1. Airedale Chemical Co. Ltd.
2. Akzo Nobel NV
3. American Elements
4. Chemtrade Logistics Inc.
5. Dongying Shengya Chemical Co. Ltd.
6. Ercros SA
7. Fengchen Group Co. Ltd.
8. Kemira Oyj
9. Merck KGaA
10. Occidental Petroleum Corp.
11. OSAKA SODA CO. Ltd.
12. Otsuka Holdings Co. Ltd.
13. Otto Chemie Pvt. Ltd.
14. Parchem Fine and Specialty Chemicals
15. Shandong Gaomi Gaoyuan Chemical Industry Co. Ltd.
16. Shree Chlorates Pvt. Ltd.
17. Thermo Fisher Scientific Inc.
18. Tronox Holdings Plc