UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K/A

(Amendment No. 1)

☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2017

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from              to             .

Commission File Number: 1-8944

CLEVELAND-CLIFFS INC.

(Exact Name of Registrant as Specified in Its Charter)

Ohio		34-1464672
(State or Other Jurisdiction of Incorporation or Organization)		(I.R.S. Employer Identification No.)
200 Public Square, Suite 3300, Cleveland, Ohio		44114-2315
(Address of Principal Executive Offices)		(Zip Code)

Registrant’s Telephone Number, Including Area Code: (216) 694-5700

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class		Name of Each Exchange on Which Registered
Common Shares, par value $0.125 per share		New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act: NONE

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.       YES  ☒           NO  ☐

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.      YES  ☐            NO  ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.      YES  ☒            NO  ☐

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).      YES  ☒            NO  ☐

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.      ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer  ☒        Accelerated filer  ☐        Non-accelerated filer  ☐        Smaller reporting company  ☐        Emerging growth company  ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).      YES  ☐            NO  ☒

As of June 30, 2017, the aggregate market value of the voting and non-voting common shares held by non-affiliates of the registrant, based on the closing price of $6.92 per share as reported on the New York Stock Exchange — Composite Index, was $2,039,925,087 (excluded from this figure is the voting stock beneficially owned by the registrant’s officers and directors).

The number of shares outstanding of the registrant’s common shares, par value $0.125 per share, was 297,400,968 as of February 12, 2018.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant’s proxy statement for its 2018 annual meeting of shareholders are incorporated by reference into Part III.

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EXPLANATORY NOTE

Cleveland-Cliffs Inc. (the "Company," "we," "us" or "our") is filing this Amendment No. 1 on Form 10-K/A to amend our Annual Report on Form 10-K for the year ended December 31, 2017 (the “Original Filing”), which we originally filed with the Securities and Exchange Commission (the "Commission") on February 14, 2018. We are filing this amendment for the sole purpose of revising portions of Exhibit 10.59 to address comments we received from the Staff of the Commission in response to our confidential treatment request with respect to portions of Exhibit 10.59.

This amendment speaks as of the filing date of the Original Filing, does not reflect events occurring after the original filing date or modify or update those disclosures that may be affected by subsequent events, and no other changes are being made to any other disclosure contained in the Original Filing or any exhibits thereto.

As required by Rule 12b-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), new certifications by the Company’s principal executive officer and principal financial officer are being filed herewith as exhibits to this Amendment pursuant to Rule 13a-14(a) of the Exchange Act. However, the Company is not including certifications pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) as no financial statements are being filed with this Amendment.

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Item 15.	Exhibits and Financial Statement Schedules

(3) List of Exhibits.

