?- BHP
- CMOC
- Cobalt Blue Holdings Limited
- Eramet
- Eurasian Resources Group
- G?camines SA
- Glencore
- Huayou Cobalt Co. Ltd.
- Jervois
- Jinchuan Group International Resources Co. Ltd
- Panoramic Resources
- Sherritt International Corporation
- Umicore N.V.
- Vale
- Wheaton Precious Metals Corp