1. Alcobra GmbH
2. Aurubis AG
3. Brassco Tube Industries
4. Cambridge-Lee Industries LLC
5. Cerro Flow Products LLC
6. ElvalHalcor Hellenic Copper and Aluminium industry S.A.
7. Emil M?ller GmbH Metallwerk
8. Furukawa Electric Co. Ltd
9. Ganpat Industrial Corporation
10. Hailiang Group
11. JF Engineering Products LLP
12. Junbaocheng Steel Limited
13. KEMBLA by Metal Manufactures Pty Limited
14. KMCT Corporation
15. KME Group
16. Kobe Steel Ltd.
17. Luvata by Mitsubishi Materials Corporation
18. MANDEV TUBES
19. Mehta Tubes Limited
20. Mercure Metals & Alloys Pvt Ltd
21. MetTube Sdn. Bhd.
22. MST Edelstahlrohr GmbH
23. MUELLER INDUSTRIES Inc.
24. MUNOT METALLOYS
25. Ningbo Jintian Copper (Group) Co. Ltd.
26. Nippon Tokushukan MFG.Co.Ltd.
27. QAEM Copper Industries
28. Qingdao Hongtai Copper Co. Ltd.
29. Reta Copper Industries Co.Ltd
30. RFS Hydraulics Sdn Bhd.
31. Shanghai Metal Corporation
32. SMS group GmbH
33. Standard-Metallwerke GmbH
34. Wieland-Werke AG
35. Yingtan Winland Metallurgy Co. Ltd.