1. Atotech by MKS Instruments
2. BASF SE
3. Celanese Corporation
4. Chevron Phillips Chemical
5. Covestro AG by Stratasys Ltd.
6. DuPont de Nemours Inc.
7. Formosa Plastics Group
8. Ineos Nova LLC
9. LG Chem Ltd.
10. LyondellBasell by Viva Energy
11. Mitsubishi Chemical Holdings Corporation
12. SABIC
13. Solvay S.A
14. The Dow Chemical Company
15. Trinseo S.A.