1. Braskem SA
2. Bridgestone Corporation
3. Chevron Phillips Chemical Company
4. China Petroleum & Chemical Corporation
5. Continental AG
6. Dow Inc
7. Exxon Mobil Corporation.
8. FORTREC PTE LTD.
9. Haihang Industry Co. Ltd.
10. Kuraray Co. Ltd.
11. LyondellBasell Industries Holding B.V.
12. Manufacture fran?aise des Pneumatiques Michelin S.C.A.
13. Ningbo Jinhai Chenguang Chemical Corporation
14. Shandong Yuhuang Chemical Co. Ltd
15. Shell Plc.