1. Afton Chemical by NewMarket Corporation
2. Amsoil Inc.
3. BASF SE
4. Chevron Corporation
5. Clariant AG
6. Dorf Ketal Chemicals (I) Pvt. Ltd.
7. ICL Group Ltd.
8. Infineum International Limited
9. Italmatch Chemicals S.P.A
10. Jinzhou Kangtai Lubricant Additives Co Ltd
11. King Industries Inc.
12. Lanxess AG
13. Lubrizol Corporation
14. Prasol Chemicals Pvt. Ltd.
15. Repsol Group