CIMB Thai Bank has issued a pointed call to the Thailand Board of Investment and government agencies: shift the focus of data center approvals from sheer volume to environmental quality, as the kingdom faces a surge in proposals that could strain national resources faster than the economy can absorb the benefits.
Why This Matters
• Resource pressure is real: Thailand has approved over 500 billion baht in data center projects in recent periods, with many concentrated in the Eastern Economic Corridor, raising concerns about water shortages and grid instability.
• New BOI standards are coming: The bank has urged stricter enforcement of Power Usage Effectiveness (PUE) thresholds and mandatory renewable energy roadmaps under the BoI's two-tier incentive framework.
• Long-term economic gain vs. short-term rush: According to CIMB Thai's position, quality investment creates workforce development and supply chain depth, while low-standard projects simply import equipment and extract resources.
The Push for Quality Over Quantity
CIMB Thai Bank, one of the kingdom's most active commercial lenders in the technology infrastructure space, has emerged as a prominent advocate for sustainability-focused data center investment criteria. The bank's position reflects growing unease within the financial and policy community about the pace of approvals and the potential for infrastructure bottlenecks.
The Thailand government has approved projects from global giants including Google ($1 billion commitment), Microsoft (over $1 billion for cloud and AI infrastructure), and Amazon Web Services ($5 billion over 15 years). TikTok System (Thailand) is also pursuing significant expansion plans. While these figures are impressive on paper, CIMB Thai warns that the economic multiplier depends heavily on how these facilities are designed, operated, and integrated into the local economy.
CIMB Thai has emphasized that the Board of Investment should prioritize projects that demonstrate clear commitments to power usage effectiveness, increased reliance on renewable energy, water recycling systems, waste heat recovery, and measurable reductions in lifecycle greenhouse gas emissions. These criteria, the bank argues, should be mandatory rather than optional for firms seeking the lucrative eight-year corporate income tax exemption available under the BoI's revised incentive structure.
What the Numbers Reveal
Thailand's data center market is projected to grow significantly over the coming years, with forecasts suggesting the sector's direct contribution to Thailand's GDP could climb substantially within five years, supported by estimated major capital inflows.
Yet the infrastructure required to support this expansion is daunting. Operational IT load is forecast to increase significantly by 2031, while Thailand's gross data center capacity is expected to expand substantially—representing a major compound annual growth rate. That translates to massive demands on the national electricity grid, which is already struggling to integrate renewable energy at scale, and on water resources, particularly in the EEC, where cooling systems for data centers can consume millions of liters daily.
Local communities in Rayong and Chonburi provinces have voiced concerns about intensified water shortages, noise pollution from cooling systems, and wastewater discharge. The Thailand Cabinet has approved the establishment of a national policy committee to oversee the data center industry, and the Industry Ministry is drafting landmark legislation to regulate energy consumption, water usage, and pollution standards—areas where Thailand currently lacks a specific legal framework.
The BOI's Two-Tier Framework and Its Gaps
Since July 1, 2025, the Board of Investment has categorized data center projects into two tiers:
High-efficiency data centers qualify for an eight-year CIT exemption capped at 100% of total project investment value, provided they meet strong PUE metrics (not exceeding 1.3), present a credible water usage efficiency plan, and demonstrate tangible benefits such as workforce training programs, joint curricula with Thai universities, R&D initiatives, or measures strengthening the domestic supply chain.
Other data centers receive a five-year CIT exemption, also capped at 100% of project value, but with less stringent efficiency requirements.
CIMB Thai's critique centers on enforcement and ambition. While the 1.3 PUE threshold is a step forward, Thailand's hot and humid climate pushes many facilities toward higher energy consumption for cooling than for computing. Without mandatory audits and penalties for underperformance, the bank warns, the framework risks becoming a paper exercise.
What This Means for Residents and Investors
For foreign and local investors, the message is clear: sustainability credentials are shifting from optional add-ons to core requirements. Firms planning data center projects in Thailand should prepare detailed plans for renewable energy procurement, ideally through direct contracting mechanisms with renewable energy providers that the government has introduced.
For residents, particularly those in the Eastern Economic Corridor provinces of Rayong, Chonburi, and Chachoengsao, the policy debate carries direct implications for water availability, electricity reliability, and environmental quality. The national policy committee is tasked with balancing investment promotion against energy security and environmental protection, but outcomes will depend on rigorous oversight and transparent reporting—areas where Thailand's regulatory consistency needs strengthening.
For workers and local businesses, the quality-over-quantity approach favored by CIMB Thai could translate into more meaningful economic benefits. High-efficiency projects are required to demonstrate commitments to workforce development, R&D, and supply chain localization, including training programs for Thai workers, collaboration with local universities, and support for domestic equipment manufacturers and service providers. Low-quality projects, by contrast, often rely on imported equipment and expatriate labor, leaving little footprint beyond resource consumption.
Regional Context and CIMB's Role
CIMB Group, the Malaysia-based regional banking group and parent company of CIMB Thai, has a track record of supporting investors in developing data center projects and related supply chains across Southeast Asia. CIMB Thai itself has committed to achieving net-zero greenhouse gas emissions, aligning with international climate commitments.
The bank has signaled its intent to influence sector standards through both lending criteria and policy advocacy, demonstrating commitment to sustainable and green data center projects across the region.
The Path Forward
Thailand's data center boom represents a pivotal moment for the kingdom's digital economy, with the potential to anchor the country as a regional hub for cloud computing, AI, and digital services. Yet the sector's trajectory will be determined not by the number of projects approved, but by the rigor of environmental standards enforced, the integration of renewable energy, and the degree to which economic benefits flow to local workers and suppliers.
CIMB Thai Bank's intervention is part of a broader push within the financial and policy community to ensure that Thailand's infrastructure expansion does not replicate the resource-intensive, low-sustainability models that have proven costly elsewhere in the region. Whether the Board of Investment and the incoming national policy committee heed that call will shape not only the data center sector, but also Thailand's credibility as a destination for responsible, long-term investment in the digital age.
