SK Lubricants Co. Ltd. (SK Inc.)
GS Caltex Corporation
S-OIL CORPORATION
Kl?ber Lubrication
Panolin AG
Idemitsu Kosan Co. Ltd.
Exxon Mobil Corporation
Repsol SA
ENEOS Corporation (ENEOS Holdings Inc.)
The Lubrizol Corporation
Petroliam Nasional Berhad (PETRONAS)
Shell plc
TotalEnergies SE
Valvoline Inc.
FUCHS