1. Apcotex Industries Limited
2. Asahi Kasei Corporation
3. China Petroleum & Chemical Corporation
4. Denka Company Limited
5. DYNASOL GESTI?N S.L.
6. Exxon Mobil Corporation
7. Goodyear Tire & Rubber Company
8. Indian Synthetic Rubber Private Limited
9. Kraton Corporation
10. Kumho Petrochemical Co. Ltd.
11. LG Chem Ltd.
12. LION ELASTOMERS LLC
13. Mitsui Chemicals Inc.
14. PJSC Nizhnekamskneftekhim by TAIF Group
15. Saudi Basic Industries Corporation
16. Synthos S.A.
17. Zeon Corporation