Exhibit Number	Exhibit
	Plan of purchase, sale, reorganization, arrangement, liquidation or succession
2.1	***Unit Purchase Agreement, dated as of December 22, 2015, by and among Cliffs Natural Resources Inc., CLF PinnOak LLC and Seneca Coal Resources, LLC (filed as Exhibit 2.3 to Cliffs’ Form 10-K for the period ended December 31, 2015 and incorporated herein by reference)
	Articles of Incorporation and By-Laws of Cleveland-Cliffs Inc.
3.1	Third Amended Articles of Incorporation of Cliffs (as filed with the Secretary of State of the State of Ohio on May 13, 2013 (filed as Exhibit 3.1 to Cliffs’ Form 8-K on May 13, 2013 and incorporated herein by reference)
3.2	Certificate of Amendment to Third Amended Articles of Incorporation of Cliffs (as filed with the Secretary of State of the State of Ohio on April 26, 2017 (filed as Exhibit 3.1 to Cliffs’ Form 8-K on April 27, 2017 and incorporated herein by reference)
3.3	Certificate of Amendment to Third Amended Articles of Incorporation of Cliffs, as amended (as filed with the Secretary of State of the State of Ohio on August 15, 2017 (filed as Exhibit 3.1 to Cliffs’ Form 8-K on August 17, 2017 and incorporated herein by reference)
3.4	Regulations of Cliffs (filed as Exhibit 3.2 to Cliffs’ Form 10-K for the period ended December 31, 2011 and incorporated herein by reference)
	Instruments defining rights of security holders, including indentures
4.1	Indenture between Cliffs Natural Resources Inc. and U.S. Bank National Association, as trustee, dated March 17, 2010 (filed as Exhibit 4.3 to Cliffs’ Registration Statement on Form S-3 No. 333-186617 on February 12, 2013 and incorporated herein by reference)
4.2	Form of 5.90% Notes due 2020 First Supplemental Indenture between Cliffs Natural Resources Inc. and U.S. Bank National Association, as trustee, dated March 17, 2010, including Form of 5.90% Notes due 2020 (filed as Exhibit 4.2 to Cliffs’ Form 8-K on March 16, 2010 and incorporated herein by reference)
4.3	Form of 4.80% Notes due 2020 Second Supplemental Indenture between Cliffs Natural Resources Inc. and U.S. Bank National Association, as trustee, dated September 20, 2010, including Form of 4.80% Notes due 2020 (filed as Exhibit 4.3 to Cliffs’ Form 8-K on September 17, 2010 and incorporated herein by reference)
4.4	Form of 6.25% Notes due 2040 Third Supplemental Indenture between Cliffs Natural Resources Inc. and U.S. Bank National Association, as trustee, dated September 20, 2010, including Form of 6.25% Notes due 2040 (filed as Exhibit 4.4 to Cliffs’ Form 8-K on September 17, 2010 and incorporated herein by reference)
4.5	Form of 4.875% Notes due 2021 Fourth Supplemental Indenture between Cliffs Natural Resources Inc. and U.S. Bank National Association, as trustee, dated March 23, 2011, including Form of 4.875% Notes due 2021 (filed as Exhibit 4.1 to Cliffs’ Form 8-K on March 23, 2011 and incorporated herein by reference)
4.6	Fifth Supplemental Indenture between Cliffs Natural Resources Inc. and U.S. Bank National Association, as trustee, dated March 31, 2011 (filed as Exhibit 4(b) to Cliffs’ Form 10-Q for the period ended June 30, 2011 and incorporated herein by reference)
4.7	Seventh Supplemental Indenture between Cliffs Natural Resources Inc. and U.S. Bank National Association, as trustee, dated May 7, 2013 (as filed as Exhibit 4.1 to Cliffs' Form 10-Q for the period ended June 30, 2013 and incorporated herein by reference)
4.8	Eighth Supplemental Indenture, dated as of December 19, 2017, by and between Cleveland-Cliffs Inc. and U.S. Bank National Association, as trustee, including Form of 1.50% Convertible Senior Notes due 2025 (filed as Exhibit 4.2 to Cliffs' Form 8-K on December 19, 2017 and incorporated herein by reference)
4.9	Indenture, dated as of February 27, 2017, among Cliffs Natural Resources Inc. (n/k/a Cleveland-Cliffs Inc.), the Guarantors party thereto and U.S. Bank National Association, as trustee, including Form of 5.75% Senior Notes due 2025 (filed as Exhibit 4.1 to Cliffs' Form 8-K on August 7, 2017 and incorporated herein by reference)
4.10	First Supplemental Indenture, dated as of August 7, 2017, among Cliffs Natural Resources Inc. (n/k/a Cleveland-Cliffs Inc.), the Guarantors party thereto and U.S. Bank National Association, as trustee, including Form of 5.75% Senior Notes due 2025 (filed as Exhibit 4.2 to Cliffs' Form 8-K filed on August 7, 2017 and incorporated herein by reference)

