KOP - Koppers Holdings inc (KOP) Q2 2021 Earnings Call Transcript August, 06 2021 06:01 PM Koppers Holdings Inc. Image source: The Motley Fool. Koppers Holdings inc (NYSE: KOP) Q2 2021 Earnings Call Aug 6, 2021 , 11:00 a.m. ET Operator Continue reading For further details see: Koppers Holdings inc (KOP) Q2 2021 Earnings Call Transcript