# TRIMET Aluminium SE Group identifier: aiwaw:trimet-aluminium-se Ultimate owner: Ultimate owner not established in GLEIF – Reason given in GLEIF: no known controlling person Basis of membership: group as recorded in company documents – Source [C]: “Companies” register – group entry in company documents (no relations in GLEIF) Data as of: 2026-10-21, version 2.32 Page: https://ai-waw.com/en/companies/groups/trimet-aluminium-se ## At a glance TRIMET Aluminium SE – 4 companies in the register with 10 plants in 2 countries (most: Germany 8, France 2). Metals of the plants: aluminium. Main links of the chain: smelting and refining – 6 plants; processing – 3 plants. Membership follows the group as recorded in company documents, without a GLEIF consolidation relationship. Largest full capacity in a single stage: primary aluminium smelter (aluminium) – 541 kt/yr, 4 operating plants (no ownership shares in plants). ## Value-chain coverage | Link | Plants | Stages | |---|---:|---| | Raw materials | 0 | – | | Smelting and refining | 6 | primary aluminium smelter 4; secondary aluminium and foundry alloys 2 | | Processing | 3 | remelt and wrought-ingot casthouse 1; wire rod, wire and conductors 1; die and permanent-mould foundry 1 | | Products | 0 | – | | Recycling | 1 | non-ferrous scrap recycling 1 | | End uses | 0 | – | ## Plants by country | Country | Plants | |---|---:| | Germany | 8 | | France | 2 | ## Full capacity by metal and stage Full capacity of operating single-metal plants – separately for each stage and unit; no sum across stages (a smelter and an extrusion press process the same metal) and no ownership shares in plants (next stage). Multi-metal plants – in the totals table below. | Metal | Stage | Full capacity | Unit | Plants in total | |---|---|---:|---|---:| | aluminium | primary aluminium smelter | 541 | kt/yr | 4 | | aluminium | remelt and wrought-ingot casthouse | 100 | kt/yr | 1 | | aluminium | secondary aluminium and foundry alloys | 80 | kt/yr | 1 | ## Group structure - **TRIMET Aluminium SE** (corporate group; aiwaw:trimet-aluminium-se) - [TRIMET Automotive Harzgerode GmbH](https://ai-waw.com/en/companies/trimet-automotive-harzgerode-gmbh.md) (company; Germany; register · C) - TRIMET Automotive Harzgerode GmbH (Harzgerode, Germany) – plant; die and permanent-mould foundry; operating; class B - [TRIMET](https://ai-waw.com/en/companies/trimet.md) (company; Germany; LEI 52990021AYVJLL2XMK94; Business register HRB 24574; register · C) - TRIMET Essen (Essen, Germany) – plant; primary aluminium smelter; operating; Capacity: 165 kt/yr; class B - TRIMET Hamburg (Hamburg, Germany) – plant; primary aluminium smelter; operating; Capacity: 135 kt/yr; class B - TRIMET Voerde (Voerde, Germany) – plant; primary aluminium smelter; operating; Capacity: 96 kt/yr; class B - [TRIMET Aluminium SE](https://ai-waw.com/en/companies/trimet-aluminium-se.md) (company; Germany; LEI 52990021AYVJLL2XMK94; Business register HRB 24574; register · C) - Recyclingwerk Gelsenkirchen (Gelsenkirchen, Germany) – plant; secondary aluminium and foundry alloys; operating; Capacity: 80 kt/yr; class B - Standort Harzgerode (Harzgerode, Germany) – plant; secondary aluminium and foundry alloys; operating; class B - Essen site (foundry and recycling) (Essen, Germany) – plant; remelt and wrought-ingot casthouse; operating; Capacity: 100 kt/yr; class B - Castelsarrasin – TRIMET plant (Castelsarrasin, France) – plant; wire rod, wire and conductors; operating; class A - Hamm site (scrap sorting and preparation) (Hamm, Germany) – plant; non-ferrous scrap recycling; under construction; class B - [TRIMET France](https://ai-waw.com/en/companies/trimet-france.md) (company; France; LEI 96950007IGUPVOBNLV14; Business register 519029573; register · C) - TRIMET France Saint-Jean-de-Maurienne (Saint-Jean-de-Maurienne, France) – plant; primary aluminium smelter; operating; Output 2024: 133 kt primary aluminium (potline output); Capacity: 145 kt/yr; class A ## Capacity and output of the group companies’ plants Totals cover the full capacity (and output) of operating plants owned by the group companies, without taking shares in jointly owned plants into account; capacity attributed to the group by share will be added in the next stage. Only values in the same unit and for the same metal are added up. | Metal | Stage | capacity / output | Unit | Plants in total | |---|---|---:|---|---:| | aluminium | primary aluminium smelter | 541 (capacity) | kt/yr | 4 | | aluminium | secondary aluminium and foundry alloys | 80 (capacity) | kt/yr | 1 | | aluminium | remelt and wrought-ingot casthouse | 100 (capacity) | kt/yr | 1 | | aluminium | primary aluminium smelter | 133 (output 2024) | kt primary aluminium (potline output) | 1 | ## Flow analyses “Metal flows” analyses in which plants of the group companies appear; below – analyses covering the metal and country of the group plants. - [Aluminium Flows in Germany](https://ai-waw.com/en/metal-flows/aluminium-flows-germany.md) – in the analysis: 8 plants, 3 companies - [EU-27 Aluminium Flows](https://ai-waw.com/en/metal-flows/eu-aluminium-flow-analysis.md) – in the analysis: 4 plants, 2 companies - [Aluminium Flows in France](https://ai-waw.com/en/metal-flows/aluminium-flows-france.md) – in the analysis: 2 plants, 2 companies ## Similar groups Similarity: common metals (weight 0.5), chain links (0.3) and plant countries (0.2) – Jaccard index; only groups with at least one common metal. - [OETINGER Aluminium](https://ai-waw.com/en/companies/groups/oetinger-aluminium.md) – in common: aluminium; smelting and refining, processing, recycling; Germany - [American Industrial Partners](https://ai-waw.com/en/companies/groups/american-industrial-partners.md) – in common: aluminium; smelting and refining, processing; France - [Norsk Hydro ASA](https://ai-waw.com/en/companies/groups/norsk-hydro-asa.md) – in common: aluminium; smelting and refining, processing, recycling; Germany, France - [Hindalco Industries Limited](https://ai-waw.com/en/companies/groups/hindalco-industries-limited.md) – in common: aluminium; smelting and refining, processing; Germany ## Data quality - Source class of plants: A 2, B 8, C 0 - Plants verified at source: 10 / 10 (2026-10-08 – 2026-10-08) - Ownership relationships of companies: GLEIF relationship (class A): 0 of 4; group as recorded: 4 of 4; companies with an LEI: 3 of 4 - Basis of membership: group as recorded in company documents (class C); Reason given in GLEIF: no known controlling person The group card (page and Markdown) is open to text and data mining with attribution; the JSON data – like the other JSON data of the register – is reserved as a compiled database. Relationships from GLEIF: CC0 1.0.