1. Atlas Roofing Corporation
2. BASF SE
3. EASTMAN CHEMICAL COMPANY
4. Innova
5. JACKON GROUP by BEWI ASA
6. Knauf Industries Gestion
7. SABIC
8. Sekisui Kasei Co. Ltd.
9. STYROPEK MEXICO S. A. DE C. V
10. Styrotech Inc.
11. SUNPOR Kunststoff GmbH
12. Synthos S.A.
13. Taita Chemical Co. Ltd.
14. TotalEnergies SE
15. Trinseo PLC
16. Versalis S.P.A.