1. Basf Se
2. C Thai Chemicals Co Ltd
3. Ciech Group
4. Evonik Industries Ag
5. Iqe Group
6. Kiran Global Chems Ltd
7. Merck Millipore Limited
8. Nippon Chemical Industrial Co Ltd
9. Occidental Petroleum Corporation
10. Ppg Industries Inc
11. Pq Corporation
12. Silmaco Nv
13. Sinchem Silica Gel Co Ltd
14. Tokoyama Corporation
15. Wr Grace & Co