PITTSBURGH–(BUSINESS WIRE)—- $X #BestforAll–United States Steel Corporation (NYSE: X) (“U. S. Steel”) announced today that it that its Big River Steel mill in Osceola, Arkansas has achieved the first-ever ResponsibleSteel™ site certification in North America. Big River Steel received the site certification after SRI Quality System Registrar (SRI) conducted an independent third-party audit and determined the mill met the stringent requirements of the ResponsibleSteel Standard, the industry’s only global multi-
