- Almatis
- Alteo
- ALUMINA - CHEMICALS & CASTABLES
- Aluminum Corporation of China Ltd (Chalco)
- MAL - Magyar Alumnium
- Nabaltec AG
- Sumitomo Chemical Co. Ltd
- Huber Materials
- Sibelco
- LKAB Minerals AB
- TOR Minerals International Inc.
- Akrochem Corporation
- Hindalco (Aditya Birla Management Corporation Pvt. Ltd)