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The company defended its safety record as Investigators worked to determine the cause of the blast.
The blast at U.S. Steel Clairton Coke Works, located in the Monongahela Valley near Pittsburgh, injured at least 10 others.
The mill, which is part of the recent merger between U.S. Steel and Nippon Steel, has faced scrutiny from federal and local ...
United States Steel Corp. and its parent company, Nippon Steel Corp. are committed to keeping the Clairton Coke Works ...