Koppers Q2 2026 Earnings: Sales Rise as Margins Weaken

Koppers’ Q2 2026 earnings showed a 3.0% increase in net sales to $520.1 million, but adjusted EBITDA fell 7.9% to $71.0 million as raw-material, freight, and legal costs, unfavorable RUPS pricing, and divestitures pressured profitability. A $215.8 million impairment, restructuring, and plant-closure charge drove a GAAP net loss of $147.5 million and diluted EPS of negative $7.71. Performance Chemicals improved while RUPS and Carbon Materials and Chemicals weakened, prompting Koppers to narrow adjusted EBITDA and adjusted EPS guidance while maintaining its cash-flow outlook.