1. BASF SE
2. Fuji Kasei Co. Ltd.
3. GFS Chemicals Inc.
4. Jiangsu Huachang Chemical Co. Ltd.
5. LANXESS Deutschland GmbH
6. Lianyungang Junge Environmental Technology Co. Ltd.
7. Merck KGaA
8. Palm Commodities International
LLC by Umicore USA Inc.
9. ProChem Inc.
10. Star Grace Mining Co. Ltd.
11. The Chemical Company
12. The Dallas Group of America Inc.
13. The Dow Chemical Company
14. Tuticorin Alkali Chemicals and Fertilizers Limited
15. Zaclon LLC