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SUSTAINABLE AND GREEN FINANCE
About Us
The Sustainable and Green Finance Institute (SGFIN) is a research institute established by the National University of Singapore (NUS). SGFIN provides deep research capabilities in sustainable and green finance with the focal point on Asia and contributes thought leadership to shape sustainability outcomes in policymaking across the financial sector and the economy at large.
Supported by exceptional domain experts across NUS, SGFIN equips businesses with critical knowledge across disciplines to better quantify the environmental and social impacts of their business developments, operations, products, and services. SGFIN also provides education, training, and toolkits to integrate sustainability dynamics into their business strategies and investment decisions. In essence, SGFIN facilitates companies and institutions in embedding sustainability as a core pillar in their business decisions.
Recent News & Publications
On the Road to Carbon Market Integrity: Article 6.4’s Higher Standard and the Risk of Fragmentation
Desmond Tay | Michael Alexander | Johan Sulaeman
With the continued challenges facing the voluntary carbon market, it is becoming an even more uphill task to meet global climate targets. At COP29, countries agreed to operationalize standards for a centralised carbon market based on the Article 6.4 mechanism of the Paris Agreement. This development has the potential to promote greater standardisation in the generation and transfer of carbon credits, providing safeguards to ensure that carbon credits meet higher quality standards. Building on SGFIN’s previous methodology for assessing the robustness of carbon crediting frameworks in promoting high-quality carbon credits, this whitepaper evaluates the strengths and weaknesses of the documents that form the foundation of the Article 6.4 mechanism framework. It finds that recent developments in the UNFCCC-led framework represent significant steps toward greater carbon market integrity, but also highlight a key implementation risk: if the rules are perceived as too stringent or costly to adopt, buyers and project developers may continue to rely on alternative standards, potentially contributing to market fragmentation and confusion.
Read the PaperIndonesia’s Blue Bonds: Diving into New Waters
Sovereign blue bonds are often framed as innovation, but the challenge lies in how they are structured and brought to market. This teaching case examines Indonesia’s blue bond issuance through the lens of market entry, instrument design, and alignment with broader financing strategies. Set against rising ocean-related risks and growing investor focus on sustainable finance, the case highlights how design choices interact with debt management and fiscal frameworks. It offers a practical lens for understanding how sovereign decisions translate into market signals, with implications for pricing, risk assessment, and credibility. The case supports discussion on the trade-offs underlying sustainable sovereign financing.
Exploring the potential and opportunities of sustainable business
Sustainable business opportunities are growing in Indonesia as consumer awareness and demand for environmentally responsible products continue to increase. In the article, Associate Professor Zhang Weina (Department of Finance) shared how sustainability is no longer a niche area but a core business competency, as companies increasingly seek leaders who can integrate financial, environmental and social considerations into decision making. She noted that enrolment in sustainability-related courses at NUS Business School has more than doubled, reflecting rising demand for green skills, and highlighted that programmes are designed to equip students with the analytical, strategic and practical capabilities needed to lead sustainable business transformation.
Demand for Green Skills Is Rising — Explore the Job Prospects
Demand for green skills is rising as sustainability becomes a core business priority. In a virtual media roundtable, Associate Professor Zhang Weina (Department of Finance) said companies are increasingly seeking leaders who can integrate financial, environmental and social considerations, making sustainability a critical competency rather than a niche skill. She noted that enrolment in sustainability-related courses at NUS Business School has more than doubled, reflecting growing demand, and added that programmes are designed to equip students with the analytical, strategic and practical skills needed to lead the transition.
War-driven oil shocks expose aviation’s decarbonisation challenge
Professor Johan Sulaeman highlights the potential of geological carbon credits (GCCs) as a critical enabler of aviation’s decarbonisation pathway. As a hard-to-abate sector, aviation will continue to face persistent residual emissions, even as sustainable aviation fuel (SAF) scales over time. GCCs offer a high-integrity solution to neutralise these emissions through permanent carbon storage, aligning with the long atmospheric lifetime of aviation-related CO₂ and thereby addressing a structural gap that cannot be eliminated through technological and fuel substitution alone. With significant geological storage potential in Southeast Asia, and strong market infrastructure, Singapore is well positioned to anchor regional carbon market development and integrate GCCs into a credible, long-term decarbonisation strategy.
