{"schema":"rootz.ai/sec-company/v1","layer":1,"cik":"0001315257","name":"Koppers Holdings Inc.","summary":"Koppers Holdings Inc. is a leading integrated global provider of treated wood products, wood preservation chemicals, and carbon compounds. The company operates three segments: Railroad and Utility Products and Services (RUPS), Performance Chemicals (PC), and Carbon Materials and Chemicals (CMC). Products include railroad crossties, utility poles, creosote, carbon pitch, naphthalene, copper-based wood preservatives, and fire-retardant chemicals, serving railroad, utility, aluminum, steel, rubber, residential lumber, and construction industries across North America, South America, Australasia, and Europe.","people":[],"products":[{"name":"Railroad Crossties","type":"hardware","description":"Pressure-treated wood crossties supplied to Class I and regional railroads in North America."},{"name":"Utility Poles","type":"hardware","description":"Pressure-treated transmission and distribution poles for electric and telephone utilities in the US and Australia."},{"name":"Rail Joint Bars","type":"hardware","description":"Steel bars used to join rails together for railroad markets."},{"name":"Creosote","type":"hardware","description":"Wood treatment chemical distilled from coal tar; used for railroad crossties and as carbon black feedstock."},{"name":"Carbon Pitch","type":"hardware","description":"Coal tar distillation product used as a critical raw material in aluminum and steel production."},{"name":"Naphthalene","type":"hardware","description":"Coal tar distillation product used as a surfactant in concrete production."},{"name":"MicroPro (Micronized Copper Azole)","type":"hardware","description":"Copper-based wood preservative for pressure treating decking, fencing, and construction lumber."},{"name":"FlamePro","type":"hardware","description":"Fire-retardant chemicals for pressure treatment of wood, primarily used in commercial construction."},{"name":"CCA (Chromated Copper Arsenate)","type":"hardware","description":"Wood preservative used for pressure treating utility poles, pilings, and agricultural lumber."},{"name":"DCOI (Dichloro-Octyl-Isothiazolinone)","type":"hardware","description":"Wood preservative used in pressure treatment of utility poles and pilings."},{"name":"MicroShades (Micronized Pigments)","type":"hardware","description":"Micronized pigment products for wood treatment applications."},{"name":"Alkaline Copper Quaternary","type":"hardware","description":"Copper-based wood preservative for pressure treating lumber applications."},{"name":"Amine Copper Azole","type":"hardware","description":"Copper-based wood preservative for pressure treating lumber applications."},{"name":"Phthalic Anhydride","type":"hardware","description":"Chemical product formerly produced at Stickney, Illinois facility; production discontinued in Q2 2025."}],"partnerships":[],"affiliations":[],"origin":{"leaf":"3050754f8613e1157ad40e50550d36082fbd89ba99ba718cd0af3335675564a8","formula":"v2: sha256( sha256(content) || parent || source_accession )","content_sha256":"3d01793e026437df79c32bcbe19e2d67e7cfe708d575a9b375d812ec3f8774f2","parent":"fa288a42a91627f2c53e678b7bbb6006e113da476f6c62112897d407ac22a22d","source":"0001315257-26-000012","chain":"sec.gov/EDGAR (retrieved over TLS, accession recorded) > origin.rootz.global extraction > this response","registry":"origin.rootz.global","verify":"Recompute it: sha256(sha256(<this response body minus the origin block>) || parent || source_accession). 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