Facility counts by sector, Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).
| # | Facility | Type | t CO₂e/yr |
|---|---|---|---|
| 1 | Fjardaal aluminium plant | Aluminium Smelter | 759,122 |
| 2 | Grundartangi aluminium plant | Aluminium Smelter | 692,077 |
| 3 | Norðurál Grundartangi ehf. | Metals Plant | 469,201 |
| 4 | Straumsvik aluminium plant | Aluminium Smelter | 432,548 |
| 5 | Rio Tinto á Íslandi hf. | Metals Plant | 292,395 |
| 6 | Alcoa Fjarðaál | Metals Plant | 536 |