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4.11	Second Supplemental Indenture, dated as of September 29, 2017, among Cliffs Empire II Inc. and Empire Iron Mining Partnership, as additional guarantors, Cleveland-Cliffs Inc., the Guarantors party thereto and U.S. Bank National Association, as trustee (filed as Exhibit 4.11 to Cliffs' Form 10-K for the period ended December 31, 2017 and incorporated herein by reference)
4.12	Third Supplemental Indenture, dated as of October 27, 2017, among Cliffs TIOP II, LLC, Marquette Range Coal Service Company and Tilden Mining Company L.C., as additional guarantors thereto, Cleveland-Cliffs Inc., the Guarantors party thereto and U.S. Bank National Association, as trustee (filed as Exhibit 4.12 to Cliffs' Form 10-K for the period ended December 31, 2017 and incorporated herein by reference)
4.13	Indenture, dated as of December 19, 2017, by and among Cleveland-Cliffs Inc., the guarantors party thereto and U.S. Bank National Association, as trustee and first lien notes collateral agent, including Form of 4.875% Senior Secured Notes due 2024 (filed as Exhibit 4.1 to Cliffs' Form 8-K filed on December 19, 2017 and incorporated herein by reference)
4.14	Registration Rights Agreement, dated as of February 27,2017, by and among Cliffs Natural Resources Inc. (n/k/a Cleveland-Cliffs Inc.), the Guarantors party thereto and Merrill Lynch, Pierce, Fenner & Smith Incorporated, as representative of the several initial purchasers (filed as Exhibit 4.2 to Cliffs' Form 10-Q for the period ended March 31, 2017 and incorporated herein by reference)
4.15	Joinder to Registration Rights Agreement, dated as of August 7,2017, by and among Cliffs Natural Resources Inc. (n/k/a Cleveland-Cliffs Inc.), the Guarantors party thereto and Credit Suisse Securities (USA) LLC, as representative of the several initial purchasers (filed as Exhibit 4.3 to Cliffs' Form 8-K on August 7, 2017 and incorporated herein by reference)
4.16	Form of Common Share Certificate (filed as Exhibit 4.4 to Cliffs’ Form 10-Q for the period ended September 30, 2017 and incorporated herein by reference)
	Material contracts
10.1	Syndicated Facility Agreement, dated as of March 30, 2015, by and among Bank of America, N.A., as Administrative Agent and Australian Security Trustee, the Lenders that are Parties hereto, as the Lenders, Cliffs Natural Resources Inc., as Parent and a Borrower, and the Subsidiaries of Parent Party hereto, as Borrowers (filed as Exhibit 10.2 to Cliffs’ Form 10-Q for the period ended March 31, 2015 and incorporated herein by reference)
10.2	First Amendment to Syndicated Facility Agreement, dated as of June 17, 2016, to that certain Syndicated Facility Agreement, dated as of March 30, 2015, by and among Bank of America, N.A., as Administrative Agent and Australian Security Trustee, the Lenders that are Parties hereto, as the Lenders, Cleveland-Cliffs Inc., as Parent and a Borrower, and the Subsidiaries of Parent Party hereto, as Borrowers (filed as Exhibit 10.3 to Cliffs’ Form 10-Q for the period ended June 30, 2016 and incorporated herein by reference)
10.3	* Form of Change in Control Severance Agreement (covering newly hired officers) (filed as Exhibit 10.4 to Cliffs’ Form 8-K/A on September 16, 2014 and incorporated herein by reference)
10.4	* Form of 2016 Change in Control Severance Agreement (filed as Exhibit 10.1 to Cliffs’ 10-Q for the period ended September 30, 2016 and incorporated herein by reference)
10.5	* Cleveland-Cliffs Inc. 2012 Non-Qualified Deferred Compensation Plan (effective January 1, 2012) dated November 8, 2011 (filed as Exhibit 10.1 to Cliffs’ Form 8-K on November 8, 2011 and incorporated herein by reference)
10.6	* Form of Indemnification Agreement between Cliffs Natural Resources Inc. and Directors (filed as Exhibit 10.5 to Cliffs’ Form 10-K for the period ended December 31, 2011 and incorporated herein by reference)
10.7	* Cliffs Natural Resources Inc. Nonemployee Directors’ Compensation Plan (Amended and Restated as of December 31, 2008) (filed as Exhibit 10(nnn) to Cliffs’ Form 10-K for the period ended December 31, 2008 and incorporated herein by reference)
10.8	* Cliffs Natural Resources Inc. Amended and Restated 2014 Nonemployee Directors’ Compensation Plan (filed as Exhibit 10.1 to Cliffs’ Form 8-K on May 2, 2016 and incorporated herein by reference)
10.9	* Trust Agreement No. 1 (Amended and Restated effective June 1, 1997), dated June 12, 1997, by and between Cleveland-Cliffs Inc and KeyBank National Association, Trustee, with respect to the Cleveland-Cliffs Inc Supplemental Retirement Benefit Plan, Severance Pay Plan for Key Employees and certain executive agreements (filed as Exhibit 10.10 to Cliffs’ Form 10-K for the period ended December 31, 2011 and incorporated herein by reference)
10.10	* Trust Agreement No. 1 Amendments to Exhibits, effective as of January 1, 2000, by and between Cleveland-Cliffs Inc and KeyBank National Association, as Trustee (filed as Exhibit 10.11 to Cliffs’ Form 10-K for the period ended December 31, 2011 and incorporated herein by reference)
10.11	* First Amendment to Trust Agreement No. 1, effective September 10, 2002, by and between Cleveland-Cliffs Inc and KeyBank National Association, as Trustee (filed as Exhibit 10.12 to Cliffs’ Form 10-K for the period ended December 31, 2011 and incorporated herein by reference)

