A U.S.-based nuclear fusion developer wants to deploy a reactor in Japan in the late 2030s or early 2040s, in line with the Asian country’s broader plans to adopt the potent, low-carbon energy source.

Commonwealth Fusion Systems, which last week announced it raised $863 million from investors including Nvidia, has been in dialogue with Japanese government officials on the use of its technology, CEO Bob Mumgaard said in an interview in Tokyo on Wednesday.

The firm does not currently have any reactors in operation but also drew interest from a consortium of 12 Japanese companies led by trading houses Mitsui & Co. and Mitsubishi Corp. Members of the group will gain knowledge in development, construction, operation and maintenance of Commonwealth’s reactor, Mitsubishi said in a statement on Tuesday.

Starting a reactor in Japan in "late 2030s, early 2040s would be a great scenario,” Mumgaard said, adding he has further plans to meet officials to exchange information about the global fusion market and updates about his company.

Nuclear fusion is a process in which immense energy is released from two atoms being combined, but it’s very difficult to achieve in a sustained way. Several countries are eyeing the technology for its climate and energy security benefits but only some, like China, the U.S., Russia and South Korea have managed to crack the basics. Japan revised its national strategy in June to support fusion deployment and build a demonstration plant in the 2030s.

Commonwealth, which spun out of the Massachusetts Institute of Technology in 2018, is developing a 400-megawatt commercial power plant in the U.S. state of Virginia with goals of operating it in the early 2030s. Alphabet’s Google has agreed to buy half the output from the project.