The Complex Trade-Offs Involved in Natural Resource Governance
Natural resource governance often involves complex trade-offs between regulation, enforcement, and long-term development goals. A recent op-ed by Professor Johan Sulaeman in The Jakarta Post reflects on a case where mining permits were revoked while operations continued, highlighting the challenges that can arise between policy decisions and their implementation on the ground. The article illustrates how the transition from regulatory decisions to operational outcomes can be complex, particularly in the mining industry, where projects involve long investment cycles, multiple stakeholders, and significant economic and environmental implications. Addressing these challenges requires not only well-designed policies, but also consistent implementation, transparent processes, and clear communication among regulators, companies, and local communities. As environmental considerations, economic development, and financial risks become increasingly interconnected, strengthening governance and accountability will remain essential for supporting responsible and sustainable resource management.
The $1B Question: Why Singapore’s Carbon Tax Revenues Fall Short of Expectations
Singapore’s carbon tax debate is less about missed forecasts and more about design realities. As highlighted by Professor Johan Sulaeman, the oft-cited S$1 billion revenue was never official, raising a more important question: why are actual projections structurally lower? Transitional allowances and the use of international carbon credits are softening the effective carbon price, particularly for emissions-intensive, trade-exposed sectors. While this cushions competitiveness, it also dilutes near-term impact. For carbon pricing to drive meaningful transition, these allowances must be progressively tightened in both scope and quality. Otherwise, persistently low effective prices risk weakening incentives for decarbonisation and delaying Singapore’s broader climate ambitions.
Why airlines are paying more for cleaner fuel — and who foots the bill
Associate Professor Zhang Weina (Department of Finance, Deputy Director of SGFIN) shared her insights in this interview by CNBC on sustainable aviation fuel (SAF). She explained that while SAF mandates set demand and SAF levies focus on costs. She noted that the mandates will push up the SAF prices in the short run due to the limited supply of SAF. The mandates alone are insufficient to boost supply. Greater policy support, such as de-risking projects and tax incentives, is needed to attract producers and expand capacity. Over time, increased supply could help ease price pressures.
Climate risk is increasingly a cross-border financial risk
Research presented at the SGFIN Summit 2026 and recently featured in The Business Times highlights how banks operating in Indonesia, including Singapore banks and other regional banks, could face a higher loss intensity from climate-related exposures in Indonesian loan portfolios, particularly in fossil-intensive sectors. The findings underscore the growing importance of granular data and forward-looking risk assessment in managing cross-border climate exposures. As financial systems in Southeast Asia become increasingly interconnected, strengthening climate risk analytics will be critical for safeguarding financial stability and supporting more resilient and sustainable capital allocation.
SGFIN Whitepaper | BT Article | SGFIN LinkedIn | Summit Panel 1 LinkedIn
Markets are Pricing Climate Risk
Indonesia’s recent US$80B market volatility is a wake‑up call: climate and nature risks are now financial risks. As highlighted in Professor Johan Sulaeman’s new Op‑Ed, “Market volatility highlights Indonesia’s overlooked climate and resource risks”, SGFIN research shows that physical climate hazards and fossil‑intensive exposures can sharply amplify credit losses, making environmental resilience a core pillar of financial stability. Recent developments in Indonesia’s resource sector further reveal how environmental governance shapes investor confidence. The path forward is clear: embed climate and natural‑capital risks into supervision, disclosure, and investment to build stronger, more resilient markets in Indonesia and beyond.
Research & Insights
Explore SGFIN's thought leadership, research publications, case studies and practical toolkits supporting sustainable finance and policy decision-making.
Upcoming Events

Carbon Accounting for Enterprises
4 Jun 26 - 5 Jun 26
9:00 AM - 5:30 PM
Dr Sa-Pyung Sean Shin
Education Resource Centre, NUS

Sustainability Reporting and Governance
18 Jun 26 - 19 Jun 26
9:00 AM - 5:30 PM
Dr Sa-Pyung Sean Shin, Professor Mak Yuen Teen
Education Resource Centre, NUS

Sustainable Project Financing
16 Nov 26 - 17 Nov 26
9:00 AM - 5:30 PM
Associate Professor Ruth Tan, Associate Professor Zhang Weina
Education Resource Centre, NUS
