1. Advanced Technology & Materials Co. Ltd.
2. ATI Inc.
3. Catalus Corporation
4. Fine-Sinter Co. Ltd.
5. GKN Powder Metallurgy Engineering GMBH
6. H.C. Starck Tungsten GmbH
7. Hoganas AB
8. JSC POLEMA
9. Liberty Steel Group
10. Miba AG
11. Molyworks Materials Corp.
12. Rio Tinto PLC
13. Sandvik AB
14. Showa Denko Materials Co. Ltd.
15. Sumitomo Electric Industries
Ltd.