Leading Thai companies are preparing for a significant investment surge in 2026, with total planned expenditures approaching THB 500 billion across energy, power, and aviation sectors. The energy sector is set to receive the largest share, with over THB 327.2 billion allocated for various projects aimed at strengthening domestic energy security and expanding international oil and gas operations.
PTT Exploration and Production (PTTEP) is leading the investments with a commitment of approximately THB 253 billion, focusing on increasing oil production and exploration efforts. Meanwhile, Gulf Development plans to invest between THB 25–30 billion in renewable energy projects and new growth areas like data centers and AI, partly financed through debentures.
In the power sector, EGCO intends to spend THB 30 billion on expanding its natural gas and renewable energy assets in markets including the U.S., Indonesia, and the Philippines. Ratch Group is also investing THB 15 billion in greenfield projects and acquisitions, particularly in ASEAN countries, with an emphasis on data centers and manufacturing facilities.
In aviation infrastructure, Airports of Thailand (AOT) is executing a THB 79 billion expansion plan, which covers terminal improvements and new capacity in several key airports. Thai Airways is dedicating THB 10 billion toward a new MRO center at U-Tapao Airport, alongside fleet modernization through the acquisition of Airbus A321neo and Boeing 787 aircraft.
These investments demonstrate Thailand’s strategic focus on energy security, renewable energy, digital infrastructure, and aviation modernization, supporting the country’s economic growth and regional competitiveness.
