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Date Title   11/06/08 Koppers Holdings Inc. Reports Third Quarter 2008 Results 11/05/08 Koppers Holdings Inc. Board Declares Regular Dividend 11/03/08 Koppers Refinances Bank Agreement 10/16/08 Koppers Holdings Inc. Schedules Third Quarter 2008 Conference Call 10/01/08 Koppers Announces Completion of Sale of Monessen Coke Plant 08/07/08 Koppers Holdings Inc. Reports Second Quarter 2008 Results 08/06/08 Koppers Holdings Inc. Board Declares Regular Dividend 08/04/08 Koppers Agrees to Sell Coke Plant 07/16/08 Koppers Holdings Inc. Schedules Second Quarter 2008 Conference Call 07/02/08 Koppers Reports Favorable Ruling in Mississippi Civil Case 05/22/08 Koppers Holdings Inc. Announces Agreement for Storage Facilities at Baltic Sea Port 05/08/08 Koppers Holdings Inc. Reports First Quarter 2008 Results 05/07/08 Koppers Announces Retirement of Board Chairman and Names Successor 05/07/08 Koppers Holdings Inc. Board Declares Regular Dividend 04/11/08 Koppers Holdings Inc. Schedules First Quarter 2008 Conference Call 04/11/08 Koppers Awarded Export Order for Railroad Ties 03/05/08 Koppers Expands Carbon Testing Capabilities With Hiring of Daniel Gray 02/20/08 Koppers Holdings Inc. Reports Record Revenues and Earnings for 2007 02/07/08 Koppers Holdings Inc. Schedules Year End 2007 Conference Call 02/07/08 Koppers Announces March 2008 Retirement of Asian Operations Executive 02/06/08 Koppers Holdings Inc. Board Increases Regular Dividend, Sets Annual Meeting and Record Dates 01/31/08 Koppers Elects Cynthia A. Baldwin to Its Board of Directors