Koppers Holdings, Inc. is a medium risk chemical company based in the United States. They specialize in manufacturing and selling wood products, wood treatment chemicals, and carbon compounds for various industries such as railroad, aluminum, steel, agriculture, utilities, and residential lumber. The company is organized into three business segments: railroad and utility products and services, performance chemicals, and carbon materials and chemicals. With a focus on ESG practices, Koppers Holdings offers a diverse product portfolio including treated and untreated wood products like crossties for railroads, wood preservation chemicals, and carbon compounds such as creosote. The majority of their revenue comes from the railroad and utility products and services segment, with over half of their revenue generated within the United States.