Nippon Steel, U.S. Steel sue Cleveland-Cliffs and others in move to keep deal alive
They also filed a lawsuit in federal court in Pittsburgh against rival steelmaker Cleveland-Cliffs Inc. and CEO Lourenco Goncalves, as well as United Steelworkers President David McCall, alleging coordinated anticompetitive and racketeering activities designed to allow only Cliffs to acquire U.S. Steel.