9 aluminium smelters in United States, ranked by reported capacity and CO₂ — from open data.
| # | Facility | t of alumina/aluminum | t CO₂e/yr |
|---|---|---|---|
| 1 | Gramercy Alumina Refinery | 1,200,000 | 610,790 |
| 2 | Saint James Parish | 741,301 | 377,316 |
| 3 | Hawesville aluminium plant | 250,000 | 525,702 |
| 4 | Sebree aluminium plant | 220,000 | 467,530 |
| 5 | New Madrid aluminium plant | 187,000 | 397,401 |
| 6 | Mount Holly aluminium plant | 184,000 | 391,025 |
| 7 | Massena aluminium plant | 130,000 | 276,268 |
| 8 | Evansville aluminium plant | 107,000 | 227,390 |
| 9 | Henderson County | 711 | 362 |
Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).
