Koppers Holdings Inc.


Pittsburgh, Pennsylvania, USA, 11 December 2009 -- (MARKETWIRE) -- Koppers Holdings Inc., a Pennsylvania corporation (NYSE: KOP), today announced that the tender offer for its 9 7/8% senior discount notes due 2014 expired at 12:00 midnight, Eastern Time, on 10 December 2009 (the expiration time). As of the expiration time, holders of USD 196,335,000 principal amount of the senior discount notes (approximately 96.7%) have validly tendered their notes, of which holders of USD 189,450,000 aggregate principal amount of the notes (approximately 93.3%) were validly tendered before the early tender time of 5:00 p.m., Eastern Time, on 25 November 2009 (the early tender time). All validly tendered notes have been accepted for payment.

In connection with Koppers Holdings' previously announced early settlement election, Koppers Holdings paid the total consideration described below to holders of the senior discount notes who tendered their notes before the early tender time on 25 November 2009. Koppers Holdings expects to pay the tender offer consideration described below to holders of the senior discount notes who tendered their notes after the early tender time but on or before the expiration time on 14 December 2009.

All holders of the senior discount notes who validly tendered their notes before the early tender time received the total consideration of USD 1049.38 per USD 1000 principal amount of notes, which included an early tender premium of USD 49.38 per USD 1000 principal amount of notes, plus accrued and unpaid interest up to, but not including, the applicable settlement date. Holders of the senior discount notes who validly tendered their notes after the early tender time, but on or before the expiration time, and which notes were accepted for purchase, will receive the tender offer consideration of USD 1000 per USD 1000 principal amount of notes, plus any accrued and unpaid interest up to, but not including, the applicable settlement date. Holders of the senior discount notes tendered after the early tender time will not receive the early tender premium.

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 www.koppers.com.