1. American Manufacturing Corporation
2. Amsoil Inc.
3. Ashland Global Holdings Inc.
4. British Petroleum PLC
5. Chevron Corporation
6. China Petrochemical Corporation
7. Coolants Plus Inc.
8. Cummins Inc.
9. Exxon Mobil Corporation
10. Gars Lubricants
11. Houghton Chemical Corporation
12. LUKOIL
13. MOTUL S.A.
14. Old World Industries
LLC
15. Petroliam Nasional Berhad
16. Prestone Products Corporation
17. Recochem Inc.
18. Royal Dutch Shell PLC
19. Sinclair Oil Corporation
20. Solvents & Petroleum Service Inc.
21. SONAX GmbH
22. Star Cool Enterprise
23. TotalEnergies SE
24. Valvoline Inc.
25. VOLTRONIC GmbH