Pittsburgh, Pennsylvania, USA, 02 August 2006 -- /PRNewswire/ -- Koppers Holdings Inc. (NYSE:KOP) will release its second quarter 2006 financial results before the opening of the markets on 04 August 2006, and will discuss its results on a conference call later that morning.

An audio replay of the live broadcast will be available at 800-642-1687 or 706-645-9291, Conference ID number 3750831. The recording will be available for replay through 04 September 2006.

The live broadcast of Koppers' conference call will be archived on the company's Web site at www.koppers.com, as well as www.streetevents.com and www.earnings.com through 18 August 2006.

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, China, the Pacific Rim, and South Africa. The stock of Koppers Holdings Inc. is publicly traded on the New York Stock Exchange under the symbol "KOP". For more information, visit www.koppers.com.

Source: Koppers Holdings Inc.