Egco plans to import 250,000 tonnes of LNG per year to feed its Banpong power plant in Ratchaburi and Klongluang plant in Pathum Thani.
The shipment will also be used to fuel its Egco Cogen power plant in Rayong.
He added that the company was closely monitoring LNG markets to identify the right time to import the gas.
Five companies already hold LNG import and trade licences: PTT, the Electricity Generating Authority of Thailand, Gulf Energy Development, B Grimm LNG, and Hin Kong Power Holding (HKH), in which Gulf Energy Development holds a 49-per-cent stake.