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Dec 16, 2025 08:45AM Koppers Named To Newsweek 'America's Most Responsible Companies' Listing
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Aug 7, 2025 11:49AM Koppers Holdings Inc. Declares Quarterly Cash Dividend
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May 9, 2025 08:35AM Koppers Holdings (KOP) Tops Q1 EPS by 15c ; Offers Guidance
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Feb 27, 2025 07:55AM Koppers Announces $100 Million Share Repurchase Program
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Nov 8, 2024 07:55AM Koppers Reports Third Quarter 2024 Results; Reaffirms 2024 Outlook
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Jun 26, 2024 08:30AM Koppers Releases 2023 Corporate Sustainability Report
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Apr 15, 2024 07:55AM Koppers Holdings (KOP) Reprices and Upsizes Term Loan B
Apr 15, 2024 07:55AM

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