Nippon Steel Corp. said Thursday it has withdrawn its lawsuit filed against rival U.S. steelmaker Cleveland-Cliffs Inc. and others, putting an end to all U.S. litigation launched to prevent its plan to purchase United States Steel Corp. from being blocked.Nippon Steel, which finalized the high-profile buyout in June of U.S. Steel, will help revive the iconic American steelmaker by sending skilled engineers from Japan to the United States, its chairman and chief executive Eiji Hashimoto told Kyodo News in an interview.It also seeks to cooperate with Carnegie Mellon University in Pittsburgh, …READ FULL ARTICLE