The recent Memorandum of Cooperation (MoC) between the UK Atomic Energy Authority (UKAEA) and Japan’s National Institutes for Quantum Science and Technology (QST) marks a significant step in strengthening global fusion energy partnerships. This agreement, coinciding with Japanese Prime Minister Sanae Takaichi's visit to the UK, aims to accelerate the development of fusion as a safe, sustainable, and economically viable energy source. The MoC builds upon the UK-Japan Fusion Memorandum of Cooperation agreed in June 2025, reflecting both nations' shared ambition to unlock fusion's potential for clean, secure energy and economic growth.
The UKAEA-QST MoC establishes a comprehensive framework for joint research, engineering development, and knowledge exchange. This partnership will address key scientific and engineering challenges in fusion energy, covering areas such as fusion core and plant technologies, systems engineering, fuel cycle and safety, regulation, standards, and skills development. By enabling targeted collaborative projects, joint research, and shared facility use, the partnership aims to accelerate progress towards commercially deployable fusion energy.
Lord Vallance, Minister for Science, Innovation, Research, and Nuclear, emphasized the importance of this collaboration, stating that it marks a significant step in strengthening global partnerships and accelerating progress towards clean, secure energy. He highlighted Britain's leadership in the fusion industry and the UKAEA's role in working closely with international partners to unlock fusion's potential. The UK's support for the sector, including over £2.5 billion in backing and the launch of the national Fusion Strategy, is expected to create thousands of high-skilled jobs across the country.
Yasuyoshi Kakita, Vice-Minister for Policy Coordination at the Ministry of Education, Culture, Sports, Science, and Technology (MEXT), expressed Japan's enthusiasm for the partnership. He noted that fusion energy has been designated as one of 17 key strategic areas in Japan's new growth strategy and that efforts are underway to explore initiatives toward societal implementation. The institutional cooperation between the UK and Japan further solidifies their partnership, with both nations looking forward to creating valuable outcomes.
Tim Bestwick, CEO of UKAEA, emphasized the global nature of fusion energy challenges and the importance of international collaboration. He highlighted the long-standing partnership with QST and the new opportunities to combine expertise in tackling key challenges in fusion power delivery. Shigeo Koyasu, President of QST, echoed this sentiment, emphasizing the significance of fusion energy research and development in addressing global challenges. He expressed hope that the collaboration would contribute to significant social and economic value, particularly in the energy sector and beyond.
In conclusion, the UKAEA-QST MoC represents a significant milestone in the global fusion energy landscape. By strengthening international collaboration and addressing key scientific and engineering challenges, this partnership has the potential to accelerate the development of fusion as a viable energy source. The involvement of both the UK and Japan, two world leaders in the fusion industry, further underscores the importance of global cooperation in tackling this complex and promising energy technology.
