News Release Details

PITTSBURGH, PA, May 07, 2008 (MARKET WIRE via COMTEX News Network) -- As previously disclosed, Koppers Holdings Inc. (NYSE: KOP) today announced the retirement of Robert Cizik, who has been chairman of the board of Koppers Holdings Inc. since its formation in 2004, and of Koppers Inc. since 1999. Mr. Cizik will be replaced as chairman by David M. Hillenbrand, who has been a board member of Koppers Holdings Inc. since 2004 and of Koppers Inc. since 1999.

Dr. Hillenbrand is currently the chief executive officer of Carnegie Museums of Pittsburgh after retiring from Bayer AG as executive vice president of Bayer Polymers in 2003.

"I want to thank Bob Cizik for his many contributions in bringing Koppers to where it is today," said Walter W. Turner, president and chief executive officer of Koppers. Mr. Turner continued, "I am pleased to be able to continue working with David as our new chairman, and I look forward to his continuing efforts on behalf of Koppers."

About Koppers

Koppers, with corporate headquarters and a research center in Pittsburgh, Pennsylvania, is a global integrated producer of carbon compounds and treated wood products. Including its joint ventures, Koppers operates facilities in the United States, United Kingdom, Denmark, Australia, and China. The stock of Koppers Holdings Inc. is publicly traded on the New York Stock Exchange under the symbol "KOP." For more information, visit us on the Web: www.koppers.com. Questions concerning investor relations should be directed to Brian H. McCurrie at 412 227 2153 or Michael W. Snyder at 412 227 2131.

For Information:
Brian H. McCurrie
Vice President and Chief Financial Officer
412 227 2153
Email Contact

SOURCE: Koppers Holdings Inc.