1. Asahi Kasei Corporation
2. Aurora Plastics (S&E Specialty Polymers Llc)
3. Basf Se
4. Covestro Ag
5. Dow Chemical Company
6. Dupont
7. Kraton Corporation
8. Kuraray Co Ltd
9. Lanxess Ag
10. Lyondellbasell Industries Nv
11. Rtp Company
12. Saudi Basic Industries Corporation (Sabic)
13. So.F.Ter Group (Acquired By Celanese)
14. Solvay Sa
15. Teijin Limited
16. Teknor Apex Company
17. Washington Penn Plastic Co Inc (Wpp)