AFAIK, France developed their own nuclear program - both civil and military - in a completely independent way from the US. I don't know how much cooperation th

AFAIK, France developed their own nuclear program - both civil and military - in a completely independent way from the US. I don't know how much cooperation there is nowadays, but I wouldn't expect a lot of it in a market where there is a very strong competition between Areva and Westinghouse (which, incidentally, is a company based in the US, but is owned by Japan's Toshiba). Anyway, regarding the technology, Terrapower is a US company and I'm pretty sure they'll also get all the know-how that will come out of the developments in China.