Sustainability is reshaping global finance, tremendously. Over the past, sustainable bonds have become a defining feature of responsible investment, bridging the gap between capital markets and long-term environmental and social goals. Now, as Sri Lanka prepares to deepen its green finance ecosystem, the conversation around sustainable debt instruments is moving from policy to practice.

Unlike traditional bonds that raise funds for general corporate or government purposes, sustainable bonds are designed to channel capital toward projects that deliver measurable positive social or environmental benefits. Green, social, and sustainability bonds fall within this rapidly expanding asset class, guided by frameworks such as the International Capital Market Association (ICMA) Sustainability Guidelines and aligned with the United Nations Sustainable Development Goals (UN SDGs). Globally, such issuances surpassed US$ 1.1 trillion in cumulative value by 2024, according to the World Bank, and this indicates investor appetite for instruments that merge profit with purpose.

In essence, a sustainable bond allows issuers to raise funds for new and existing projects that advance both environmental and social outcomes, from green projects in sectors such as renewable energy, energy-efficient construction, waste management and clean transportation to financial inclusion, women empowerment, MSME development, and access to essential services such as healthcare, and education. Green bonds, social bonds and sustainability bonds constitute the three main sustainable bond types where green and social bonds aim to raise capital to fund projects with environmental or social benefits respectively, while sustainability bonds finance projects with both positive social and environmental outcomes. What differentiates these instruments from standard corporate or government bonds is their strict requirement for transparency, use-of-proceeds monitoring, and impact reporting. Investors are purchasing returns and also accountability, often verified by independent evaluators.

In Sri Lanka, the regulatory sector is gradually aligning with these international norms. With the approval of the Securities and Exchange Commission of Sri Lanka (SEC), the Colombo Stock Exchange (CSE) introduced frameworks to facilitate green and sustainable finance, building on the Sustainable Finance Roadmap developed by the Central Bank of Sri Lanka (CBSL) in collaboration with the International Finance Corporation (IFC) in 2019. That roadmap called on financial institutions to integrate environmental, social, and governance (ESG) considerations into credit and investment decisions while encouraging the creation of sustainable financial products.

Recognising the crucial role of finance in addressing environmental and social challenges, CSE introduced the ‘GSS+ Bonds’ Regulatory Framework in March 2025 to facilitate listing of green, social, sustainability and other related bond types. This initiative, developed in collaboration with the Asian Development Bank and the SEC, modernizes the previous listing rules, replacing the term “Sustainability Bonds” with an inclusive “GSS+ Bonds” category.

Today, the country’s capital market is better prepared than ever to host such instruments. The CSE’s debt securities board has seen growing investor interest in listed debentures, with several issuances in recent years attracting strong oversubscription. Although most have been conventional or Basel III-compliant debt instruments, the momentum hints at a wider shift. As ESG principles gain traction among institutional and high-net-worth investors, the market is beginning to recognize sustainable bonds as both a credible and necessary evolution.

In fact, recent debt IPOs on the CSE have shown that investors are increasingly seeking more than yield. They are seeking alignment with values. The oversubscription of multiple corporate bond issuances in the recent past, despite economic uncertainty, reflected a steady rebound in investor confidence. Analysts note that the next frontier for the domestic bond market will be sustainability-themed instruments, which can attract international participation and diversify Sri Lanka’s funding base while supporting the country’s environmental and social commitments.

Against this backdrop, Bank of Ceylon (BOC) has been strengthening the foundations for what could become a transformative chapter in its history. The Bank’s approach to sustainability is not limited to philanthropy or compliance. It is built on a structured 3P framework, People, Planet, and Profit, which guides every aspect of its strategic and operational decision-making.

Sustainability is the cornerstone of long-term resilience and national value creation of BOC. The Bank’s efforts include a comprehensive Environmental and Social Management System (ESMS) that screens lending activities for environmental and social impacts, ensuring compliance with the National Environmental Act No. 47 of 1980 and other local regulations. BOC has also aligned its strategy with the UN Sustainable Development Goals (SDGs), committing to embed ESG principles across its value chain.

