Michael Zugay to Retire as Chief Economic Officer Jimmi Sue Smith Named as Successor PITTSBURGH, Aug. 6, 2021 /PRNewswire/ — Koppers Holdings Inc. (NYSE: KOP),
Michael Zugay to Retire as Chief Economic Officer Jimmi Sue Smith Named as Successor PITTSBURGH, Aug. 6, 2021 /PRNewswire/ — Koppers Holdings Inc. (NYSE: KOP),