1. 20 Microns Limited
2. American Elements
3. Calcinor
S.A.
4. Changzhou Calcium carbonate Co. Ltd.
5. Chu Shin Chemical Corporation Limited
6. Fimatec Ltd.
7. Fujian Sanmu Nano Calcium Carbonate Co.Ltd.
8. Guangdong Qiangda New Materials Technology Co. Ltd.
9. Hebei Lixin Chemistry Co. Ltd.
10. ICL Group Ltd.
11. Imerys S.A.
12. J.M. Huber Corporation
13. Jiangxi Jiufeng Nano Calcium Carbonate Co. Ltd.
14. Lime Chemicals Limited
15. Maruo Calcium Co. Ltd.
16. Minerals Technologies Inc.
17. Mississippi Lime Company
18. Nanochemazone
19. NanoMaterials Technology Pte Ltd.
20. Nanoshel LLC
21. Omya AG
22. Shanghai Xinglu Chemical Technology Co. Ltd.
23. Shiraishi Group
24. SINO SUNMAN International
25. Solvay S.A.
26. Takehara Chemical Industrial Co. Ltd.
27. Vishnupriya Chemicals Pvt. Ltd.
28. Yuncheng Chemical Industrial Co. Ltd.
29. Zhejiang Jiande Longhua Plastic Chemical Co. Ltd