Despite the significant bottom-line hit, the Pittsburgh-based wood products and chemical firm maintained steady revenue, reporting $520.1 million in sales compared to $504.8 million a year ago. CEO Leroy Ball cited ongoing market pressure in certain segments but pointed to the company's "Catalyst" transformation initiative for offsetting some weaker conditions. Adjusted EBITDA fell to $71.0 million from $77.1 million, driven by higher raw material costs and unfavorable pricing within the Railroad and Utility Products and Services segment.

While the quarterly loss was substantial, the firm achieved record year-to-date performance in cash management. Operating cash flow reached $96.3 million, with free cash flow hitting $72.6 million, enabling the company to continue reducing debt and returning capital to shareholders. Looking ahead, Koppers lowered its full-year adjusted earnings guidance to a range of $3.80 to $4.20 per share, anticipating that a challenging margin environment will persist through the remainder of 2026.