| # | Facility | Type | Country | t CO₂e/yr |
|---|---|---|---|---|
| 1 | Equinor Mongstad Crude Oil Refinery | Refinery | Norway | 2,527,215 |
| 2 | Sunndalsora aluminium plant | Aluminium Smelter | Norway | 865,096 |
| 3 | Noretyl AS, Rafnes, Bamble | Petrochemical | Norway | 848,245 |
| 4 | Hydro Aluminium, Sunndal | Metals Plant | Norway | 660,000 |
| 5 | Yara Porsgrunn | Chemical Plant | Norway | 630,300 |
| 6 | Karmoy aluminium plant | Aluminium Smelter | Norway | 583,940 |
| 7 | Elkem Salten | Metals Plant | Norway | 476,000 |
| 8 | Aardal aluminium plant | Aluminium Smelter | Norway | 441,199 |
| 9 | Husnes aluminium plant | Aluminium Smelter | Norway | 432,548 |
| 10 | Mosjoen aluminium plant | Aluminium Smelter | Norway | 432,548 |
| 11 | Alcoa Mosjøen | Metals Plant | Norway | 425,000 |
| 12 | Vedde As | Food & Beverage | Norway | 401,300 |
| 13 | Hydro Aluminium, Karmøy | Metals Plant | Norway | 336,000 |
| 14 | ERAMET NORWAY AS, Sauda | Metals Plant | Norway | 320,000 |
| 15 | Elkem Bremanger | Metals Plant | Norway | 319,000 |
| 16 | Hydro Aluminium, Årdal Metallverk | Metals Plant | Norway | 304,095 |
| 17 | Trondheim Tjeldbergodden Methanol | Chemical Plant | Norway | 300,375 |
| 18 | Elkem Rana AS | Metals Plant | Norway | 298,000 |
| 19 | Finnfjord | Metals Plant | Norway | 284,000 |
| 20 | Elkem Thamshavn | Metals Plant | Norway | 277,000 |
| 21 | Wacker Chemicals Norway | Metals Plant | Norway | 274,000 |
| 22 | Brevik Cement Plant | Cement Plant | Norway | 257,971 |
| 23 | Eramet Norway Kvinesdal | Metals Plant | Norway | 228,000 |
| 24 | Kjopsvik Cement Plant | Cement Plant | Norway | 213,423 |
| 25 | Eramet Norway AS, Porsgrunn | Metals Plant | Norway | 185,000 |
| 26 | ELKEM ASA AVD BJØLVEFOSSEN | Metals Plant | Norway | 174,000 |
| 27 | Elkem Bjølvefossen | Metals Plant | Norway | 172,000 |
| 28 | Norfrakalk | Lime Plant | Norway | 167,177 |
| 29 | Alcoa aluminium, Lista | Metals Plant | Norway | 160,000 |
| 30 | Sør-Norge Aluminium | Metals Plant | Norway | 142,000 |
| 31 | Hoyanger aluminium plant | Aluminium Smelter | Norway | 140,578 |
| 32 | Ferroglobe Mangan Norge AS | Metals Plant | Norway | 139,730 |
| 33 | Lista aluminium plant | Aluminium Smelter | Norway | 138,415 |
| 34 | Rhi Normag As | Lime Plant | Norway | 138,147 |
| 35 | ERAMET NORWAY AS, Porsgrunn | Metals Plant | Norway | 131,000 |
| 36 | Hydro Aluminium, Høyanger | Metals Plant | Norway | 104,000 |
| 37 | Sma Mineral As | Lime Plant | Norway | 76,331 |
| 38 | Verdalskalk Hylla | Lime Plant | Norway | 76,331 |
| 39 | MM FOLLACELL Pulp Mill | Pulp & Paper Mill | Norway | 70,255 |
| 40 | Sev.en GI Mo i Rana steel plant | Steel Plant | Norway | 63,261 |
| 41 | Vafos Pulp - Heva Holding | Pulp & Paper Mill | Norway | 43,234 |
| 42 | NOR-Aure_methanol | Chemical Plant | Norway | 40,146 |
| 43 | Rygene - Smith & Thommesen A/S | Pulp & Paper Mill | Norway | 37,830 |
| 44 | Borregaard ChemCell | Pulp & Paper Mill | Norway | 32,425 |
| 45 | Giax Produksjon As | Textiles | Norway | 4,270 |
| 46 | Glencore Manganese Norway | Metals Plant | Norway | 2,730 |
Method: ranked from open data — capacity & CO₂e from Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0). Sorted server-side; click any column to re-sort. Company-level data only.