Koppers Management Participating in Wells Fargo Industrials & Materials Conference

About this update from Koppers Holdings Inc.

PITTSBURGH , June 8, 2026 /PRNewswire/ -- Koppers Holdings Inc. (NYSE: KOP) today announced that the company will host meetings with the investment community as part of its participation in the Wells Fargo Industrials & Materials Conference, which will be held in Chicago, Illinois, on June 11, 2026. Koppers management will be represented by Bradley Pearce, Chief Accounting Officer, and Quynh McGuire, Vice President of Investor Relations. The presentation materials will be available on www.koppers.com  in the Investor Relations section of the company's website. About Koppers Koppers (NYSE: KOP) is an integrated global provider of essential treated wood products, wood preservation technologies and carbon compounds. Our team of approximately 1,800 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 [email protected] or 412-227-2025. Inquiries from the investment community should be directed to Ms. Quynh McGuire at [email protected]  or 412-227-2049. For Information: Quynh McGuire, Vice President, Investor Relations 412 227 2049 [email protected] View original content to download multimedia: https://www.prnewswire.com/news-releases/koppers-management-participating-in-wells-fargo-industrials--materials-conference-302793152.html SOURCE Koppers Holdings Inc.

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