Koppers inc.

Koppers is an integrated global producer of carbon compounds, chemicals, and treated wood products for the aluminum, railroad, specialty chemical, utility, rubber, concrete, steel, residential lumber, and agriculture industries. We serve our customers through a comprehensive global manufacturing and distribution network with facilities located in North America, South America, Australasia, China, and Europe. Koppers operates three principal businesses, Performance Chemicals, Railroad and Utility Products and Services, and Carbon Materials and Chemicals.