日本語 
Japan LEO Shachu, Inc., a space-focused company established by Mitsui & Co., has completed a third-party allotment of newly issued shares. As part of this transaction, Mitsubishi Heavy Industries and Mitsubishi Electric have finalized their subscription and investment procedures.
To date, the International Space Station has been developed and operated under an intergovernmental framework involving 15 participating countries. With the ISS scheduled for retirement in 2030, the development and operation of space stations in the post-ISS era are expected to shift toward private-sector leadership. As commercial activity related to this transition accelerates, significant market expansion is anticipated.
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Japan LEO Shachu was established in July 2024 as a wholly owned subsidiary of Mitsui & Co., with the goal of fostering a new low Earth orbit economy by leveraging Japan’s technological capabilities and industrial base. In April 2025, the company began development of the Japan Module, designed to connect with commercial space stations. This initiative aims to help Japan secure commercial utilization opportunities in low Earth orbit by building on national strengths demonstrated through the Japanese Experiment Module “Kibo” on the ISS and the new unmanned cargo transfer spacecraft, HTV-X.
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