1. BASF SE
2. Biosynth Ltd.
3. Central Drug House (P) Ltd.
4. Clariant AG
5. Cromogenia Units Sa
6. DEZA A.S.
7. Epsilon Carbon Limited
8. GEO Specialty Chemicals Inc.
9. Giovanni Bozzetto S.p.A.
10. Henan Daken Chemical Co. Ltd.
11. Himadri Specialty Chemical Ltd.
12. JFE Chemical Corporation
13. Kao Corporation
14. King Industries Inc.
15. Koppers Inc.
16. Manish Minerals & Chemicals
17. Merck KGaA
18. Monument Chemical
19. Nouryon Chemicals Holding B.V.
20. PCC Group
21. Qu?mica del Nal?n S.A.
22. Shandong Jufu Chemical Technology Co. Ltd.