• Koppers set a conditional plan to halt distillation and chemical manufacturing at Stickney, Illinois, pending bargaining obligations with union representing some employees at site.
• Union talks could affect about 85 employees; wind-down of remaining production targeted by Dec. 31, 2026.
• Production shift tentatively targeted for Q4 2026 to coal tar distillation facility in Nyborg, Denmark; supply chain to U.S. expanded to support pitch and creosote customers.
• Action expected to generate pre-tax charges of $227 million-$262 million through 2029, including $170 million-$195 million non-cash charges projected in Q2-Q3 2026.
• Annual free cash flow improvement projected at $15 million-$25 million; adjusted EBITDA savings expected to reach $15 million-$20 million run rate in 2027 and beyond.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Koppers Holdings Inc. published the original content used to generate this news brief via PR Newswire (Ref. ID: 202605080845PR_NEWS_USPR_____NE54274) on May 08, 2026, and is solely responsible for the information contained therein.