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10.12	* Second Amendment to Trust Agreement No. 1 between Cliffs Natural Resources Inc. (f/k/a Cleveland-Cliffs Inc) and KeyBank National Association, Trustee, entered into and effective as of December 31, 2008 (filed as Exhibit 10(y) to Cliffs’ Form 10-K for the period ended December 31, 2008 and incorporated herein by reference)
10.13	* Third Amendment to Trust Agreement No. 1 between Cliffs Natural Resources Inc. (f/k/a Cleveland-Cliffs Inc) and KeyBank National Association, Trustee, entered into and effective as of July 28, 2014 (filed as Exhibit 10.15 to Cliffs’ Form 10-K for the period ended December 31, 2014 and incorporated herein by reference)
10.14	* Amended and Restated Trust Agreement No. 2, effective as of October 15, 2002, by and between Cleveland-Cliffs Inc and KeyBank National Association, Trustee, with respect to Executive Agreements and Indemnification Agreements with the Company’s Directors and certain Officers, the Company’s Severance Pay Plan for Key Employees, and the Retention Plan for Salaried Employees (filed as Exhibit 10.14 to Cliffs’ Form 10-K for the period ended December 31, 2011 and incorporated herein by reference)
10.15	* Second Amendment to Amended and Restated Trust Agreement No. 2 between Cliffs Natural Resources Inc. (f/k/a Cleveland-Cliffs Inc) and KeyBank National Association, Trustee, entered into and effective as of December 31, 2008 (filed as Exhibit 10(aa) to Cliffs’ Form 10-K for the period ended December 31, 2008 and incorporated herein by reference)
10.16	* Third Amendment to Amended and Restated Trust Agreement No. 2 between Cliffs Natural Resources Inc. (f/k/a Cleveland-Cliffs Inc) and KeyBank National Association, Trustee, entered into and effective as of July 28, 2014 (filed as Exhibit 10.18 to Cliffs’ Form 10-K for the period ended December 31, 2014 and incorporated herein by reference)
10.17	* Trust Agreement No. 5, dated as of October 28, 1987, by and between Cleveland-Cliffs Inc and KeyBank National Association, Trustee, with respect to certain deferred compensation agreements (filed as Exhibit 10.16 to Cliffs’ Form 10-K for the period ended December 31, 2011 and incorporated herein by reference)
10.18	* First Amendment to Trust Agreement No. 5, dated as of May 12, 1989, by and between Cleveland-Cliffs Inc and KeyBank National Association, Trustee (filed as Exhibit 10.17 to Form 10-K of Cliffs’ for the period ended December 31, 2011 and incorporated herein by reference)
10.19	* Second Amendment to Trust Agreement No. 5, dated as of April 9, 1991, by and between Cleveland-Cliffs Inc and KeyBank National Association, Trustee (filed as Exhibit 10.18 to Form 10-K of Cliffs’ for the period ended December 31, 2011 and incorporated herein by reference)
