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AirTrunk Secures Largest Financing for a Data Center in Japan with US$1.24 Billion (JPY191.6 Billion) Green Loan

03.13.26

Simpson Thacher advised AirTrunk in connection with its US$1.24 billion (JPY191.6 billion) green loan in Japan to support the refinancing and continued development of its TOK1 hyperscale data center campus in East Tokyo. This is the largest data center financing ever completed in Japan.

The financing is a green loan, and margin incentives from the facility will be directed to the AirTrunk Social Impact Fund, supporting community initiatives across Japan, including STEM education, digital equity, biodiversity & conservation, sustainable innovation, and disaster relief.

To read the full announcement from AirTrunk, please see here.

The Simpson Thacher team included Makiko Harunari, Alvin Kwong, Mark Watson, Hyunmin Youm, Chenyu Cui, Mounah Abdallah and Zhendong Xu (Banking and Credit).