This commitment is evident in tangible results, showcased in the Bank’s recognition by the Green Building Council of Sri Lanka, which presented BOC with the Green Business Leadership Award 2024 and the Green Commitment Excellence Award 2024 for its sustainable practices and environmental stewardship. The Bank’s own operational footprint is under transformation as well and it continues to pursue its target of becoming a carbon-neutral entity.

At the governance level, the Board of Directors provides oversight through a dedicated Sustainability Committee, ensuring that sustainability considerations are integrated into policy and performance targets. This structure allows the Bank to balance its commercial goals with its social and environmental mandate, an alignment increasingly demanded by regulators, investors, and international partners alike.

To meet the next stage of market evolution, BOC’s Investment Banking Division has been positioned as a bridge between the Bank’s core banking operations and the capital market. It liaises with the Bank’s sustainability division, lending divisions that serve corporate clients and retail segments and the ESMS unit to deliver customized financial solutions that align with emerging ESG standards. Leveraging its longstanding relationships and institutional credibility, the division is prepared to facilitate new types of financial instruments, linking purpose-driven investors with meaningful domestic projects.

The potential for sustainability bonds in Sri Lanka also aligns with national economic priorities. As the country rebuilds confidence after a challenging economic cycle, sustainable finance offers a pathway to attract concessional capital, strengthen fiscal discipline, and support green growth. The Central Bank’s Sustainable Finance Roadmap 2025 highlights the need for innovative financing to achieve low-carbon and inclusive development, while the Ministry of Finance’s ongoing work on a national climate finance strategy is expected to facilitate the financing of sustainable development initiatives and building resilience to climate challenges in the country.

For issuers, these developments create both opportunity and responsibility. The transparency requirements for sustainability bonds mean that borrowers must demonstrate measurable outcomes and continuous reporting. For institutions like Bank of Ceylon, which already operates under strong governance and disclosure practices, this regulatory rigor aligns well with existing frameworks. Its planned ESG Road Map, set to achieve compliance with IFRS S1 and S2 sustainability standards by 2025, portrays its readiness for the level of accountability that sustainable finance demands.

The emergence of sustainability bonds therefore represents a deeper evolution in how finance is understood and practiced. It challenges institutions to look beyond quarterly returns and toward the social contract embedded in their role as capital intermediaries. For Bank of Ceylon, this evolution is a natural extension of its national mission and decades-long legacy as Sri Lanka’s leading state-owned commercial bank.

As sustainable investments expand globally, the question is not whether Sri Lanka will follow, but how effectively it can position itself within this shift. The regulatory groundwork is being laid, investor sentiment is turning, and financial institutions are aligning their strategies with new expectations. In that sense, BOC’s steady build-up of sustainability frameworks, reinforced by external assurance and a strong internal audit function, together with its integrated investment banking capability, are precursors to what could become a landmark move in Sri Lanka’s financial market.

Bank of Ceylon’s enduring strength, security, and stability as the Banker to the Nation remain unmatched, with total assets exceeding Rs. five trillion. The Bank’s Investment Banking Division offers a comprehensive suite of services that extend beyond traditional banking, including financial advisory for listed and unlisted debt issues such as debentures, perpetual bonds, green, social, and sustainability bonds, as well as securitizations, corporate restructuring, and private equity transactions.

Over the years, the Investment Banking Division has raised more than Rs. 100 billion through listed and unlisted debt instruments for the Bank. In 2024, it successfully raised Rs. 15 billion through a Basel III debenture issue and is now preparing to offer sustainability bonds, reinforcing its commitment to sustainable financing. The Bank has also received in-principle approval from the Securities and Exchange Commission of Sri Lanka (SEC) to function as a Corporate Finance Advisor. The Division also provides underwriting services for initial public offerings (IPOs) and supports financing for large infrastructure and development projects.

Bank of Ceylon is a Professional Clearing Member of the Colombo Stock Exchange (CSE) and provides trustee and custodian services for unit trust funds and corporate clients, with funds exceeding Rs. 500 billion.

In addition, the Division operates a dedicated business unit for wealth management clients under the SEC’s Investment Manager license.

For more information:

Investment Banking: Chandima – 011 244 8348 / 076 781 3312

Wealth Management: Roshini – 011 244 0081 / 074 275 4931