1. Air Products and Chemicals Inc.
2. Applied Materials Inc.
3. BASF SE
4. Cabot Corporation
5. DuPont de Nemours Inc.
6. Ebara Technologies Inc.
7. Entegris Inc.
8. FUJIMI CORPORATION
9. HORIBA
Ltd.
10. Kemet International Ltd.
11. Lam Research Corporation
12. Lapmaster Wolters GmbH
13. Logitech Ltd. by Logitech International SA
14. Merck KGaA
15. MKS Instruments Inc.
16. Okamoto Machine Tool Works
Ltd.
17. Saint-Gobain S.A.
18. Showa Denko Materials Co. Ltd. by Hitachi
Ltd.
19. Tokyo Seimitsu Co. Ltd.