Cliffs Natural Resources : to Announce Second-Quarter 2016 Financial Results on July 28

NEWS RELEASE

Cliffs Natural Resources Inc. to Announce Second- Quarter 2016 Financial Results on July 28

7/6/2016

CLEVELAND, July 6, 2016 /PRNewswire/ -- Cliffs Natural Resources Inc. (NYSE: CLF) today said it will be announcing second-quarter 2016 financial results before the U.S.-market open on Thursday, July 28, 2016.

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 28, 2016, at 10 a.m. ET

Hosts: Lourenco Goncalves, Chairman, President and Chief Executive Officer Kelly Tompkins, Executive Vice President and Chief Financial Officer

Web Address: http://www.cliffsnaturalresources.com

If you are unable to participate during the live webcast, the call will be archived at

http://www.cliffsnaturalresources.com.

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 www.cliffsnaturalresources.com.

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SOURCE Cliffs Natural Resources Inc.

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