| # | Facility | t of steel | t CO₂e/yr |
|---|---|---|---|
| 1 | ArcelorMittal Dunkerque steel plant | 6,750,000 | 8,859,539 |
| 2 | ArcelorMittal Méditerranée Fos sur Mer steel plant | 5,100,000 | 4,780,174 |
| 3 | Celsa France Boucau steel plant | — | 46,352 |
| 4 | Marcegaglia Fos Sur Mer steel plant | 900,000 | 34,764 |
| 5 | Riva Sam Neuves-Maisons steel plant | 850,000 | 32,832 |
| 6 | Ascometal Hagondange steel plant | 825,000 | 31,867 |
| 7 | LME Trith-Saint-Léger steel plant | 820,000 | 31,674 |
| 8 | Saarstahl Ascoval Saint-Saulve steel plant | 730,000 | 28,197 |
| 9 | Riva Sam Montereau steel plant | 720,000 | 27,811 |
| 10 | Riva Alpa Gargenville steel plant | 700,000 | 27,038 |
| 11 | Riva Iton Seine Bonnieres Sur Seine steel plant | 550,000 | 21,244 |
Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).