1. Ashland Inc.
2. BASF SE
3. BioAmber Inc.
4. Chongqing JianFeng Chemical Co. Ltd.
5. Dairen Chemical Corporation
6. Evonik Industries AG
7. Formosa Plastics Corporation
8. INEOS Group Limited
9. JSR Corporation
10. Koch Industries Inc.
11. Lanxess AG
12. LG Chem Ltd
13. LyondellBasell Industries N.V.
14. Mitsubishi Chemical Corporation
15. PPG Industries Inc.
16. Repsol S.A.
17. Saudi International Petrochemical Company
18. SK Global Chemical Co. Ltd.
19. The Dow Chemical Company