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A leading manufacturer of treated wood products, rail joints and track components for the railroad industry. Koppers manages every aspect of their wood products from untreated timber to pressure treatment (Borate & Creosote) and transportation from nine strategically located treatment facilities. Koppers rail joints have a proven track record of reliability and incorporate advanced technology to improve durability and safety. Koppers wood treatment facilities maintain AAR M-1003, ISO 14001 and RC 14001 Certifications. The rail joint manufacturing plant is ISO 9001 and AAR M-1003 Certified.