
BANGKOK — The Stock Exchange of Thailand (SET) expects more than half of its listed companies to disclose their carbon footprint data this year, marking a significant step toward environmental transparency in Thai business sector.
Mr. Soraphol Tulayasathien, SET’s Deputy Managing Director, revealed that following the Securities and Exchange Commission’s (SEC) requirement for listed companies to disclose greenhouse gas emissions data under the Form 56-1 One Report, there has been notable progress in corporate environmental reporting.
Currently, about 267 companies, representing 30% of the total 860 listed companies, have already verified and disclosed their carbon footprint data. This shows improvement from last year’s 20% disclosure rate. The initiative aligns with Thailand’s upcoming Climate Change Act, expected to take effect in 2027, which will mandate responsibility from high-emission businesses and industries.

To facilitate this transition, SET launched the “SET Carbon” system in January, providing companies with an efficient tool for calculating organizational carbon footprints. According to Tulayasathien, 170-180 companies have already expressed interest in using the system, with SET projecting that over 445 companies (50% of listed companies) will disclose their carbon footprint data by year-end.
“Greenhouse gas emissions disclosure is a crucial mechanism for enhancing Thai businesses’ global competitiveness in an increasingly environmentally conscious market,” Tulayasathien emphasized.
Adding to Thailand’s environmental leadership, Ms. Anothai Sangthong, Director of Communication and Carbon Credit Registry at Thailand Greenhouse Gas Management Organization (TGO), highlighted that Thailand is the only ASEAN nation with a national carbon credit certification standard (T-VER). Developed by TGO, this standard provides credible certification for greenhouse gas reduction projects, following international protocols for verification and assessment.
The T-VER standard’s credibility is reinforced by TGO’s status as a government organization, ensuring that carbon credits certified under this system meet global standards. This positions Thailand as a regional leader in environmental certification and verification systems.
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