Small modular reactors have officially entered the ASEAN-Japan energy agenda. On July 8, 2026, in Bangkok, the 18th DISG Task Force Meeting adopted the “DISG Task Force Joint Declaration”: a document outlining the framework for bilateral cooperation across five priority areas, with SMRs explicitly named among the next-generation technologies on which to build shared infrastructure and technical collaboration.
The DISG — Dialogue for Innovative and Sustainable Growth — is the public-private platform that has long coordinated economic dialogue between the ten ASEAN member states and Japan. Chaired by Masuo Kuremura, it brings together ministries, chambers of commerce, and private companies from member countries. The declaration adopted at this 18th session is the first to explicitly codify cooperation on SMRs, alongside biofuels and sustainable aviation fuel. The stated objective is twofold: energy security and carbon neutrality, to be pursued jointly through the development of shared supply infrastructure.
On the energy front, the declaration places SMRs within a broader framework encompassing the ASEAN Power Grid and the Asia Zero Emission Community (AZEC), the multilateral platform launched by Japan to accelerate the region’s energy transition. The underlying message is that regional energy resilience depends on both interconnected electricity grids and new generation technologies. SMRs address both needs: they can be deployed locally, reduce dependence on large centralized plants, and integrate effectively with distributed networks.
Cooperation extends beyond energy. The declaration identifies semiconductors, the automotive sector, digital infrastructure, and artificial intelligence as strategic areas. Yumiko Hata, Director of the Asia-Pacific Division at Japan’s METI (Ministry of Economy, Trade and Industry), stated during the session that Japan will promote energy security and supply chain resilience measures in close coordination with the individual countries’ chambers of commerce. The signal is clear: Tokyo does not intend to act unilaterally, but to build networks of mutual interdependence with its ASEAN partners.
The question of execution speed remains open. A representative from Brunei raised the issue during the proceedings, noting that Japan, despite possessing advanced technologies, lags behind Western and Chinese competitors in its ability to translate technical excellence into concrete market presence. It is a familiar criticism — one that has pushed METI in recent years to rethink its industrial internationalization strategies, including those related to civil nuclear energy.
With this declaration, SMRs have secured a place within a high-profile diplomatic and economic framework. The ASEAN region is home to over 680 million people, faces rapidly growing energy demand, and still relies heavily on coal for electricity generation. If technical cooperation with Japan translates into concrete deployment projects, the region could become one of the key reference markets for modular reactors over the next two decades. The declaration is a political commitment. The construction sites come later.
