# VDM Metals

Group: Acerinox S.A.  
Ownership path: VDM Metals (company, LEI 5299006PP7HZVHSDPZ14) → [Acerinox S.A.](https://www.ai-waw.com/en/companies/groups/acerinox-s-a.md) (corporate group, LEI 95980020140005582721)  
Country of seat: Germany  
Data as of: 2026-10-20, version 2.31  
Page: https://www.ai-waw.com/en/companies/vdm-metals

## Plants

### Altena (Altena, Germany)

- Link: nickel alloys – melting and processing
- Status: operating
- Metals: nickel
- Coordinates: 51.3, 7.67
- Source [B]: VDM Metals website – https://www.vdm-metals.com
- Source [C]: VDM Metals – employer profile (production plants Siegen, Altena, Werdohl, Unna) – https://www.ausbildung.de/unternehmen/vdm-metals-holding-gmbh/
- Note: VDM Metals thin strip and wire plant in Altena (Lenne valley). Owner: Acerinox (since 2020).
- Verified at source: 2026-10-08

### Siegen (Siegen, Germany)

- Link: nickel alloys – melting and processing
- Status: operating
- Metals: nickel
- Coordinates: 50.87, 8.02
- Source [B]: VDM Metals website – https://www.vdm-metals.com
- Source [C]: VDM Metals – employer profile (production plants Siegen, Altena, Werdohl, Unna) – https://www.ausbildung.de/unternehmen/vdm-metals-holding-gmbh/
- Note: A long products and forgings plant of VDM Metals (former Vereinigte Deutsche Metallwerke) in Siegen. Owner: Acerinox (since 2020).
- Verified at source: 2026-10-08

### Unna (Unna, Germany)

- Link: nickel alloys – melting and processing
- Status: operating
- Metals: nickel
- Coordinates: 51.54, 7.69
- Source [B]: VDM Metals website – https://www.vdm-metals.com
- Source [B]: Acerinox – Capital Markets Day 2023 (visit to the VDM plant in Unna: melting, forge, powders) – https://www.acerinox.com/export/sites/acerinox/es/accionistas-e-inversores/.galleries/Otros-documentos-Accionistas-e-inversores/ACERINOX-CMD-2023.pdf
- Note: A rolling mill for nickel alloy flat products of the VDM Metals group (Acerinox since 2020).
- Verified at source: 2026-10-08

### Werdohl (Werdohl, Germany)

- Link: nickel alloys – melting and processing
- Status: operating
- Metals: nickel
- Coordinates: 51.26, 7.77
- Source [B]: VDM Metals website; Acerinox annual report 2024 – https://www.vdm-metals.com
- Source [C]: VDM Metals – employer profile (production plants Siegen, Altena, Werdohl, Unna) – https://www.ausbildung.de/unternehmen/vdm-metals-holding-gmbh/
- Note: Head office and main melting plant of VDM Metals (formerly Krupp VDM / ThyssenKrupp VDM); taken over by Spain's Acerinox in March 2020. Makes Nicrofer, Cronifer, Nimofer and other high-nickel alloys.
- Verified at source: 2026-10-08