UAE's Mubadala weighs $6.3 billion AI data center investment in Japan

Mubadala Investment Co., one of Abu Dhabi’s largest sovereign wealth funds, is weighing a potential investment of up to ¥1 trillion (roughly $6.3 billion) to build a 500-megawatt artificial intelligence data centre in Japan’s Akita prefecture. The facility, being developed by US startup BitGrid in collaboration with Japanese IT firm S2, is targeting an operational launch in the early 2030s. Mubadala’s participation would be channelled through MGX, the UAE’s dedicated AI investment vehicle.

"MGX’s ambition to manage over $100 billion in AI-related assets makes it one of the largest dedicated AI investment vehicles on the planet," the project summary states, underscoring the scale of the fund’s AI infrastructure strategy.

The proposed Akita complex would deliver 500 megawatts of capacity — a scale industry observers describe as enormous for a single data centre campus. The planning documents note that a facility of that size is "roughly equivalent to the power consumption of a mid-sized city," highlighting the substantial energy and grid considerations that will follow should the investment proceed.

Project partners and MGX’s expansion

The project is being led on the ground by BitGrid and S2, with Mubadala’s involvement intended through MGX. MGX launched in March 2024 with a stated ambition to aggregate over $100 billion in assets across AI infrastructure, semiconductors and core technologies. The vehicle has been active in dealmaking: in July 2026 MGX completed the acquisition of Aligned Data Centers, and it has been reported to be in negotiations over a potential buyout of Singapore-based DayOne, which also operates data centre assets in Japan.

• Investment size: up to ¥1 trillion (≈ $6.3 billion)
• Capacity: 500 megawatts
• Location: Akita prefecture, northern Honshu, Japan
• Target operational date: early 2030s
• Developers: BitGrid (US startup) and S2 (Japanese IT firm)
• Investor vehicle: MGX (Mubadala’s AI investment arm)

Context: why Akita and why now

Japan has been actively courting foreign capital for data centre infrastructure, promoting regions with abundant renewable energy and policies favourable to decentralised computing facilities outside major urban centres. Akita prefecture — located in northern Honshu — fits that profile, offering access to renewable power sources and space for large-scale campuses.

For Mubadala and the UAE, the move aligns with a long-term strategy to diversify away from hydrocarbons by building out positions in AI infrastructure and related technologies. A single commitment of this magnitude would rank among the largest data centre investments by a sovereign wealth fund and would signal a heavy push by Gulf capital into East Asian compute capacity.

Outlook and next steps

Key milestones to watch are whether MGX formalises the ¥1 trillion commitment and how energy and grid-supply negotiations proceed with Japanese authorities and local utilities. Given the 500-megawatt scale and the early-2030s operational target, permitting, land use, and power procurement agreements will be critical and potentially time-consuming. If completed, the project would not only expand Mubadala’s global footprint in AI infrastructure but also contribute to ongoing efforts to position Japan as a major hub for AI compute.