Filing Flows › Koppers Holdings (KOP) › Q3 2025
Koppers Holdings (KOP) Q3 2025 earnings results (third quarter 2025)
10-Q filed Nov 7, 2025
Koppers Holdings (KOP) reported revenue of $485M for the third quarter 2025 (Q3 2025), -12% from a year earlier and -4% from the quarter before. Operating margin was 10.7%, net earnings $23.8M (4.9% of revenue).
Koppers Holdings, Q3 2025: revenue $485M (-12% year over year), operating margin 10.7%, net earnings $23.8M, operating cash flow $49.6M. The chart follows the revenue to costs, profit and cash.
| Q3 2025 | Amount | Q/Q | Y/Y |
|---|---|---|---|
| Revenue | $485M | -4% | -12% |
| Operating profit | $51.8M | +32% | +4% |
| Net earnings | $23.8M | +45% | +25% |
| Operating cash flow | $49.6M | -2% | +66% |
| Free cash flow | $37.6M | -2% | +161% |
What changed
Revenue was $485.3M in Q3 2025, down 12% year over year and down 4% from the previous quarter.
Operating profit was $51.8M, a 10.7% margin (up 1.7 points year over year). Total costs fell 14% while revenue fell 12%. Net earnings were $23.8M, up 4% year over year. The effective tax rate was 33.5%.
Operating cash flow was $49.6M (up 66% year over year), 208% of net earnings. Non-cash charges added back $17.6M of depreciation and amortization and $2.4M of share-based compensation. Working capital and other items added $5.8M. Capital expenditures of $12.0M left free cash flow of $37.6M.
Questions
What was Koppers Holdings' revenue in the third quarter 2025?
Koppers Holdings (KOP) reported revenue of $485M for the third quarter 2025 (Q3 2025), -12% from a year earlier and -4% from the quarter before.
Was Koppers Holdings profitable in the third quarter 2025?
Operating profit was $51.8M (10.7% of revenue) and net earnings $23.8M.
Source: Koppers Holdings 10-Q on SEC EDGAR.