PITTSBURGH, May 20, 2024 /PRNewswire/ -- Koppers Holdings Inc. (NYSE: KOP) today announced that the company will host meetings with the investment community as part of its participation in upcoming investor conferences as follows: Singular Research Spring Select Webinar, which will be held virtually on May 22, 2024. Koppers management will be represented by Bradley Pearce, Chief Accounting Officer, and Quynh McGuire, Vice President of Investor Relations. B. Riley Securities Institutional Investor Conference ...