/PRNewswire/ Koppers Performance Chemicals Inc. (PC), a wholly-owned subsidiary of Koppers Holdings Inc. (NYSE: KOP), an integrated global provider of.
/PRNewswire/ Koppers Holdings Inc. (NYSE: KOP), an integrated global provider of treated wood products, wood treatment chemicals, and carbon compounds,.
/PRNewswire/ Koppers Recovery Resources LLC (KRR), a wholly-owned subsidiary of Koppers Holdings Inc. (NYSE: KOP), an integrated global provider of treated.