Understanding Sustainability Bonds and Their Market Role

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What are Sustainability Bonds

Sustainability bonds are unique financial instruments where issuers use all raised funds to finance or re-finance a strategic combination of both green and social projects.
Unlike regular bonds, these instruments create a dual impact by helping issuers tackle multiple Sustainable Development Goals (SDGs) at the same time.
For example, a single bond can fund green projects like renewable energy alongside social projects like affordable housing or healthcare.

The International Capital Market Association (ICMA) formally recognized these bonds in 2018.
They now form an essential part of the broader Green, Social, Sustainability, and Sustainability-Linked (GSS+) Bond Market.
In India, the Securities and Exchange Board of India (SEBI) strictly regulates these financial instruments to ensure proper governance.
SEBI requires a clear use-of-proceeds statement, mandatory third-party verification, and continuous reporting on how funds are allocated.

Sustainability bonds are specific use-of-proceeds instruments that must be tied directly to designated projects.
On the other hand, sustainability-linked bonds fund general corporate operations based on meeting overall company Key Performance Indicators (KPIs).
Green bonds focus exclusively on environmental benefits, while social bonds target vulnerable or underserved populations.