Koppers Holdings Announces Availability of 2024 Annual Report

Koppers Holdings Inc., an integrated global provider of treated wood products, wood treatment chemicals and carbon compounds, announced that the company has published its 2024 Annual Report and Letter to Shareholders. The Annual Report, including audited financial statements for the fiscal year ended December 31, 2024, was filed with the U.S. Securities and Exchange Commission (SEC) on March 28, 2025.

The report is available for viewing on the company’s website in the Investor Relations section and can be accessed here, as well as on the SEC’s website at www.sec.gov.

About Koppers

Koppers, with corporate headquarters in Pittsburgh, Pennsylvania, is an integrated global provider of treated wood products, wood treatment chemicals, and carbon compounds.  Our products and services are used in a variety of niche applications in a diverse range of end markets, including the railroad, specialty chemical, utility, residential lumber, agriculture, aluminum, steel, rubber, and construction industries.  We serve our customers through a comprehensive global manufacturing and distribution network, with facilities located in North America, South America, Australasia, and Europe.  The stock of Koppers Holdings Inc. is publicly traded on the New York Stock Exchange under the symbol “KOP.”

Contact:

Ms. Jessica Franklin Black – Media Contact – BlackJF@koppers.com – (412) 227-2025

Source: Koppers Holdings, Inc.