Metals and steel: emissions by company in Norway
5.2 Mt CO2e in 2025 from 22 metals and steel installations in Norway, run by 15 companies; 4.5 Mt of it covered by free allowances. Source: Arcadium Data, data as of .
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Largest operating companies
| Operating company | Installations | Emissions 2025 | Free allocation | Allowances to buy |
|---|---|---|---|---|
| Elkem ASA | 5 | 1.1 Mt | 0.9 Mt | 0.2 Mt |
| Hydro Aluminium AS Sunndal aluminiumsverk | 1 | 0.7 Mt | 0.6 Mt | 47 kt |
| Eramet Norway AS | 3 | 0.6 Mt | 0.6 Mt | 85 kt |
| Alcoa Norway AS | 2 | 0.6 Mt | 0.6 Mt | 31 kt |
| Wacker Chemicals Norway AS | 1 | 0.4 Mt | 0.3 Mt | 0.1 Mt |
| Hydro Aluminium AS Karmøy aluminiumsverk | 1 | 0.4 Mt | 0.3 Mt | 66 kt |
| Hydro Aluminium AS Årdal metallverk | 1 | 0.3 Mt | 0.3 Mt | 37 kt |
| Finnfjord AS | 1 | 0.3 Mt | 0.2 Mt | 64 kt |
| Sør-Norge Aluminium AS | 1 | 0.3 Mt | 0.3 Mt | none |
| Ineos Tyssedal AS | 1 | 0.2 Mt | 0.3 Mt | none |
| Ferroglobe Mangan Norge AS | 1 | 0.1 Mt | 41 kt | 74 kt |
| Hydro Aluminium AS Høyanger aluminiumsverk | 1 | 0.1 Mt | 0.1 Mt | 9 kt |
| Celsa Armeringsstål AS | 1 | 82 kt | 83 kt | none |
| Speira AS | 1 | 15 kt | 10 kt | 5 kt |
| Boliden Odda AS | 1 | 5 kt | 29 kt | none |
Largest installations
| Installation | Activity | Country | Operating company | Emissions 2025 |
|---|---|---|---|---|
| Hydro Aluminium AS Sunndal aluminiumsverk | Production of primary aluminium | Norway | Hydro Aluminium AS Sunndal aluminiumsverk | 0.7 Mt |
| Alcoa Mosjøen | Production of primary aluminium | Norway | Alcoa Norway AS | 0.4 Mt |
| Wacker Chemicals Norway AS | Production or processing of non-ferrous metals | Norway | Wacker Chemicals Norway AS | 0.4 Mt |
| Hydro Aluminium AS Karmøy aluminiumsverk | Production of primary aluminium | Norway | Hydro Aluminium AS Karmøy aluminiumsverk | 0.4 Mt |
| Elkem Salten | Production or processing of ferrous metals | Norway | Elkem ASA | 0.3 Mt |
| Hydro Aluminium AS Årdal metallverk | Production of primary aluminium | Norway | Hydro Aluminium AS Årdal metallverk | 0.3 Mt |
| Eramet Norway AS, Sauda | Production or processing of ferrous metals | Norway | Eramet Norway AS | 0.3 Mt |
| Finnfjord AS | Production or processing of ferrous metals | Norway | Finnfjord AS | 0.3 Mt |
| Sør-Norge Aluminium AS | Production of primary aluminium | Norway | Sør-Norge Aluminium AS | 0.3 Mt |
| Ineos Tyssedal | Production or processing of ferrous metals | Norway | Ineos Tyssedal AS | 0.2 Mt |
| Eramet Norway AS, Kvinesdal | Production or processing of ferrous metals | Norway | Eramet Norway AS | 0.2 Mt |
| Elkem Bremanger | Production or processing of ferrous metals | Norway | Elkem ASA | 0.2 Mt |
| Elkem Thamshavn | Production or processing of non-ferrous metals | Norway | Elkem ASA | 0.2 Mt |
| Elkem Rana | Production or processing of ferrous metals | Norway | Elkem ASA | 0.2 Mt |
| Alcoa Lista | Production of primary aluminium | Norway | Alcoa Norway AS | 0.1 Mt |
| Elkem Bjølvefossen | Production or processing of ferrous metals | Norway | Elkem ASA | 0.1 Mt |
| Ferroglobe Mangan Norway AS | Production or processing of ferrous metals | Norway | Ferroglobe Mangan Norge AS | 0.1 Mt |
| Hydro Aluminium AS Høyanger aluminiumsverk | Production of primary aluminium | Norway | Hydro Aluminium AS Høyanger aluminiumsverk | 0.1 Mt |
| Eramet Norway AS, Porsgrunn | Production or processing of ferrous metals | Norway | Eramet Norway AS | 92 kt |
| Celsa Armeringsstål AS | Production of pig iron or steel | Norway | Celsa Armeringsstål AS | 82 kt |
| Holmestrand Rolled Products | Production of secondary aluminium | Norway | Speira AS | 15 kt |
| Boliden Odda AS | Production or processing of non-ferrous metals | Norway | Boliden Odda AS | 5 kt |
Emissions are verified EU Emissions Trading System emissions in tonnes of CO2 equivalent for 2025: the installations, aircraft operators and shipping companies covered by the ETS, not a company's total footprint (no scope 2 or 3, no sites outside the ETS). Free allocation is the free allowances allocated for the same year; "allowances to buy" is emissions minus free allocation, the exposure that grows as free allocation is phased out under CBAM from 2026. Companies only: an account holder that is not a company is never shown. Data as of 2026-10-25, updated yearly.
Emissions and allocation: European Commission, Union Registry of the EU ETS (verified emissions, free allocation, compliance and the list of operators; Commission reuse policy, CC BY 4.0). Parent company and pollutant releases of facilities: European Environment Agency, Industrial Emissions Portal (CC BY 4.0). Legal-entity identifiers: GLEIF (CC0).
Questions
Where does this data come from?
The European Commission publishes verified emissions, free allocation and compliance of every installation in the EU Emissions Trading System, and the list of operators with company registration number and LEI. We join them to the operating company, its website and its ultimate parent, and record changes each year.
Is this a full carbon footprint?
No. It covers emissions that fall under the EU ETS (power and heat, heavy industry, aviation within Europe, shipping). It has no scope 2 or scope 3 emissions and no sites outside the ETS.
Does the list show private persons?
No. Operators are shown only when they are companies. Account holders that could be natural persons are left out, and the data has no addresses or contact details.
Cite as: Arcadium Data, "Metals and steel: emissions by company in Norway: 5.2 Mt in 2025", https://arcadiumdata.io/emissions/no/metals-and-steel/, data as of 2026-10-25.