1. Celanese Corporation

2. LyondellBasell Industries NV

3. The Dow Chemical Company

4. DuPont de Nemours Inc

5. Kuraray Co Ltd

6. Ineos Group Ltd

7. Chang Chun Petrochemical Co Ltd

8. Dairen Chemical Corp

9. Sinopec International Petroleum Exploration & Production Corp

10. Wacker Chemie AG