1. Aditya Birla Chemicals Limited
2. Bohra Industries Ltd.
3. Innophos Holdings Inc.
4. Israel Chemical Ltd.
5. MA’ADEN
6. Merck KGaA
7. Nutrien
8. PhosAgro Group of Companies
9. Prasol Chemicals Pvt. Ltd.
10. Prayon S.A. by OCP Group
11. Sinofert Holdings Limited
12. Solvay S.A.
13. The Mosaic Company
14. UPL Limited
15. Vinipul Inorganics Pvt. Ltd.
16. Yunnan Phosphate Haikou Co. Ltd.