1. Afton Chemical by NewMarket Corporation
2. Ametek Inc.
3. Amsoil Inc.
4. Baker Hughes Company
5. BASF SE
6. BRB International B.V. by Petronas Chemicals Group Berhad
7. Chevron Corporation
8. Clariant AG
9. DuPont de Nemours Inc.
10. Eastman Chemical Company
11. Ecolab Inc.
12. Evonik Industries AG
13. Fuchs Petrolub SE
14. Halliburton Energy Services Inc.
15. Infineum International Limited
16. International Lubricants Inc.
17. Kansai Paint Co. Ltd
18. Lanxess AG
19. Lucas Oil Products Inc.
20. Nippon Paint Holdings Co. Ltd.
21. Phillips 66 Company
22. PPG Industries Inc.
23. Schaeffer Manufacturing Company
24. Solvay S.A.
25. STP by Energizer Holdings Inc.
26. The Lubrizol Corporation
27. The Sherwin-Williams Company
28. VP Racing Fuels Inc.