1. Advent International Corporation
2. ALBERDINGK BOLEY GmbH
3. Arkema S.A.
4. BASF SE
5. Berkshire Hathaway Inc.
6. CBC Co.ltd
7. Celanese Corporation
8. Covestro AG
9. DIC Corporation
10. Dow Inc
11. Eternal Materials Co. Ltd.
12. Evonik Industries AG
13. Hexion Inc.
14. Huntsman International LLC
15. Jiangsu Sanmu Group Corporation
16. Kraton Corporation
17. Kukdo Chemical Co Ltd
18. Mitsubishi Chemical Corporation
19. Mitsui Chemicals
Inc
20. S.C. Brenntag S.R.L.
21. Solvay S.A.
22. Toray Industries Inc.
23. Wacker Chemie AG