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David Hillenbrand has been a director of Koppers Holdings since November 2004 and has been a director of Koppers Inc. since February 1999. He retired from Bayer AG in August 2003 where he was Executive Vice President Bayer Polymers since July 2002. He previously had been President and Chief Executive Officer of Bayer's Canadian operations Bayer Inc. for eight years. Prior to 1994 he was Senior Vice President and Elkhart General Site Manager Miles Inc. On July 1 2005 David left retirement to become the eighth President of Carnegie Museums of Pittsburgh a collective of four museums Carnegie Museum of Art Carnegie Museum of Natural History Carnegie Science Center and The Andy Warhol Museum serving nearly 1.4 million people annually. | 