10.20	* Third Amendment to Trust Agreement No. 5, dated as of March 9, 1992, by and between Cleveland-Cliffs Inc and KeyBank National Association, Trustee (filed as Exhibit 10.19 to Cliffs’ Form 10-K for the period ended December 31, 2011 and incorporated herein by reference)
10.21	* Fourth Amendment to Trust Agreement No. 5, dated November 18, 1994, by and between Cleveland-Cliffs Inc and KeyBank National Association, Trustee (filed as Exhibit 10.20 to Cliffs’ Form 10-K for the period ended December 31, 2011 and incorporated herein by reference)
10.22	* Fifth Amendment to Trust Agreement No. 5, dated May 23, 1997, by and between Cleveland-Cliffs Inc and KeyBank National Association, Trustee (filed as Exhibit 10.19 to Cliffs’ Form 10-K for the period ended December 31, 2011 and incorporated herein by reference)
10.23	*Sixth Amendment to Trust Agreement No. 5 between Cliffs Natural Resources Inc. (f/k/a Cleveland-Cliffs Inc) and KeyBank National Association, Trustee, entered into and effective as of December 31, 2008 (filed as Exhibit 10(hh) to Cliffs’ Form 10-K for the period ended December 31, 2008 and incorporated herein by reference)
10.24	*Seventh Amendment to Trust Agreement No. 5 between Cliffs Natural Resources Inc. (f/k/a Cleveland-Cliffs Inc) and KeyBank National Association, Trustee, entered into and effective as of July 28, 2014 (filed as Exhibit 10.26 to Cliffs’ Form 10-K for the period ended December 31, 2014 and incorporated herein by reference)
10.25	* Trust Agreement No. 7, dated as of April 9, 1991, by and between Cliffs Natural Resources Inc and KeyBank National Association, Trustee, with respect to the Cleveland-Cliffs Inc Supplemental Retirement Benefit Plan (filed as Exhibit 10.23 to Cliffs’ Form 10-K for the period ended December 31, 2011 and incorporated herein by reference)
10.26	* First Amendment to Trust Agreement No. 7, by and between Cleveland-Cliffs Inc and KeyBank National Association, Trustee, dated as of March 9, 1992 (filed as Exhibit 10.24 to Cliffs’ Form 10-K for the period ended December 31, 2011 and incorporated herein by reference)
10.27	* Second Amendment to Trust Agreement No. 7, dated November 18, 1994, by and between Cleveland-Cliffs Inc and KeyBank National Association, Trustee (filed as Exhibit 10.25 to Cliffs’ Form 10-K for the period ended December 31, 2011 and incorporated herein by reference)
10.28	* Third Amendment to Trust Agreement No. 7, dated May 23, 1997, by and between Cleveland-Cliffs Inc and KeyBank National Association, Trustee (filed as Exhibit 10.26 to Cliffs’ Form 10-K for the period ended December 31, 2011 and incorporated herein by reference)

