

H. Carol Bernstein has served as our Vice President, Secretary and General Counsel since August 2000. From January 1998 until joining us, Ms. Bernstein served as the General Counsel and Director of Industrial Technology Development of Argonne National Laboratory, which is operated by the University of Chicago for the United States Department of Energy. From May 1985 until December 1997, she served in various positions with the IBM Corporation, culminating in serving as an Associate General Counsel, and was the Vice President, Secretary and General Counsel of Advantis Corporation, a joint venture between IBM and Sears Roebuck and Co. Ms. Bernstein received her B.A. from Colgate University and her J.D. from Northwestern University; she is a member of the Bar of the states of Illinois and New York.

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Yumiko Damashek has served as Vice President of Japan and Operations Asia since May 2008. Previously, Ms. Damashek served as Managing Director for Japan since November 2005. Prior to joining CMC, Ms. Damashek served as President for Celerity Japan, Inc. Before that, she held various leadership positions at Global Partnership Creation, Inc. and Millipore Corporation. Ms. Damashek received her B.A. from the University of Arizona and her M.B.A. from San Diego University.

Thomas S. Roman has served as our Corporate Controller and Principal Accounting Officer since February 2004 and previously served as our North American Controller. Prior to joining us in April 2000, Mr. Roman was employed by FMC Corporation in various financial reporting, tax and audit positions. Before that, Mr. Roman worked for Gould Electronics and Arthur Andersen LLP. Mr. Roman is a C.P.A. and earned a B.S. in Accounting from the University of Illinois and an M.B.A. from DePaul University’s Kellstadt Graduate School of Business.

Steven V. Wilkinson, 67, was elected a director of our company in April 2000. He is also a director of Entergy Corporation. Mr. Wilkinson has been retired since 1998. Prior to retirement, he was a partner of Arthur Andersen LLP. Mr. Wilkinson received his B.A. in economics from DePauw University and his M.B.A. from the University of Chicago.

Bailing Xia, 53, was elected a director of our company in September 2007. He is the Chairman and Chief Executive Officer of Summer Leaf, Inc., a privately-held technology and project development consulting company, headquartered in Toronto, Canada, and has served in that role since 1996. In addition, he has been the Chief Representative in North America for China Central Television (CCTV) for education, science, technology, culture and health programs since 1994. Mr. Xia also has served as a director of Lingo Media International, Inc., a publicly-traded leading publisher of English-language educational programs in China, since 2004. In addition, in April 2007 he was appointed a Member of the Planning Committee of the China Development Bank. Mr. Xia holds a degree in Economics from Anhui University, and also graduated from the Sino-American Scientific Technology, Industry and Business Administration Program.

Barb Klein is senior vice president, chief financial officer and executive committee member of CDW, a FORTUNE 500 company and a leading provider of technology products and services for business, government and education. In addition, she serves as director of CDW Government, Inc. Klein is responsible for financial planning and analysis, accounting, treasury, tax, risk management, internal audit and investor relations. Klein joined CDW in 2002, bringing more than 20 years of financial and leadership experience to the management team. Previously, she served as vice president of finance and chief financial officer of Dean Foods Company. Prior to Dean Foods, Klein served as vice president and corporate controller for Ameritech Corporation. Additionally, Klein held senior management positions at Pillsbury and Sears, Roebuck and Co. Klein, a certified public accountant, graduated magna cum laude from Marquette University with a Bachelor of Science in accounting and finance and a master's degree in business administration from Loyola University. She is a member of the American Institute of CPAs, the Illinois Society of CPAs, The Chicago Network, Financial Executives Institute and Chicago Finance Exchange. Additionally, Klein serves on the Board of Directors of Corn Products International, Inc.

H. Laurance Fuller, 70, was elected a director of our company in June 2002. He also is a director of Abbott Laboratories. Mr. Fuller retired from the position of Co-Chairman of BP Amoco, p.l.c., a global petroleum and petrochemicals company, in 2000 after serving as Chairman and Chief Executive Officer of Amoco Corporation since 1991 and President since 1983. Mr. Fuller received his B.S. in chemical engineering from Cornell University.

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Robert J. Birgeneau, 66, was elected a director of our company in March 2005. He has been the Chancellor of the University of California, Berkeley since September 2004. He also holds a faculty appointment in the department of physics there. From July 2000 until assuming his current position, Mr. Birgeneau served as the President of the University of Toronto. Prior to that, Mr. Birgeneau was the Dean of the School of Science at the Massachusetts Institute of Technology, and previously had been the chair of the physics department of M.I.T. Mr. Birgeneau received his B.S. in mathematics from the University of Toronto and his Ph.D. in physics from Yale University.