EXHIBIT 23.3

CONSENT OF INDEPENDENT AUDITORS

We consent to the incorporation by reference in:

Registration Statement No. 333-237325 on Form S-4 pertaining to Cleveland-Cliffs Inc.’s 5.875% Senior Guaranteed Notes due 2027 and the Guarantees related thereto;

Registration Statement No. 333-237324 on Form S-3;

Registration Statement No. 333-235855 on Form S-4 (as amended by Amendment No. 1) pertaining to the joint proxy statement/prospectus filed by AK Steel Holding Corporation and Cleveland-Cliffs Inc.;

Registration Statement No. 033-56661 on Form S-8 (as amended by Post-Effective Amendment No.1) pertaining to the Northshore Mining Company and Silver Bay Power Company Retirement Savings Plan and the related prospectus;

Registration Statement No. 333-184620 on Form S-8 pertaining to the Cliffs Natural Resources Inc. 2012 Incentive Equity Plan;

Registration Statement No. 333-197687 on Form S-8 pertaining to the Cliffs Natural Resources Inc. Amended and Restated 2012 Incentive Equity Plan;

Registration Statement No. 333-197688 on Form S-8 pertaining to the Cliffs Natural Resources Inc. 2014 Nonemployee Directors’ Compensation Plan;

Registration Statement No. 333-204369 on Form S-8 pertaining to the Cliffs Natural Resources Inc. 2015 Equity and Incentive Compensation Plan;

Registration Statement No. 333-206487 on Form S-8 pertaining to the Cliffs Natural Resources Inc. 2015 Employee Stock Purchase Plan;

Registration Statement No. 333-210954 on Form S-8 pertaining to the Cliffs Natural Resources Inc. Amended and Restated 2014 Nonemployee Directors’ Compensation Plan;

Registration Statement No. 333-217506 on Form S-8 pertaining to the Cliffs Natural Resources Inc. Amended and Restated 2015 Equity and Incentive Compensation Plan; and

Registration Statement No. 333-237144 on Form S-8 pertaining to the Cliffs Natural Resources Inc. Amended and Restated 2015 Equity and Incentive Compensation Plan;

of our report dated March 30, 2020, relating to the financial statements of I/N Tek, appearing in this Current Report on Form 8-K dated February 8, 2021.

/s/ DELOITTE & TOUCHE LLP

Chicago, Illinois

February 8, 2021