1. Albemarle Corporation
2. ANTEN CHEMICAL CO. LTD.
3. Arkema SA
4. BASF SE
5. Clariant AG
6. Credo Group
7. Eurecat Group
8. Honeywell International Inc.
9. Huiying Chemical Industry (Quanzhou) Co.Ltd.
10. KNT Group
11. National Aluminum Company Limited
12. Ningbo Jiahe New Materials Technology Co. Ltd.
13. PQ LLC
14. Tosoh Corporation
15. W. R. Grace & Co. by Standard Industries Holdings Inc.
16. ZEOCHEM AG