Thailand is on the verge of enacting its first comprehensive Climate Change Act, a sweeping legislative framework that for the first time binds public and private sectors to concrete climate-action measures.

The draft law was submitted to the Cabinet on November 25, 2025, and if approved will overhaul how the country regulates emissions, supports adaptation and mobilises finance for sustainable development.

Foremost among the Act’s provisions is a new national “Climate Fund”.

The Fund is designed to finance adaptation projects, climate-resilient infrastructure, and green investments across sectors including energy, water management, agriculture and public health.

Initial state funding will be supplemented over time through revenues generated by carbon pricing tools.

The draft law mandates greenhouse-gas reporting for more than 4,000 companies across energy-intensive, industrial, transport and waste sectors — the first time Thailand will require nationwide emissions disclosure.

This data will feed into enforcement mechanisms, including a proposed Emissions Trading System (ETS) and a carbon tax.

The ETS is expected to cap emissions and allow companies to trade allowances, while the carbon tax will price GHG emissions for firms and importers to encourage reductions and discourage carbon-intensive operations.

In recognition of global trade pressures and evolving regulatory standards abroad, the Act also incorporates a Carbon Border Adjustment Mechanism (CBAM).

Under this mechanism, imported goods — especially carbon-heavy products — will face adjustment charges unless their supply chains comply with emissions standards, helping Thai exporters and domestic firms align with international carbon-cost regimes.

Adaptation and resilience feature strongly: the law requires a national and sectoral master plan, to be updated periodically, targeting climate-sensitive sectors such as agriculture, water management, tourism, natural-resource management and public health.

The Act seeks to strengthen Thailand’s capacity to respond to extreme weather events, floods, droughts and other climate impacts that in recent years have caused costly damage to infrastructure, livelihoods and communities.

For business and finance, the Act represents both an obligation and an opportunity.

Firms will need to adapt operations, incorporate emissions accounting and possibly invest in cleaner technologies — but they will also have access to low-interest financing, grants, or carbon-credit incentives tied to the Climate Fund.

Legal experts note that while compliance brings costs, early adaptation could position Thai firms to remain competitive under evolving trade and regulatory environments.

The legislation frames climate action not as a constraint, but as a strategic investment in Thailand’s long-term economic competitiveness, environmental sustainability and social resilience.

If adopted, the Climate Change Act will mark a major pivot — embedding climate responsibility into law and giving Thailand the institutional tools to meet its net-zero and adaptation goals.

As of now, the draft law awaits final Cabinet approval before being forwarded to parliament for debate, public hearings and eventual ratification.

The government indicates it aims for full implementation within the next one to three years.