1. Armacell
2. Borealis AG
3. Dafa A/S
4. DS Smith PLC
5. Furukawa Electric Co. Ltd
6. Hanwha TotalEngine Petrochemical Co. Ltd.
7. JSP Corporation
8. Kaneka Corporation
9. MITSUI CHEMICALS AMERICA Inc.
10. NMC SA
11. Sealed Air Corporation
12. SEKISUI CHEMICAL CO. LTD.
13. The Dow Chemical Company
14. Toray Industries Inc.
15. Zotefoams PLC