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10.29	* Fourth Amendment to Trust Agreement No. 7, dated July 15, 1997, by and between Cleveland-Cliffs Inc and KeyBank National Association, Trustee (filed as Exhibit 10.27 to Cliffs’ Form 10-K for the period ended December 31, 2011 and incorporated herein by reference)
10.30	* Amendment to Exhibits to Trust Agreement No. 7, effective as of January 1, 2000, by and between Cleveland-Cliffs Inc and KeyBank National Association, Trustee (filed as Exhibit 10.28 to Cliffs’ Form 10-K for the period ended December 31, 2011 and incorporated herein by reference)
10.31	* Sixth Amendment to Trust Agreement No. 7 between Cliffs Natural Resources Inc. (f/k/a Cleveland-Cliffs Inc) and KeyBank National Association, Trustee, entered into and effective as of December 31, 2008 (filed as Exhibit 10(oo) to Cliffs’ Form 10-K for the period ended December 31, 2008 and incorporated herein by reference)
10.32	* Seventh Amendment to Trust Agreement No. 7 between Cliffs Natural Resources Inc. (f/k/a Cleveland-Cliffs Inc) and KeyBank National Association, Trustee, entered into and effective as of July 28, 2014 (filed as Exhibit 10.34 to Cliffs’ Form 10-K for the period ended December 31, 2014 and incorporated herein by reference)
10.33	* Trust Agreement No. 10, dated as of November 20, 1996, by and between Cleveland-Cliffs Inc and KeyBank National Association, Trustee, with respect to the Cleveland-Cliffs Inc Nonemployee Directors’ Compensation Plan (filed as Exhibit 10.36 to Cliffs’ Form 10-K for the period ended December 31, 2011 and incorporated herein by reference)
10.34	*First Amendment to Trust Agreement No. 10 between Cliffs Natural Resources Inc. (f/k/a Cleveland-Cliffs Inc) and KeyBank National Association, Trustee, entered into and effective as of December 31, 2008 (filed as Exhibit 10(ww) to Cliffs’ Form 10-K for the period ended February 26, 2009 and incorporated herein by reference)
10.35	* Second Amendment to Trust Agreement No. 10 between Cliffs Natural Resources Inc. (f/k/a Cleveland-Cliffs Inc) and KeyBank National Association, Trustee, entered into and effective as of July 28, 2014 (filed as Exhibit 10.45 to Cliffs’ Form 10-K for the period ended December 31, 2014 and incorporated herein by reference)
10.36	*Severance Agreement and Release, by and between P. Kelly Tompkins and Cleveland-Cliffs Inc., effective December 31, 2017 (filed as Exhibit 10.36 to Cliffs' Form 10-K for the period ended December 31, 2017 and incorporated herein by reference)
10.37	* Letter Agreement, by and between Lourenco Goncalves and Cliffs Natural Resources Inc., signed as of September 11, 2014 (filed as Exhibit 10.1 to Cliffs’ Form 8-K/A on September 16, 2014 and incorporated herein by reference)
10.38	* Cleveland-Cliffs Inc and Subsidiaries Management Performance Incentive Plan Summary, effective January 1, 2004 (filed as Exhibit 10.47 to Cliffs’ Form 10-K for the period ended December 31, 2011 and incorporated herein by reference)
10.39	* Cliffs Natural Resources Inc. 2012 Executive Management Performance Incentive Plan effective March 13, 2012 (filed as Exhibit 10.3 to Cliffs’ Form 8-K on May 14, 2012 and incorporated herein by reference)
10.40	* Cliffs Natural Resources Inc. 2017 Executive Management Performance Incentive Plan effective January 1, 2017 (filed as Exhibit 10.2 to Cliffs' Form 8-K on April 27, 2017 and incorporated herein by reference)
10.41	* Cliffs Natural Resources Inc. Amended and Restated 2012 Incentive Equity Plan (filed as Exhibit 10.1 to Cliffs’ Form 8-K on August 4, 2014 and incorporated herein by reference)
10.42	* Form of Cliffs Natural Resources Inc. Amended and Restated 2012 Incentive Equity Plan Non-Qualified Stock Option Award Memorandum (2014 Grant) and Stock Option Award Agreement (filed as Exhibit 10.2 to Cliffs’ Form 8-K/A on September 16, 2014 and incorporated herein by reference)
10.43	* Form of Cliffs Natural Resources Inc. Amended and Restated 2012 Incentive Equity Plan Performance Unit Award Memorandum (2014 Grant) and Performance Unit Award Agreement (filed as Exhibit 10.3 to Cliffs’ Form 8-K/A on September 16, 2014 and incorporated herein by reference)
10.44	* Form of Cliffs Natural Resources Inc. Amended and Restated 2012 Incentive Equity Plan Non-Qualified Stock Option Award Memorandum (3-Year Vesting – January 2015 Grant) and Stock Option Award Agreement (filed as Exhibit 10.69 to Cliffs’ Form 10-K for the period ended December 31, 2014 and incorporated herein by reference)
10.45	* Form of Cliffs Natural Resources Inc. Amended and Restated 2012 Incentive Equity Plan Performance Share Award Memorandum (3-Year Vesting – January 2015 Grant) and Performance Share Award Agreement (filed as Exhibit 10.71 to Cliffs’ Form 10-K for the period ended December 31, 2014 and incorporated herein by reference)
10.46	* Form of Cliffs Natural Resources Inc. Amended and Restated 2012 Incentive Equity Plan Performance Share Award Memorandum (3 year Vesting – February 2015 Grant) and Restricted Share Unit Award Agreement (filed as Exhibit 10.73 to Cliffs’ Form 10-K for the period ended December 31, 2014 and incorporated herein by reference)

