PITTSBURGH, PA--(Marketwired - October 20, 2014) - Koppers Holdings Inc. (KOP) intends to release its third quarter 2014 financial results before the opening of the markets on Thursday, November 6, 2014, and discuss its results on a conference call later that day at 11:00 a.m. EST.

Interested parties may access the live audio broadcast by dialing 888 401 4669 in the United States/Canada, or +1 719 457 2661 for international, Conference ID number 3268912. Investors are requested to access the call at least five minutes before the scheduled start time in order to complete a brief registration. An audio replay will be available approximately two hours after the completion of the call at 888 203 1112 or +1 719 457 0820, Conference ID number 3268912. The recording will be available for replay through November 20, 2014.

The live broadcast of the Koppers conference call will be available online: http://edge.media-server.com/m/p/3tuzywy2/lan/en. (Due to the length of this URL, it may be necessary to copy and paste this hyperlink into your Internet browser's URL address field.)

If you are unable to participate during the live webcast, the call will be archived on www.koppers.com and www.streetevents.com shortly after the live call and continuing through November 20, 2014.

About Koppers

Koppers, with corporate headquarters in Pittsburgh, Pennsylvania, is an integrated global producer of carbon compounds, chemicals, and treated wood products and services for the aluminum, railroad, specialty chemical, utility, rubber, concrete, steel, residential lumber, and agriculture industries. Including our joint ventures, we serve our customers through a comprehensive global manufacturing and distribution network, with facilities located in North America, South America, Australasia, China and Europe. The stock of Koppers Holdings Inc. is publicly traded on the New York Stock Exchange under the symbol "KOP." For more information, visit us on the Web: www.koppers.com. Questions concerning investor relations should be directed to Michael J. Zugay at 412 227 2231 or Michael W. Snyder at 412 227 2131.