1. 20 Microns Ltd.
2. AMC (UK) Limited
3. Artha Mineral Resources
4. Ashapura Group of Companies
5. BASF SE
6. Clariant AG
7. EP Minerals by U.S. Silica Holdings Inc.
8. Global Bleach Chem Pvt. Ltd.
9. HRP Industries
10. Indian Clay & mineral Co.
11. Keyway Industrial Limited
12. Korvi Fullers Earth Processiing Industry
13. Leping Jiejing Bleaching Earth Co. Ltd.
14. Manek Active Clay Pvt. Ltd.
15. Minerals Technologies Inc
16. Musim Mas Group
17. Oil-Dri Corporation of America
18. Phoenix Chemicals (Pvt.) Ltd.
19. Refoil Earth Pvt. Ltd.
20. Shijiazhuang Huabang Imp.&Exp. Trade Co. Ltd.
21. Sunrise (Hong Kong) Group Limited.
22. Taiko Group of Companies
23. Terram Chemical
24. The W Clay Industries Sdn. Bhd.
25. Tolsa
SA