Koppers Completes Acquisition of Crosstie Supplier Gross & Janes Co.

Koppers Holdings Inc., an integrated global provider of treated wood products, wood treatment chemicals, and carbon compounds, today announced that Koppers Inc., a wholly-owned subsidiary of Koppers Holdings, has closed on its acquisition of substantially all of the assets of Gross & Janes Co.

Gross & Janes, headquartered in Kirkwood, Missouri, is the largest independent supplier of untreated railroad crossties in North America, with operations in Arkansas, Missouri, and Texas. The company reported approximately $50 million in annual sales in 2021.

Commenting on the transaction, Leroy Ball, President and CEO, said, “I’m glad to get to the point where we have officially added the Gross & Janes team and their network of operations and suppliers to Koppers. The addition further strengthens our vertically integrated business model that brings value to our customer base by de-risking their supply chains for critical products. Furthermore, the synergies realized through this acquisition will be immediately accretive to earnings while also displacing the need for capital spending to replace equipment at certain Koppers legacy operating sites.”

About Koppers

Koppers, with corporate headquarters in Pittsburgh, Pennsylvania, is an integrated global provider of treated wood products, wood treatment chemicals, and carbon compounds. Our products and services are used in a variety of niche applications in a diverse range of end markets, including the railroad, specialty chemical, utility, residential lumber, agriculture, aluminum, steel, rubber, and construction industries. We serve our customers through a comprehensive global manufacturing and distribution network, with facilities located in North America, South America, Australasia, and Europe. The stock of Koppers Holdings Inc. is publicly traded on the New York Stock Exchange under the symbol “KOP.”

For more information, visit: www.koppers.com. Inquiries from the media should be directed to Ms. Jessica Franklin Black at BlackJF@koppers.com or 412-227-2025. Inquiries from the investment community should be directed to Ms. Quynh McGuire at McGuireQT@koppers.com or 412-227-2049.

Contact:

Quynh McGuire – Vice President, Investor Relations – McGuireQT@koppers.com – (412) 227-2049

Source: Koppers Holdings, Inc.