1. Baimtec Material Co. Ltd.
2. Bay Composites Inc.
3. Beijing Great Wall Co.Ltd
4. Cabot Corporation
5. Carbon Composites Inc.
6. GrafTech International Ltd.
7. Hexcel Corporation
8. Mersen S.A.
9. Mitsubishi Rayon Co. Ltd.
10. Nippon Carbon Co. Ltd.
11. SCHUNK GmbH & Co. KG
12. SGL Carbon SE
13. Solvay Group
14. TEIJIN LIMITED
15. Toray Industries Inc.
16. Toyo Tanso Co. Ltd.
17. ZOLTEK Corporation