1. 3M Company
2. Active Enterprises
3. Advanced Ceramic Technology
4. Advanced Ceramics Corp.
5. Advanced Ceramics Manufacturing
6. AGC Inc.
7. Alcoa Corporation
8. Alteo Holding
9. Ants Ceramics Pvt Ltd.
10. Applied Ceramics
11. Blasch Precision Ceramics Inc.
12. Ceramitec Industries
13. CeramTec GmbH
14. Coherent Corp.
15. COI Ceramics Inc.
16. Compagnie de Saint-Gobain
17. CoorsTek Inc.
18. Corning Incorporated
19. Elan Technology Inc.
20. Elkem ASA
21. Ferrotec Holdings Corporation
22. Formlabs Inc.
23. Imerys S.A.
24. Kyocera Corporation
25. LouwersHanique B.V. by IDEX Corporation
26. MARUWA Co. Ltd.
27. Maruwai Advanced Ceramics L.P.
28. Materion Corporation
29. Midlands Industrial Ceramics Group
30. MO SCI
LLC
31. Nabaltec AG
32. NGK Insulators
Ltd. by Morimura Group
33. Nishimura Advanced Ceramics Co. Ltd.
34. Paul Rauschert GmbH & Co. KG
35. Precision Ceramics UK Limited
36. Robert Bosch GmbH
37. SINTX Technologies Inc.
38. Toray Industries Inc.
39. WONIK QnC Corporation