Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report Betfredof Cliffs Natural Resources Inc. (the “Company”) on Form 10-Q for the period ended March 31, 2017, as filed with the Securities and Exchange Commission on the date hereof (the &betfred sportsbook#8220;Form 10-Q”), I, Lourenco Goncalves, Chairman, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section&betfred sportsbook#160;906 of the Sarbanes-Oxley Act of 2002, that, to such officer’s knowledge:

(1)	The Form 10-Q fully complies with the requirements of Section 13(a) or 15(d) of the Securities BetfredExchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and

(2)	The information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations betfred sportsbook reviewof the Company as of the dates and for the periods expressed in the Form 10-Q.

Date:		April 27, 2017
		By:	/s/ Lourenco Goncalves
			Lourenco Goncalves
			Chairman, President and Chief Executive Officer