Koppers Holdings Announces Availability of 2024 Annual Report

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Koppers Holdings (NYSE: KOP), a global provider of treated wood products, wood treatment chemicals and carbon compounds, has released its 2024 Annual Report and Letter to Shareholders. The report, which includes audited financial statements for the fiscal year ended December 31, 2024, was filed with the SEC on March 28, 2025. The document is accessible through both the company's Investor Relations website section and the SEC's website.

PITTSBURGH, March 31, 2025 /PRNewswire/ -- Koppers Holdings Inc. (NYSE: KOP), an integrated global provider of treated wood products, wood treatment chemicals and carbon compounds, today 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 (NYSE: KOP) is an integrated global provider of essential treated wood products, wood preservation technologies and carbon compounds. Our team of 2,100 employees create, protect and preserve key elements of our global infrastructure – including railroad crossties, utility poles, outdoor wooden structures, and production feedstocks for steel, aluminum and construction materials, among others – applying decades of industry-leading expertise while constantly innovating to anticipate the needs of tomorrow. Together we are providing safe and sustainable solutions to enable rail transportation, keep power flowing, and create spaces of enjoyment for people everywhere. Protecting What Matters, Preserving The Future. Learn more at Koppers.com.

Inquiries from the media should be directed to Ms. Jessica Franklin Black at BlackJF@koppers.com or 412-227-2025. Inquiries from the investment community should be directed to Ms. Quynh McGuire at McGuireQT@koppers.com or 412-227-2049.

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SOURCE KOPPERS HOLDINGS INC.

FAQ

When did Koppers Holdings (KOP) file its 2024 Annual Report with the SEC?

Koppers Holdings filed its 2024 Annual Report with the SEC on March 28, 2025.

Where can investors access Koppers Holdings' (KOP) 2024 Annual Report?

The report is available on Koppers' website in the Investor Relations section and on the SEC's website at www.sec.gov.

What period does Koppers Holdings' (KOP) 2024 Annual Report cover?

The report covers the fiscal year ended December 31, 2024.

What type of financial information is included in Koppers Holdings' (KOP) 2024 Annual Report?

The report includes audited financial statements for fiscal year 2024 and a Letter to Shareholders.