1. 5N Plus Inc.
2. ACI Alloys Inc.
3. ALB Materials Inc.
4. Aldon Corporation
5. Aluminum Corporation of China Limited
6. American Elements
7. AXT Inc.
8. BELMONT METALS INC.
9. Cathay Advanced Materials Limited
10. Chengdu Fufu Technology Co. Ltd.
11. Dowa Holdings Co. Ltd.
12. ESPI Metals
13. Freiberger Compound Materials GmbH
14. Furukawa Co. Ltd.
15. Gelest Inc.
16. Indium Corporation
17. IQE PLC
18. Merck KGaA
19. Nanoshel LLC
20. Neo Performance Materials
21. RusAL
22. Shin-Etsu Chemical Co. Ltd.
23. Solar Applied Materials Technology Corporation
24. Sumitomo Electric Industries
Ltd.
25. Thermo Fisher Scientific Inc.
26. Umicore N.V.
27. Vital Materials Co. Limited
28. Zhuzhou Keneng New Material Co. Ltd.