- Anglo American
- BHP
- Cunico Corp.
- Eramet
- INDEPENDENCE GROUP NL
- Jinchuan Group International Resources Co. Ltd
- Norilsk Nickel
- Pacific Metal Company
- QUEENSLAND NICKEL SALES
- Sherritt International Corporation
- Sumitomo Metal Mining Co. Ltd
- Terrafame
- Vale
- Votorantim
- Glencore