Mitsubishi Heavy Industries announced a capital and business alliance involving an investment of ¥10 billion in Preferred Networks. The focus will be on how sovereignty is designed into the implementation of domestic AI for defense applications.
Mitsubishi Heavy Industries plans to invest ¥10 billion in Preferred Networks and will enter into an agreement as part of a capital and business alliance. The contract date is 31 August 2026 and the announcement date is 16 September. The arrangement is designed around medium- to long-term joint development, rather than the June timetable. The investment can be understood as an effort to secure an interest in a domestically developed AI stack for defense and infrastructure, rather than simply providing funding.
The official announcement defines the scope as mission-critical areas, including social infrastructure, while media reports describe it as the development of domestic AI for defense equipment. At its core is a sovereign AI design that prioritizes the accumulation in Japan of not only AI technology, but also data and operational expertise, on the assumption that equipment availability and reliability in field operations are essential.