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Primary IR Contact
Investor Relations
Koppers Holdings Inc.
E-mail: McGuireQT@koppers.com

Transfer Agent
Computershare
P.O. Box 30170
College Station, TX 77842-3170
Phone: 866-293-5637
Corporate Website: www.computershare.com/investor

Accountants
Ernst &Young LLP
Pittsburgh, PA 

Legal
K&L Gates LLP
210 Sixth Avenue
Pittsburgh, PA 15222-2613