1. BASF SE
2. BEWi ASA
3. Chevron Phillips Company
4. DuPont de Nemours Inc.
5. Jiangsu Leasty Chemicals Co. Ltd.
6. Loyal Group
7. NOVA Chemicals Corporation
8. Ravago
9. Saudi Basic Industries Corporation
10. Sunpor Kunststoff GmbH
11. Synthos S.A
12. Taita Chemical Co. Ltd.
13. Total SE
14. Versalis S.p.A
15. Wuxi Xingda New Foam Plastics Materials Co. Ltd.