1. AGC Inc.
2. Balchem Inc.
3. BASF SE
4. Huntsman Corporation
5. Indorama Ventures Public Company Limited
6. INEOS AG
7. LyondellBasell Industries Holding B.V.
8. Merck KGaA
9. PCC Rokita SA
10. Repsol
S.A.
11. Saudi Basic Industries Corporation
12. Shell International B.V.
13. SKC Company
14. Sumitomo Chemical Co. Ltd.
15. The Dow Chemical Company
16. Tokuyama Corporation