Thailand Green Bond & Sustainable Finance 2027 Market Intelligence
Thai labeled sustainable bonds ~USD 34B outstanding (end-2025), ~THB 888B cumulative since 2019. PDMO sovereign SLB anchors the curve; SCB, KBank, BBL, CPN, Indorama, EGAT lead the corporate side. Taxonomy Phase 2, Thai ESGX, 2027 Climate Change Act reshape demand into 2026-2027.
Key takeaways
- 1
Thai labeled sustainable bond market stock ~ at end-2025 (Climate Bonds Initiative, World Bank); cumulative issued since 2019, with sustainability bonds making up ~ of the cumulative label stack.
- 2
Public Debt Management Office (PDMO) is the dominant issuer cohort: Thailand printed Asia's first sovereign sustainability-linked bond (, 2024) and a follow-on programme in 2025, with H1 2025 ESG issuance of of which was government.
- 3
Thailand Taxonomy Phase 2 (Bank of Thailand, 27 May 2025) extends classification to agriculture, construction, real estate, manufacturing, waste; combined with Phase 1 it covers ~ of national emissions and forms the eligibility backbone for green bond use-of-proceeds.
- 4
Thai ESGX tax-incentivised fund channel (SEC, MoF, AIMC, SET, May 2025) raised against a target across 37 funds from 19 asset managers, creating a structural local-demand anchor for ESG-labelled paper and SET ESG-rated equities.
- 5
Our 2027 thesis: Climate Change Act (cabinet-approved Dec 2025, enforcement 2027) adds carbon tax (/tonne), ETS, and CBAM-style border adjustment. Combined with Article 6.2/6.4 ITMO bilateral pipeline and NDC 3.0 net-zero acceleration to 2050, this drives a step-change in transition-bond and SLB supply over 2026-2027.
Executive summary
Thailand's labeled sustainable bond market expanded by year-on-year to a stock of roughly by end-2025 (Climate Bonds Initiative, World Bank Treasury), up from growth a year earlier and a cumulative of issuance since the first labelled deal in 2019. Outstanding ESG bonds now represent about of the total Thai bond market, of which approximately are sustainability bonds, sustainability-linked, green, social, and early-stage transition. The Public Debt Management Office (PDMO) anchored the curve in 2024 with Asia's first sovereign sustainability-linked bond (, third globally after Chile and Uruguay) and announced a follow-on sovereign SLB programme through 2025.[, , , ]
Issuer concentration skews heavily toward sovereign and SOE flow. Of issued in the first five months of 2025, came from government, and only from private issuers. On the corporate side, EGAT printed Thailand's inaugural SOE sustainability-linked bond (2024), Indorama Ventures issued the largest Thai corporate SLB at in 2021, and IFC anchored a Central Pattana SLB in 2024 on retail-property green-building KPIs. Commercial banks (SCB with its 2025 sustainability bond framework, KBank with its sustainable finance commitment by 2030, BBL, and KTB) are positioning for the next wave of green and social-bond origination, with KBank specifically pledging net-zero in its financed portfolio.[, , , , , , ]
The 2026-2027 demand-supply equation is reshaped by three converging policy vectors. First, Thailand Taxonomy Phase 2 (Bank of Thailand, 27 May 2025) extends the green-eligibility framework to agriculture, construction, real estate, manufacturing, and waste β covering of national emissions when combined with Phase 1 (energy, transport). Second, the Thai ESGX tax-incentive fund channel launched in May 2025 by MoF, SEC, AIMC, and SET raised against an initial target across 37 funds from 19 asset managers, locking in five-year holding periods and creating a structural local-investor anchor that cross-links to the Asset Management report. Third, the Climate Change Act (cabinet-approved December 2025, enforcement targeted at 2027) introduces carbon tax ( per tonne), an ETS pilot from 2029, a CBAM-style import adjustment, and a regulated carbon-credit market β pulling transition finance and ITMO economics into the 2027 issuance pipeline.[, , , , ]
Thai ESG bond outstanding stock trend (THB billion cumulative, 2020-2025)
2020
Cumulative stock (THB B)
95
Share of bond market
0.6%
Context
Early sovereign sustainability bond ($1.45B inaugural, 2020)
2021
Cumulative stock (THB B)
220
Share of bond market
1.4%
Context
Indorama largest corporate SLB; supranational baht entry
2022
Cumulative stock (THB B)
299
Share of bond market
2.0%
Context
Programmatic sovereign issuance ramp
2023
2024
Cumulative stock (THB B)
690
Share of bond market
4.0%
Context
Asia-first sovereign SLB ($869.6M); EGAT inaugural SLB
2025
Cumulative stock (THB B)
888
Share of bond market
5.0%
Context
$3.77B follow-on sovereign SLB programme announced
| Year | Cumulative stock (THB B) | Share of bond market | Context |
|---|---|---|---|
| 2020 | 95 | 0.6% | Early sovereign sustainability bond ($1.45B inaugural, 2020) |
| 2021 | 220 | 1.4% | Indorama largest corporate SLB; supranational baht entry |
| 2022 | 299 | 2.0% | Programmatic sovereign issuance ramp |
| 2023 | 449 | 2.9% | Corporate diversification; Banpu, BGRIM, CPN pipelines |
| 2024 | 690 | 4.0% | Asia-first sovereign SLB ($869.6M); EGAT inaugural SLB |
| 2025 | 888 | 5.0% | $3.77B follow-on sovereign SLB programme announced |
Issuer cohort mix (% of cumulative labeled-bond stock, end-2025)
Sovereign (PDMO, MoF)
State-owned enterprise (EGAT, GHB, others)
Supranational baht (ADB, AIIB, IFC)
Share %
5%
Notes
Baht-denominated supranational issuance to deepen local curve
| Issuer cohort | Share % | Notes |
|---|---|---|
| Sovereign (PDMO, MoF) | 52% | Inaugural sustainability bond 2020; Asia-first SLB 2024; $3.77B follow-on 2025 |
| State-owned enterprise (EGAT, GHB, others) | 18% | EGAT inaugural SLB 2024; GHB social bond programme |
| Commercial bank (SCB, KBank, BBL, KTB) | 15% | SCB framework 2025; KBank net-zero pledge; KTB state-bank channel |
| Listed corporate (CPN, Indorama, Banpu, BGRIM, BCP) | 10% | IFC-anchored CPN SLB; Indorama PET recycling KPIs |
| Supranational baht (ADB, AIIB, IFC) | 5% | Baht-denominated supranational issuance to deepen local curve |
Instrument label split (% of cumulative labeled-bond stock, end-2025)
Sustainability bond
Share %
Notes
Combined green and social use-of-proceeds; dominant sovereign and bank label
Sustainability-linked bond (SLB)
Green bond
Share %
9%
Notes
Pure-play use-of-proceeds; renewables, green building
Social bond
Share %
5%
Notes
GHB affordable housing; pandemic-era issuance
Transition bond (early)
Share %
2%
Notes
Emerging label under Taxonomy Phase 2; coal-to-gas, hard-to-abate
| Instrument label | Share % | Notes |
|---|---|---|
| Sustainability bond | 70% | Combined green and social use-of-proceeds; dominant sovereign and bank label |
| Sustainability-linked bond (SLB) | 14% | KPI-linked coupon step-up; PDMO, EGAT, Indorama, CPN flagships |
| Green bond | 9% | Pure-play use-of-proceeds; renewables, green building |
| Social bond | 5% | GHB affordable housing; pandemic-era issuance |
| Transition bond (early) | 2% | Emerging label under Taxonomy Phase 2; coal-to-gas, hard-to-abate |
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