1. BASF SE
2. Borealis AG by OMV Aktiengesellschaft
3. Braskem SA
4. Chevron Corporation
5. Exxon Mobil Corporation
6. Formosa Plastics Corporation
7. Haldia Petrochemicals Limited
8. Hanwha Group
9. Kavian Petrochemical Corporation by Bakhtar Petrochemical Company
10. LyondellBasell Industries N.V.
11. Merck KGaA
12. PTT Public Company Limited
13. Reliance Industries Limited
14. Shell PLC
15. The Dow Chemical Company