1. Admat Inc.
2. Advanced Engineering Materials Limited
3. Alliance Mineral Assets Limited.
4. AMG Advanced Metallurgical Group N.V.
5. Andrada Mining Limited
6. Avalon Advanced Materials Inc.
7. CNMC Ningxia Orient Group Co. Ltd.
8. Fort Wayne Metals Research Products
LLC
9. Global Advanced Metals Pty Ltd
10. Jiangxi Tungsten Industry Holding Group Co. Ltd.
11. JX Metals Corporation
12. Luoyang Combat Tungsten & Molybdenum Materials Co. Ltd.
13. Lynas Rare Earths Ltd
14. Marula Mining PLC
15. Materion Corporation
16. Merck KGaA
17. Minsur S.A.
18. Mitsubishi Corporation
19. Neo Performance Materials Inc.
20. Ningxia Orient Tantalum Industry Co. Ltd.
21. Noah Chemicals Corporation
22. Pella Resources Limited
23. Pilbara Minerals Limited
24. Plansee SE
25. Power Resources International Ltd.
26. Strategic Minerals Europe Corp.
27. Tantalex Lithium Resources Corporation
28. Tantalum Mining Corp. of Canada Ltd
29. Tantec GmbH
30. Treibacher Industrie AG
31. U.S. Titanium Industry Inc.
32. Ultra Minor Metals Ltd
33. Ultramet
34. Usha Resources Ltd.