1. Albemarle Corporation
2. Almatis GmbH
3. Ecolab Inc.
4. Heibei Yanda Technology Group Co. Ltd.
5. Hindalco Industries Limited
6. Nabaltec AG
7. Nanning Wuming Guanghui Metal Materials Co. Ltd.
8. Nippon Light Metal Holdings Company
Ltd.
9. Qingzhou Zhongyuan Chemical Industry Co. Ltd.
10. Shandong Aluminium
11. Showa Denko K. K
12. Sumitomo Chemical Co. Ltd.
13. Taixing Shenlong Chemical Co. Ltd.
14. The R.J. Marshall Company
15. Thermo Fisher Scientific Inc.
16. Zibo Dexin Lianbang Chemical Industry Co. Ltd.
17. Zibo Pengfeng New Material Technology Co. Ltd.