| Exact Name of Issuer or Guarantor Subsidiary (1) | Reported as Issuer or Guarantor Subsidiary | State of Incorporation or Organization | IRS Employer Identification Number | |||||||||||||||||
| Cleveland-Cliffs Inc. | Issuer | Ohio | 34-1464672 | |||||||||||||||||
| Cleveland-Cliffs Burns Harbor LLC f/k/a ArcelorMittal Burns Harbor LLC | (3) | Delaware | 20-0653414 | |||||||||||||||||
| Cleveland-Cliffs Cleveland Works LLC f/k/a ArcelorMittal Cleveland LLC | (3) | Delaware | 04-3634649 | |||||||||||||||||
| Cleveland-Cliffs Columbus LLC f/k/a ArcelorMittal Columbus LLC | (3) | Delaware | 01-0807137 | |||||||||||||||||
| Cleveland-Cliffs Investments Inc. f/k/a AKS Investments, Inc. | (3) | Ohio | 31-1283531 | |||||||||||||||||
| Cleveland-Cliffs Kote Inc. f/k/a ArcelorMittal Kote Inc. | (3) | Delaware | 36-3665216 | |||||||||||||||||
| Cleveland-Cliffs Kote L.P. f/k/a I/N Kote L.P. | (3) | Delaware | 36-3665288 | |||||||||||||||||
| Cleveland-Cliffs Minorca Mine Inc. f/k/a ArcelorMittal Minorca Mine Inc. | (3) | Delaware | 36-2814042 | |||||||||||||||||
| Cleveland-Cliffs Monessen Coke LLC f/k/a ArcelorMittal Monessen LLC | (3) | Delaware | 25-1850170 | |||||||||||||||||
| Cleveland-Cliffs Plate LLC f/k/a ArcelorMittal Plate LLC | (3) | Delaware | 20-0653500 | |||||||||||||||||
| Cleveland-Cliffs Railways Inc. f/k/a Mittal Steel USA - Railways Inc. | (3) | Delaware | 56-2348283 | |||||||||||||||||
| Cleveland-Cliffs Riverdale LLC f/k/a ArcelorMittal Riverdale LLC | (3) | Delaware | 74-3062732 | |||||||||||||||||
| Cleveland-Cliffs South Chicago & Indiana Harbor Railway Inc. f/k/a ArcelorMittal South Chicago & Indiana Harbor Railway Inc. | (3) | Delaware | 04-3634638 | |||||||||||||||||
| Cleveland-Cliffs Steel Corporation f/k/a AK Steel Corporation | (3) | Delaware | 31-1267098 | |||||||||||||||||
| Cleveland-Cliffs Steel Holding Corporation f/k/a AK Steel Holding Corporation | (3) | Delaware | 31-1401455 | |||||||||||||||||
| Cleveland-Cliffs Steel LLC f/k/a ArcelorMittal USA LLC | (3) | Delaware | 71-0871875 | |||||||||||||||||
| Cleveland-Cliffs Steel Management Inc. f/k/a AH Management, Inc. | (3) | Delaware | 51-0390893 | |||||||||||||||||
| Cleveland-Cliffs Steel Properties Inc. f/k/a AK Steel Properties, Inc. | (3) | Delaware | 51-0390894 | |||||||||||||||||
| Cleveland-Cliffs Steelton LLC f/k/a ArcelorMittal Steelton LLC | (3) | Delaware | 20-0653772 | |||||||||||||||||
Cleveland-Cliffs Steelworks Railway Inc. f/k/a ArcelorMittal Cleveland Works Railway Inc. | (3) | Delaware | 04-3634622 | |||||||||||||||||
| Cleveland-Cliffs Tek Inc. f/k/a ArcelorMittal Tek Inc. | (3) | Delaware | 36-3519946 | |||||||||||||||||
Cleveland-Cliffs Tek Kote Acquisition Corporation f/k/a Tek Kote Acquisition Corporation | (3) | Ohio | 85-4304182 | |||||||||||||||||
| Cleveland-Cliffs Tek L.P. f/k/a I/N Tek L.P. | (3) | Delaware | 363525438 | |||||||||||||||||
| Cleveland-Cliffs Tubular Components LLC f/k/a AK Tube LLC | (3) | Delaware | 31-1283531 | |||||||||||||||||
| Cleveland-Cliffs Weirton LLC f/k/a ArcelorMittal Weirton LLC | (3) | Delaware | 56-2435202 | |||||||||||||||||
| Cannon Automotive Solutions - Bowling Green, Inc. | (3) | Delaware | 26-0766559 | |||||||||||||||||
| Cleveland-Cliffs Steel Holdings Inc. | (3) | Ohio | 85-4084783 | |||||||||||||||||
| Cliffs Mining Company | (2) | Delaware | 34-1120353 | |||||||||||||||||
| Cliffs Minnesota Mining Company | (2) | Delaware | 42-1609117 | |||||||||||||||||
| Cliffs TIOP Holding, LLC | (2) | Delaware | 47-2182060 | |||||||||||||||||
| Cliffs TIOP, Inc. | (2) | Michigan | 34-1371049 | |||||||||||||||||
| Cliffs TIOP II, LLC | (2) | Delaware | 61-1857848 | |||||||||||||||||
| Cliffs UTAC Holding LLC | (2) | Delaware | 26-2895214 | |||||||||||||||||
| Fleetwood Metal Industries, LLC | (3) | Delaware | 98-0508950 | |||||||||||||||||
| IronUnits LLC | (2) | Delaware | 34-1920747 | |||||||||||||||||
| Lake Superior & Ishpeming Railroad Company | (2) | Michigan | 38-6005761 | |||||||||||||||||
| Metallics Sales Company | (3) | Delaware | 84-2076079 | |||||||||||||||||
| Mid-Vol Coal Sales, Inc. | (3) | West Virginia | 55-0761501 | |||||||||||||||||
| Mountain State Carbon, LLC | (3) | Delaware | 31-1267098 | |||||||||||||||||
| Northshore Mining Company | (2) | Delaware | 84-1116857 | |||||||||||||||||
| Exact Name of Issuer or Guarantor Subsidiary (1) | Reported as Issuer or Guarantor Subsidiary | State of Incorporation or Organization | IRS Employer Identification Number | |||||||||||||||||
| Precision Partners Holding Company | (3) | Delaware | 22-3639336 | |||||||||||||||||
| PPHC Holdings, LLC | (3) | Delaware | 31-1283531 | |||||||||||||||||
| Silver Bay Power Company | (2) | Delaware | 84-1126359 | |||||||||||||||||
| SNA Carbon, LLC | (3) | Delaware | 31-1267098 | |||||||||||||||||
| The Cleveland-Cliffs Iron Company | (2) | Ohio | 34-0677332 | |||||||||||||||||
| Tilden Mining Company L.C. | (2) | Michigan | 34-1804848 | |||||||||||||||||
| United Taconite LLC | (2) | Delaware | 42-1609118 | |||||||||||||||||
| (1) The address and phone number of each issuer and guarantor subsidiary is c/o Cleveland-Cliffs Inc., 200 Public Square, Suite 3300, Cleveland, Ohio 44114, (216) 694-5700. | ||||||||||||||||||||
| (2) The entity is included as a guarantor subsidiary as of December 31, 2020 and 2019. | ||||||||||||||||||||
| (3) The entity is included as a guarantor subsidiary as of December 31, 2020. | ||||||||||||||||||||