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CLAIRTON, Pa. (AP) — Koppers Holdings Inc. says it is closing a western Pennsylvania chemical plant where 52 employees will lose their jobs. The Pittsburgh-based company makes chemicals used in aluminum manufacturing, as well as wood preservers and vinyl, from waste products from the steel industry. Koppers says Wednesday that it will close the Clairton plant in the next six months because the aluminum industry is cutting production in the United States. Alcoa Inc. earlier this week announced major cuts to its aluminum production on the heels of a $500 million fourth-quarter loss and falling prices due to a global abundance of aluminum. Koppers says closing the Clairton plant will save the company about $14 million annually by 2017.

Koppers closing Clairton chemical plant, 52 losing jobs