Blended finance

Blended finance in ASEAN: from concept to scale

Blended finance has been the most talked-about and least scaled instrument in the impact toolkit for the better part of a decade. The thesis is unimpeachable — use concessional capital from public or philanthropic sources to de-risk transactions enough to crowd in commercial capital that would otherwise stay on the sidelines. The execution, until recently, has been thin.

2025 was the year that changed.

The shape of the market

Convergence's data shows Asia closed 137 blended-finance deals worth $16 billion between 2019 and 2023, concentrated in renewable energy, climate-resilient infrastructure, and financial inclusion. That's the historical run-rate.

The forward pipeline is materially larger. The Financing Asia's Transition Partnership (FAST-P), launched in 2024 as a public-private-philanthropic partnership, is targeting $5 billion in catalytic and commercial capital for Asia's decarbonisation and climate-resilience agenda. The ASEAN Catalytic Green Finance Facility (ACGF) continues to scale, focused on bankable sustainable-infrastructure projects across the region.

And the most consequential structural piece — the mARs Guide (managed adaptation reporting standards) — is being built through 2026 and 2027, led by SEC Philippines and the Monetary Authority of Singapore, translating ASEAN Taxonomy adaptation principles into operational guidance that financial institutions can deploy at scale.

The architecture is no longer the bottleneck. The pipeline of transactions structured to use it is.

Where it's working

Renewable energy. The bulk of the $16 billion historical figure sits here. Solar, wind, and grid-storage projects in Indonesia, Vietnam, the Philippines, and Thailand have absorbed DFI guarantees, first-loss tranches, and concessional debt at scale. The unit economics work, and the deal templates are now standardised enough to deploy without bespoke structuring for each transaction.

Financial inclusion. Microfinance and embedded-finance platforms serving smallholder farmers, women-led SMEs, and underbanked tier-2/3 city populations have been a consistent destination for catalytic capital — particularly from CIFs, World Bank IDA, and IFC's facilities. The track record is long enough now that commercial capital follows on relatively quickly.

Sustainable infrastructure. ACGF's pipeline is heavily weighted to municipal water, urban transport, and climate-resilient transmission projects. These transactions are large (typically $100M+), slow (multi-year structuring), and have absorbed the most of the meaningful DFI capital deployed in the region.

Where it's not working — yet

Three categories where blended finance should be working but isn't, at scale:

Adaptation finance. Mitigation gets the deal flow and the headlines. Adaptation — agricultural resilience, coastal protection, urban heat management, water security — has the most desperate need and the least developed transaction pipeline. IEEFA's recent work on scaling adaptation finance in Southeast Asia calls this out clearly: the catalytic capital is willing, the projects are real, but they're often not bankable as standalone transactions and there's no functional structuring layer between them and commercial finance.

SME-level transactions. Most blended-finance deal templates assume transaction sizes that work for utility-scale infrastructure or sovereign-adjacent issuers. The SME and mid-market layer — where the bulk of SEA's real-economy impact opportunities live — has thin access to blended structures because origination, structuring, and monitoring costs eat the unit economics.

Local-currency tranches. Most concessional capital arrives in USD or EUR. Most SEA impact opportunities generate local-currency revenue. The FX mismatch absorbs a meaningful share of the de-risking value that concessional capital is supposed to deliver. Solutions exist (TCX, local-currency hedge facilities) but aren't yet deployed at the scale the pipeline needs.

For fund managers raising in 2026: the most fundable blended-finance fund strategies right now are those that explicitly address the adaptation, SME, or local-currency gap — ideally with a structuring partnership with one of the major DFIs already in place. Generic "climate finance fund" mandates without that specificity have a much harder time getting first close.

What CCX is doing in this space

Three live lines of work that connect to this picture:

If you're working in this corner — building a fund, structuring a project, or evaluating where to deploy catalytic capital — let's talk.

Sources. Convergence on blended finance for ASEAN regional goals · WEF on blended finance and Asia's SDG gap · IEEFA on scaling adaptation finance in SEA · ESG News on ASEAN's adaptation-finance white paper · UNEP-FI on the ASEAN Taxonomy adaptation guide.