Koppers Inc. | Diversity Employer

Koppers is an integrated global producer of carbon compounds, chemicals, and treated wood products for the aluminum, railroad, specialty chemical, utility, rubber, steel, residential lumber, and agriculture industries. Headquartered in Pittsburgh, Pennsylvania, Koppers serves its customers through a comprehensive global manufacturing and distribution network, with facilities located in North America, South America, Australasia, China, and Europe.

Carbon Materials and Chemicals

Koppers carbon materials and chemicals are essential to the production of aluminum, steel, plastics, resins, treated wood, and rubber products. In addition, the carbon materials and chemicals also increase the durability of many products including railroad ties, utility and transmission poles, and marine pilings.

As a leading distiller of coal tar, a by-product of the transformation of coal into coke, Koppers produces carbon pitch, refined tar, creosote, carbon black feedstock and chemical oils. The chemical oils resulting from distillation are used to produce naphthalene and phthalic anhydride (PAA).

Performance Chemicals

Wood preservation products branded as MicroPro, NatureWood, AdvanceGuard, Hi-bor and FirePro.

Railroad and Utility Products and Services

Koppers is a world leader in the manufacturing of treated wood products, primarily for the railroad and electric/communications industries. Treated wood makes structures more durable and resistant to decay, thereby increasing safety, reducing replacement costs, and preserving valuable forests.

Koppers has been serving the railroad industry with treated wood railroad ties and railroad crossing panel products for 25 years. In North America, we are the largest provider of railroad crossties for the Class I Railroads and are known for our pre-plated crossties.