The Environmental Finance event in Singapore emphasised that Asia is ready and able to drive the next generation of innovation for sustainable debt markets, Ahren Lester writes
Reflecting on another successful edition of the Environmental Finance Sustainable Debt & Transition Finance Asia event in Singapore, I was struck by the ever-growing ambition of the region to carve out distinctive and impactful sustainable debt opportunities which speak not only to Asian markets but globally.
The session really shone a light on the confidence with which Asian markets are tackling the challenging sustainable financing themes including transition, climate adaptation, and nature – all themes that have core regional relevance, but also undeniable global resonance.
Nonetheless, it was clear that Asia wants to do more by making its own sustainable finance infrastructure more holistic – with Singapore confident of its role in this process as a key financial hub.
SGX sustainability and sustainable finance head Herry Cho said it is the time for Asia Pacific market participants to be “moving from individual sustainability initiatives to broader market impact, embedding sustainability into capital formation, price discovery, risk management, and credible transition outcomes”.
“The opportunity ahead of us is significant,” she added. “Asia needs deeper and more connected capital markets that can support different instruments, investor needs, and risk return profiles – while giving participants the confidence to act.”
This confidence is being increasingly seen through the numbers. Consider the emblematic labelled sustainable bonds market, for example. Globally, sustainable bond issuance was resilient in 2025 after the fifth consecutive year that total annual issuance has hovered around the $1 trillion milestone.
But the Asia Pacific (APAC) sustainable bond story is “far from one of just defending and consolidating market momentum”.
According to Environmental Finance Data,more than $280 billion was raised in 2025 – up 8% on the year prior and stretching the streak of consecutive annual issuance growth to 12 years.
However, Moody’s Ratings sustainable finance assessment assistant vice president Jing Li Yim argued that the global issuance trends suggests that the “phase of easy growth is over – and further expansion would need to come from harder to reach sectors and geographies, as well as instrument types” – this includes around climate resilience and transition-themed finance, as well as emerging growth sectors like data centres.
But, yet again, APAC is taking the lead in driving this diversity. For example, beneath the headline APAC figure we can see the ever-strengthening impact of innovation.
Most prominently, Asia has taken a global lead on transition finance which is continuing to have a powerful ripple effect in sustainable debt markets beyond the region.
The Japanese example has become totemic in this respect. As well as developing its GX green transformation programme, it launched the ground-breaking sovereign ‘climate transition’ bond in 2024 and played a prominent role in encouraging the development of global ‘climate transition’ bond guidelines by the International Capital Market Association (ICMA)-administered Principles in November.
What was clear was the appetite for going beyond the “binary” green and not-green attitude taken by sustainable finance in many markets to date. The growth of transition points to what Eastspring sustainability head Joanne Khew described as the more “nuanced space for sustainability in capital markets”, where there is a recognition that there is “‘one-size-fits-all’ is not the way”.
“At least the market is realising that it is impossible – or getting increasingly impossible – to have [a ‘one-size-fits-all’ approach] across regions and infrastructure and financing types as things are very contextual,” she said.
The ASEAN Taxonomy – now entering its fourth version – as well as the Singapore-Asia Taxonomy have both tried to tackle the transition finance challenge with a ‘traffic light’ approach, which makes ‘amber’ transition activities core to framing sustainability strategies and financing.
More broadly, the rapid pace of adoption of national taxonomies in the APAC reiterates that this process of supporting the scaling of sustainable finance in the region is in its infancy.
Among those countries to have published new or materially updated or expanded existing taxonomies in APAC includes Australia, China, Hong Kong, Cambodia, Thailand and Papua New Guinea, with countries including Laos, New Zealand and India having their own well-developed plans.
Many of these APAC taxonomies have been active in exploring how to expand sustainable finance beyond the more familiar ‘green’ categories and activities into more tricky but potentially more impactful transition topics.
“What has happened with APAC is we see it has really become the testing ground or workshop or laboratory for how to integrate transition into taxonomies,” Sustainable Fitch ratings and opinions director Candice Low said. “Basically, [APAC] is focused on having this expansion or a more inclusive notion [around sustainable finance taxonomies] because of the different starting points of APAC markets.”
APAC markets have also been the source of pioneering deals including around labelled blue finance – including bonds and loans – and bonds tackling nature, climate resilience, and gender.
Blue Bond Accelerator issuer engagement manager Juliette Macresy highlights that Asia has already taken a leading role within the sustainable water-focused ‘blue bond’ sub-label with 36% of all blue bonds from Asia, only just behind the 41% from Latin America.
But there are more opportunities for the region to take a global lead in sustainable finance – in particular, climate adaptation and resilience.
“This is another area where Asia can lead,” Nomura Asset Management sustainable fixed income investment head Jason Mortimer said. “This is because Asia faces this risk probably more than in Europe and the awareness and on-the-ground risk is bigger here. This is another area where Asian issuers – companies and countries - can take the lead like with the transition.”
The global sustainable debt market is facing a dramatic redrawing of the landscape. In this environment, identifying the key areas where sustainable debt delivers meaningful outcomes – both financial and sustainable – is all the more critical.
But APAC feels increasingly prepared, with the tools and targets to provide a map to global markets on how to tackle some of these more challenging yet more impactful themes. There is a confidence and coherence to the way the region is approaching sustainable debt topics, which continues to mature and magnify its influence.
This was all on show today during the conference and bodes well for further exciting insights and innovation to discuss at next year’s edition. That is another reason to be optimistic for the future of sustainable finance – in Asia, it feels like we have another global champion emerging.