Cliffs Natural Resources : ' New Labor Contract with the United Steelworkers Ratified for its Michigan and Minnesota Operations

NEWS RELEASE

Cliffs' New Labor Contract with the United Steelworkers Ratified for its Michigan and Minnesota Operations

9/29/2016

CLEVELAND, Sept. 29, 2016 /PRNewswire/ -- Cliffs Natural Resources Inc. (NYSE: CLF) announced today that its employees represented by the United Steelworkers (USW) at its Tilden and Empire mines in Michigan, and its United Taconite and Hibbing Taconite mines in Minnesota ratified a new 3-year labor contract. The new contract is retroactively effective from October 1, 2015 through September 30, 2018 and covers approximately 2,000 USW- represented employees at Cliffs' operations.

About Cliffs Natural Resources Inc.

Cliffs Natural Resources Inc. is a leading mining and natural resources company in the United States. The Company is a major supplier of iron ore pellets to the North American steel industry from its mines and pellet plants located in Michigan and Minnesota. Cliffs also operates an iron ore mining complex in Western Australia. Driven by the core values of safety, social, environmental and capital stewardship, Cliffs' employees endeavor to provide all stakeholders operating and financial transparency. News releases and other information on the Company are available at http://www.cliffsnaturalresources.com.

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SOURCE Cliffs Natural Resources Inc.

Patricia Persico, Director, Corporate Communications , (216) 694-5316

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