| Facility | Type | Country | t CO₂e/yr |
|---|---|---|---|
| Cleveland-Cliffs Indiana Harbor steel plant | Steel Plant | United States | 9,040,985 |
| Cleveland-Cliffs Burns Harbor steel plant | Steel Plant | United States | 5,655,090 |
| Cleveland-Cliffs Dearborn steel plant | Steel Plant | United States | 5,263,134 |
| Cleveland-Cliffs Middletown steel plant | Steel Plant | United States | 4,194,912 |
| Cleveland-Cliffs Cleveland steel plant | Steel Plant | United States | 4,072,302 |
| Cleveland-Cliffs Lake Erie steel plant | Steel Plant | Canada | 3,642,472 |
| Cleveland-Cliffs Riverdale steel plant | Steel Plant | United States | 1,018,179 |
| Cleveland-Cliffs Steelton steel plant | Steel Plant | United States | 138,479 |
| Cleveland-Cliffs Mansfield Works | Steel Plant | United States | 82,580 |
| Cleveland-Cliffs Butler steel plant | Steel Plant | United States | 50,396 |
| Cleveland-Cliffs Coatesville steel plant | Steel Plant | United States | 44,402 |
Ownership, capacity & CO₂: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).