1. AGC Group
2. Akzo Nobel N.V.
3. BASF SE
4. Coogee Chemicals Pty Ltd.
5. Covestro AG
6. Detrex Corporation
7. Dongyue Group
8. ERCO Worldwide LP
9. Ercros S.A.
10. GFS Chemicals Inc.
11. INEOS AG
12. Merck KGaA
13. Nouryon Chemicals Holding B.V.
14. Occidental Petroleum Corporation
15. Solvay S.A