1. Applied Material Solutions Inc.
2. Cabot Corporation
3. China-Henan Huamei Chemical Co. Ltd.
4. Dailan Fuchang Chemical Co. Ltd.
5. Dongyue Group Ltd.
6. Evonik Industries AG
7. OCI Company Ltd.
8. Oriental Silica Corporation
9. Power Chemical Corporation
10. PPG Industries Inc.
11. PQ Corporation
12. Solvay SA
13. Tata Chemicals Limited
14. The Kish Company Inc.
15. Tosoh Silica Corporation
16. W.R. Grace & Co.