1. ADDINOL Lube Oil GmbH
2. BP PLC
3. Calumet Branded Products
LLC
4. Chevron Corporation
5. Croda International PLC
6. Engen Petroleum Ltd.
7. Eni S.p.A.
8. Exxonmobil Corporation
9. Fuchs Group
10. Idemitsu Kosan Co. Ltd.
11. Liqui Moly GmbH
12. Lubrication Technologies Inc.
13. Peak Lubricants Pty Ltd.
14. Penrite Oil Co. Pty. Ltd.
15. Petro-Canada Lubricants Inc.
16. PJSC Lukoil Oil Company
17. Rock Valley Oil and Chemical Co.
18. Shell PLC
19. Sinopec Limited
20. TotalEnergies SE