CLEVELAND–(BUSINESS WIRE)–Cliffs Natural Resources Inc. (NYSE: CLF) today said it will be announcing second-quarter 2017 financial results before the U.S.-market open on Thursday, July 27, 2017. The Company invites interested parties to listen to a live broadcast of a conference call with securities analysts and institutional investors to discuss the results. When: Thursday, July 27, 2017, at 10 a.m. ET Hosts: Lourenco Goncalves, Chairman, President and Chief Executive Officer Tim Flana