COMPANY LIMITED PROEN: PROEN CORP PUBLIC COMPANY LIMITED PSG: PSG CORPORATION PUBLIC COMPANY LIMITED PTC: PREMIER TANK CORPORATION PUBLIC COMPANY LIMITED PTTEP: PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY

SOPHON PUBLIC COMPANY LIMITED MAJOR: MAJOR CINEPLEX GROUP PUBLIC COMPANY LIMITED NEP: NEP REALTY AND INDUSTRY PUBLIC COMPANY LIMITED PTTEP: PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED SAUCE

: PTG ENERGY PUBLIC COMPANY LIMITED PTL: POLYPLEX (THAILAND) PUBLIC COMPANY LIMITED PTT: PTT PUBLIC COMPANY LIMITED PTTEP: PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED PTTGC: PTT GLOBAL CHEMICAL

LIMITED PTG: PTG ENERGY PUBLIC COMPANY LIMITED PTL: POLYPLEX (THAILAND) PUBLIC COMPANY LIMITED PTT: PTT PUBLIC COMPANY LIMITED PTTEP: PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LIMITED PTTGC: PTT GLOBAL