Koppers Holdings Inc. Schedules Fourth Quarter and Full-Year 2024 Conference Call PR Newswire PITTSBURGH, Feb. 6, 2025 PITTSBURGH , Feb. 6, 2025 /PRNewswire/ -- Koppers Holdings Inc. (NYSE: KOP), an integrated global provider of treated wood products, wood treatment chemicals, and carbon compounds, today announced that the company plans to release its financial results for the fourth quarter and full-year 2024 before the market opens on Thursday, February 27, 2025 , and discuss its outlook on a...