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10.47	* Cliffs Natural Resources Inc. 2015 Equity and Incentive Compensation Plan (filed as Exhibit 10.1 to Cliffs’ Form 8-K on May 21, 2015 and incorporated herein by reference)
10.48	* Form of Cliffs Natural Resources Inc. 2015 Equity and Incentive Compensation Plan Restricted Stock Unit Award Memorandum (Vesting May 2018) and Restricted Stock Unit Award Agreement (filed as Exhibit 10.61 to Cliffs’ Form 10-K for the period ended December 31, 2015 and incorporated herein by reference)
10.49	* Form of Cliffs Natural Resources Inc. 2015 Equity and Incentive Compensation Plan Restricted Stock Unit Award Memorandum (Vesting December 31, 2018) and Restricted Stock Unit Award Agreement (filed as Exhibit 10.1 to Cliffs’ Form 10-Q for the period ended March 31, 2016 and incorporated herein by reference)
10.50	* Form of Cliffs Natural Resources Inc. 2015 Equity and Incentive Compensation Plan Cash Incentive Award Memorandum (TSR) (Vesting December 31, 2018) and Cash Incentive Award Agreement (TSR) (filed as Exhibit 10.2 to Cliffs’ Form 10-Q for the period ended March 31, 2016 and incorporated herein by reference)
10.51	* Form of Cliffs Natural Resources Inc. 2015 Equity and Incentive Compensation Plan Cash Incentive Award Memorandum (EBITDA) (January 1, 20XX - December 31, 20XX) and Cash Incentive Award Agreement (EBITDA) (filed as Exhibit 10.3 to Cliffs’ Form 10-Q for the period ended March 31, 2016 and incorporated herein by reference)
10.52	* Form of Cliffs Natural Resources Inc. 2015 Equity and Incentive Compensation Plan, as Amended, Performance Share Award Memorandum and Performance Share Award Agreement (filed as Exhibit 10.3 to Cliffs’ Form 10-Q for the period ended June 30, 2017 and incorporated herein by reference)
10.53	* Cliffs Natural Resources Inc. Amended and Restated 2015 Equity and Incentive Compensation Plan (filed as Exhibit 10.1 to Cliffs’ Form 8-K on April 27, 2017 and incorporated herein by reference)
10.54	* Form of Cliffs Natural Resources Inc. Amended and Restated 2015 Equity and Incentive Compensation Plan Performance Share Award Memorandum and Performance Share Award Agreement (filed as Exhibit 10.4 to Cliffs’ Form 10-Q for the period ended June 30, 2017 and incorporated herein by reference)
10.55	* Form of Cliffs Natural Resources Inc. Amended and Restated 2015 Equity and Incentive Compensation Plan Restricted Stock Unit Award Memorandum and Restricted Stock Unit Award Agreement (filed as Exhibit 10.5 to Cliffs’ Form 10-Q for the period ended June 30, 2017 and incorporated herein by reference)
10.56	* Cliffs Natural Resources Inc. Supplemental Retirement Benefit Plan (as Amended and Restated effective December 1, 2006) dated December 31, 2008 (filed as Exhibit 10(mmm) to Cliffs’ Form 10-K for the period ended December 31, 2008 and incorporated herein by reference)
10.57	* Cliffs Natural Resources Inc. 2015 Employee Stock Purchase Plan (filed as Exhibit 4.4 to Cliffs’ Registration Statement on Form S-8 on August 20, 2015 and incorporated herein by reference)
10.58	** Pellet Sale and Purchase Agreement, effective as of October 31, 2016, by and among Cliffs Natural Resources Inc., The Cleveland-Cliffs Iron Company and Cliffs Mining Company and ArcelorMittal USA LLC (filed as Exhibit 10.72 to Cliffs’ Registration Statement on Form S-1/A No. 333-212054 on August 4, 2016 and incorporated herein by reference)
10.59	** Amended and Restated Pellet Sale and Purchase Agreement, effective as of December 31, 2015, by and among The Cleveland-Cliffs Iron Company, Cliffs Mining Company and AK Steel Corporation (filed herewith)
12	Ratio of Earnings To Combined Fixed Charges And Preferred Stock Dividend Requirements (filed as Exhibit 12 to Cliffs' Form 10-K for the period ended December 31, 2017 and incorporated herein by reference)
21	Subsidiaries of the Registrant (filed as Exhibit 21 to Cliffs' Form 10-K for the period ended December 31, 2017 and incorporated herein by reference)
23	Consent of Independent Registered Public Accounting Firm (filed as Exhibit 23 to Cliffs' Form 10-K for the period ended December 31, 2017 and incorporated herein by reference)
24	Power of Attorney (filed as Exhibit 24 to Cliffs' Form 10-K for the period ended December 31, 2017 and incorporated herein by reference)
31.1	Certification Pursuant to 15 U.S.C. Section 7241, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, signed and dated by Lourenco Goncalves as of February 14, 2018 (filed as Exhibit 31.1 to Cliffs' Form 10-K for the period ended December 31, 2017 and incorporated herein by reference)
31.2	Certification Pursuant to 15 U.S.C. Section 7241, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, signed and dated by Timothy K. Flanagan as of February 14, 2018 (filed as Exhibit 31.2 to Cliffs' Form 10-K for the period ended December 31, 2017 and incorporated herein by reference)
31.3	Certification Pursuant to 15 U.S.C. Section 7241, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, signed and dated by Lourenco Goncalves as of March 13, 2018 (filed herewith)
31.4	Certification Pursuant to 15 U.S.C. Section 7241, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, signed and dated by Timothy K. Flanagan as of March 13, 2018 (filed herewith)

