Kyoto Fusioneering and Amentum sign MoU for fusion collaboration in the UK, Japan and US
The companies will explore joint fusion opportunities by combining fuel-cycle, blanket and heating technologies with plant-integration expertise. The MoU does not announce a specific power-plant order or construction decision.
Read the Japanese originalAnnouncement date：2026-11-04
Kyoto Fusioneering (KF) announced a memorandum of understanding with US-based Amentum on November 4, 2026. Amentum published its announcement on November 3. The framework is intended to help the companies explore joint opportunities in public and private fusion programmes across the UK, Japan and the US.
The collaboration combines KF’s fuel-cycle, breeding-blanket and plasma-heating technologies with Amentum’s capabilities in plant integration and systems engineering. The companies also intend to explore digital and AI-enabled tools for engineering and programme delivery.
The collaboration is relevant to integrating individual technologies into a complete power plant. However, the announcements do not establish a specific power-plant order value, a construction start or achieved electricity generation. Shorter design cycles and improved predictive performance should likewise be understood as anticipated benefits.
Information checked as of：2026-11-05
Based on both companies’ announcements. Joint business opportunities remain under exploration.