1. AkzoNobel N.V.
2. Albemarle Corporation
3. Aquapharm Chemical Pvt. Ltd.
4. Ashland Inc.
5. Baker Hughes Company
6. BASF SE
7. CES Energy Solutions Corp.
8. ChampionX Corporation
9. Chevron Phillips Chemical Company LLC
10. Clariant International Ltd
11. Croda International PLC
12. Dow Chemical Company
13. Halliburton Energy Services Inc.
14. Huntsman International LLC
15. Innospec Inc.
16. Kemira Oyj
17. Lubrizol Corporation
18. Newpark Resources Inc.
19. Schlumberger Limited
20. SMC Global
21. SNF Group
22. Solvay S.A.
23. Stepan Company
24. Thermax Limited
25. Veolia USA Inc.
26. W. R. Grace & Co.