CLEVELAND, Aug. 26, 2016 /PRNewswire/ --
Cliffs Natural Resources Inc. (NYSE: CLF) announced today a tentative agreement with the United Steelworkers (USW), on a new 3-year labor contract that is effective as of October 1, 2015. The new contract will cover approximately 2,000 USW-represented workers at Cliffs' Tilden and Empire mines in Michigan
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