1. Arkema SA
2. Chang Chun Group
3. China Petroleum & Chemical Corporation
4. Clariant AG
5. Ineos Group Ltd.
6. Innospec Inc.
7. Japan Vam & Poval Co. Ltd.
8. Jubilant Pharma Limited
9. KH Chemicals BV
10. Kuraray Co. Ltd.
11. LyondellBasell Industries N.V.
12. Sahara International Petrochemical Company
13. Showa Denko K. K.
14. Solventis
15. Wacker Chemie AG