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32.1	Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, signed and dated by Lourenco Goncalves, Chairman, President and Chief Executive Officer of Cleveland-Cliffs Inc., as of February 14, 2018 (filed as Exhibit 32.1 to Cliffs' Form 10-K for the period ended December 31, 2017 and incorporated herein by reference)
32.2	Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, signed and dated by Timothy K. Flanagan, Executive Vice President, Chief Financial Officer of Cleveland-Cliffs Inc., as of February 14, 2018 (filed as Exhibit 32.2 to Cliffs' Form 10-K for the period ended December 31, 2017 and incorporated herein by reference)
95	Mine Safety Disclosures (filed as Exhibit 95 to Cliffs' Form 10-K for the period ended December 31, 2017 and incorporated herein by reference)
99(a)	Schedule II – Valuation and Qualifying Accounts (filed as Exhibit 99(a) to Cliffs' Form 10-K for the period ended December 31, 2017 and incorporated herein by reference)
101.INS	**** XBRL Instance Document
101.SCH	**** XBRL Taxonomy Extension Schema Document
101.CAL	**** XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	**** XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	**** XBRL Taxonomy Extension Label Linkbase Document
101.PRE	**** XBRL Taxonomy Extension Presentation Linkbase Document

*		Indicates management contract or other compensatory arrangement.
**		Confidential treatment requested and/or approved as to certain portions, which portions have been omitted and filed separately with the Securities and Exchange Commission.
***		Certain immaterial schedules and exhibits to this exhibit have been omitted pursuant to the provisions of Regulation S-K, Item 601(b)(2). A copy of any of the omitted schedules and exhibits will be furnished to the Securities and Exchange Commission upon request.
****		Previously filed or furnished, as required, with the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2017, filed with the SEC on February 14, 2018.

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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

			CLEVELAND-CLIFFS INC.
			By:		/s/ R. C. Cebula
					Name:		R. Christopher Cebula
					Title:		Vice President, Corporate Controller &
Date:	March 13, 2018						Chief Accounting Officer

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