PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED

ELECTRICITY GENERATING AUTHORITY OF THAILAND

GLOBAL POWER SYNERGY PUBLIC COMPANY LIMITED

IRPC CLEAN POWER COMPANY LIMITED

ESSO (THAILAND) PUBLIC COMPANY LIMITED

OPERATIONAL ENERGY GROUP LIMITED

THAI AGRO ENERGY PUBLIC COMPANY LIMITED

THAI BIOGAS ENERGY COMPANY LIMITED

STAR PETROLEUM REFINING PUBLIC COMPANY LIMITED

PLASMA PURITY POWER COMPANY LIMITED

THAI MMA COMPANY LIMITED

RAYONG OLEFINS COMPANY LIMITED

METROPOLITAN ELECTRICITY AUTHORITY

PROVINCIAL ELECTRICITY AUTHORITY

TOYO THAI POWER MYANMAR COMPANY LIMITED

THAI OIL PUBLIC COMPANY LIMITED

SCG GROUP

PTT GROUP

PTTEP

DCAP

ETC