Thailand’s Data Centre Boom: Navigating the New Rules of Entry

By Ong Shi Man

In the first quarter of 2026, data centres accounted for the overwhelming majority of investment applications, exceeding 1 trillion baht. In 2025, the digital sector received the largest share of Board of Investment (BOI) applications, worth around THB 746 billion. Data centre projects accounted for most of these applications. The figure for data centre applications surged sevenfold, from THB 99 billion in 2024 to THB 728 billion in 2025.

This rapid increase reflects a wider Southeast Asian race for AI infrastructure. Governments across the region want to attract major data centre investments. Thailand has emerged as a serious contender with its strategic location and investment incentives supporting this ambition. However, Thailand’s policy landscape is changing quickly. Incentives are being restructured, resource constraints are sharpening, and the rules of entry are tightening.

Understanding the landscape matters now, before the window for the most advantageous positioning closes.

A Government Pushing for Scale

Driven by the massive surge in investment applications, the Thai government is aggressively modernising its regulatory framework. They plan to transition from a manufacturing base to a regional AI hub.

Thailand’s data centre industry generated THB 74.8 billion (USD 2.15 billion) in revenue in 2023. The market is projected to grow by 7.5% to 8.5% annually between 2025 and 2027. The government also wants to unlock stalled data centre projects. Through its FastPass programme, it aims to accelerate digital infrastructure and smart grid development.

The BOI’s June 2026 Royal Gazette amendments, effective for applications from 5 June 2026, restructure incentives into two categories. High-efficiency facilities must meet a Power Usage Effectiveness (PUE) of 1.3 or below. These projects qualify for an eight-year corporate income tax exemption outside the EEC. Other data centre projects receive a five-year tax exemption.

Projects within the Eastern Economic Corridor (EEC) receive shorter base incentive periods. This is because EEC already offers additional area-based investment benefits. This is a deliberate signal to diversify investment beyond the Eastern Corridor. The new rules also introduce a key market-entry requirement. Applicants must obtain written power supply confirmation from the Energy Regulatory Commission before submitting a BOI application.

Green Transition and Energy Constraints

Thailand’s commitment to carbon neutrality by 2050 and net-zero by 2065 remains a key policy driver. The government is exploring new pathways, including hydrogen-ready power plants, nuclear energy, and Carbon Capture and Storage.

The 2024 approved pilot scheme for Direct Power Purchase Agreements (targeting 2,000 MW) allows data centres to bypass the state monopoly and contract directly with green generators, provided they meet a 50 MW load threshold. However, tighter criteria have been introduced to manage capacity saturation: participants must now post a bank guarantee of 4.5 million baht per megawatt of reserved capacity, refundable in stages as utilisation targets are met.

In July 2026, the National Energy Policy Council approved the principle of a dedicated electricity tariff for data centres, with an initial rate of five to six baht per kilowatt-hour under consideration, roughly 40 to 50% above the general commercial rate of 3.95 baht. The rationale is to recover the cost of grid expansion without burdening ordinary consumers. The final tariff has not been set, but investors modelling long-term operational costs must treat this as a live variable.

Digital Economy Growth and AI Adoption

The growth of digital payments and e-commerce is accelerating demand for data infrastructure. Digital payment transactions are projected to increase from THB 4.9 trillion in 2024 to THB 8.7 trillion by 2030, reinforcing the need for secure and scalable data processing systems.

Artificial intelligence is emerging as a major demand driver. Approximately 17.8% of Thai organisations already use AI, with over 73% planning future adoption, increasing demand for high-performance computing infrastructure. AI will fundamentally change facility design, with rack densities approaching 100 kW and liquid cooling becoming a baseline requirement.

Challenges: Resource Constraints and Rising Compliance Costs

Rapid growth has sparked significant pushback in the Eastern Economic Corridor. A single hyperscale facility can consume 3.3 million cubic metres of water annually. This is equivalent to the consumption of 36,900 residents. This creates a “zero-sum” conflict in the EEC, where actual water demand already exceeds 650 million cubic metres and is projected to reach 1 billion cubic metres by 2036.

In Rayong’s Ban Chang district, water facilities produce 151,200 cubic metres daily. However, local consumption reaches 120,000 cubic metres per day. The district’s daily buffer is just over 30,000 cubic metres. The two data centre projects already committed to the area are projected to consume between 19,600 and 28,600 cubic metres per day. Thus leaving little room for further growth or climate variations.

The National Broadcasting and Telecommunications Commission (NBTC) plans to upgrade data centre licences from Type 1 to Type 3. Type 3 licences apply to telecommunications network providers. The change would impose stricter infrastructure standards and more detailed operator checks. It responds partly to concerns over the misuse of data centre capacity by illicit capital networks. For new entrants, this means a more complex licensing process and higher compliance requirements from the outset.

Strategic Recommendations for 2026

The BOI has transitioned to a targeted, merit-based system. Under the new Thailand Benefit Enhancement Plan, investors must now meet rigorous performance criteria. This includes workforce localisation targets, knowledge-sharing obligations, and local supply chain commitments.

1. Stack Incentives via Ecosystem Development, But Account for Location

Investors should maximise competitive advantage by combining core incentives for data centres (Activity 8.2.1.1 for high-efficiency facilities) with investments in renewable energy production (Activity 4.1.2 or 7.1.1) to unlock better tax benefits. However, the June 2026 amendments give EEC-based projects shorter base incentive periods. Projects elsewhere receive longer periods. Investors should model both scenarios before committing to a site.

2. Treat Community Engagement as a Compliance Requirement

Given the sensitivity surrounding water and infrastructure in the EEC, and the BOI’s explicit linkage of tax holidays to Workforce Development, community collaboration is no longer optional, but a prerequisite to unlock Corporate Income Tax Benefits. Projects that demonstrate active partnerships with local educational institutions for STEM training, or that support Thai SME participation in the technology supply chain, are better positioned to meet the new tangible national benefits criteria and secure long-term stakeholder support

3. Prioritise Operational Efficiency to Future-Proof Against Rising Costs

Investors should target a Water Usage Effectiveness (WUE) below 0.5 L/kWh and integrate closed-loop cooling systems to decouple digital growth from regional water stress. With a dedicated electricity tariff of five to six baht per kilowatt-hour under active consideration, efficiency is no longer a reputational choice; it is a direct hedge against a rising cost base. Beyond the BOI’s 1.3 PUE requirement, firms should aim for higher efficiency standards to future-proof operations against grid capacity constraints.

Conclusion

Thailand offers strong growth potential for data centres, but the investment case has grown more complex. The most advantageous incentive windows now require early regulatory engagement, including ERC power confirmation before BOI application and a commitment to operational standards and local partnerships that go beyond the build-and-operate model. Developers that align with Thailand’s energy transition and digital development goals, and that engage proactively with the evolving regulatory framework, will be best positioned to capture what remains a significant opportunity.