1. Ashland Inc.
2. Celotech Chemical Co. Ltd.
3. Changzhou Guoyu Environmental Science and Technology Co. Ltd.
4. DuPont de Nemours Inc.
5. FENCHEM
6. Hebei Yibang Building Materials Co. Ltd
7. Kima Chemical Co. Ltd.
8. Merck KGaA
9. Mitsubishi Chemical Holdings Corporation
10. SE Tylose GmbH & Co. KG
11. Shijiazhuang Shangdun Cellulose Co. LTD
12. Shin-Etsu Chemical Co. Ltd.
13. SLEOCHEM
14. Universal Mine Chem
15. Zhejiang Haishen New Materials Limited