Singapore Green Bond

Singapore Green Bond: What Investors Need to Know

Singapore green bonds are fixed-income securities whose proceeds are earmarked exclusively for environmentally sustainable projects — from solar farms and green-certified buildings to low-carbon public transport. The Singapore government began issuing sovereign green bonds under its S$35 billion Sustainability Bond Framework, with the Monetary Authority of Singapore (MAS) overseeing standards. This is not financial advice.

What Makes a Bond “Green”?

A green bond follows the same mechanics as a conventional bond — the issuer borrows money and pays periodic coupon interest until maturity. The difference is use-of-proceeds: funds raised must be directed to pre-specified green or sustainable projects, and issuers must publish annual allocation and impact reports.

In Singapore, green bonds must align with the MAS Sustainability Bond Framework, which references the ICMA Green Bond Principles and the ASEAN Green Bond Standards.

Singapore Government Green Bonds (SGS Green Bonds)

The Singapore Government began issuing SGS (Sustainability) bonds in 2022 as part of its S$35 billion green bond programme. Proceeds fund eligible green and sustainability expenditures under the Singapore Green Plan 2030, including:

  • Green buildings and infrastructure
  • Clean and renewable energy
  • Sustainable water and waste management
  • Low-carbon and zero-emission transport (e.g., electrification of the bus fleet, MRT expansion)

Sovereign SGS green bonds are rated AAA (equivalent to Singapore’s sovereign rating) and are available to institutional investors. Retail investors can access Singapore Government Securities (including green SGS) via the SGS bond market through banks and MAS’s primary dealer network.

Corporate Green Bonds in Singapore

Beyond sovereign issuance, Singapore’s corporate green bond market has grown rapidly. Key issuers include:

  • S-REITs: Several S-REITs (e.g., CapitaLand Integrated Commercial Trust, Keppel REIT) have issued green bonds to refinance green-certified properties
  • GLCs: Government-linked companies such as Temasek and JTC have issued green and sustainability-linked bonds
  • Banks: DBS, OCBC, and UOB have issued green bonds and sustainability bonds to fund green lending portfolios

How Retail Investors Can Access Green Bonds

Direct access to individual green bonds requires a CDP account and typically a minimum investment of S$250,000 (for corporate bonds) or S$1,000 (for SGS bonds via the MAS bond market). Retail-friendly alternatives include:

  • Green bond ETFs: Funds that hold diversified portfolios of green bonds (available on SGX and via brokerages)
  • ESG-screened bond funds: Unit trusts or robo-advisor portfolios with green/ESG bond allocations
  • Singapore Savings Bonds (SSB): Not technically green bonds, but a low-risk government-backed option for retail fixed income

Green Bond Yields vs Conventional Bonds

Green bonds from the same issuer often trade at a slight yield discount (the so-called “greenium”) compared to conventional bonds, as ESG-focused institutional demand drives prices up. As at Q1 2026, the greenium on Singapore sovereign green bonds is estimated at 2–5 basis points — a modest premium for investors prioritising sustainability.

ESG Investing and Green Bonds

Green bonds are a key instrument in ESG investing in Singapore. They offer fixed-income investors a way to generate predictable income while directing capital towards climate-positive projects. MAS’s Green and Sustainability-Linked Loan Grant Scheme (GSLS) also subsidises the cost of obtaining green bond certification for issuers, further growing Singapore’s green bond market.

Frequently Asked Questions

What is a Singapore green bond?
A Singapore green bond is a debt security where the proceeds are ringfenced for environmentally sustainable projects such as clean energy, green buildings, and low-carbon transport. The Singapore Government issues SGS green bonds under its S$35 billion Sustainability Bond Framework, aligned with MAS and ICMA Green Bond Principles.
Can retail investors buy Singapore green bonds?
Retail investors can access Singapore Government Securities (including green SGS bonds) via the MAS bond market with a minimum of S$1,000. For corporate green bonds, the minimum is typically S$250,000. Retail-friendly alternatives include green bond ETFs and ESG bond funds via robo-advisors.
What is the MAS Sustainability Bond Framework?
The MAS Sustainability Bond Framework is the regulatory standard governing how Singapore issuers classify and report green, social, or sustainability bonds. It aligns with ICMA Green Bond Principles and ASEAN Green Bond Standards, ensuring proceeds go to verified eligible projects.
Do green bonds offer lower yields than conventional bonds?
Yes, in most cases. Green bonds from the same issuer typically yield 2–10 basis points less than equivalent conventional bonds — this yield discount is called the greenium. Investors accept slightly lower returns in exchange for the environmental impact guarantee.
Which S-REITs have issued green bonds in Singapore?
Several S-REITs have issued green bonds, including CapitaLand Integrated Commercial Trust, Keppel REIT, and Mapletree REITs, typically to refinance green-certified buildings. The proceeds fund energy-efficient retrofits, water-saving systems, and other sustainability improvements to their property portfolios.