Anonymous has located a source in Japanese that confirms that Japan has considered exporting its submarine diesels for Australia's Future Submarines, for almost two years.
This source is a Japanese Diamond economic magazine article of May 10, 2016. When translated it indicates, in part:
This source is a Japanese Diamond economic magazine article of May 10, 2016. When translated it indicates, in part:
[Failure to win the Australian Submarine competition] "...is a big pain in Japan. However, there is a last chance. There is a way for Japanese manufacturers to participate in [the Australian] submarine development as a supplier.
[Japanese Admiral (retired)] Masao Kobayashi, a former Maritime Self-Defense Force's submarine corps commander, said, "The purpose of the technology transfer of submarines is to strengthen the strategic partnership between Japan and Australia. Although we lost the order in the main competition, I think I should speak."
Especially, what [Japan could export is Kawasaki] diesel engines. DCNS [now Naval Group] is planning to install six engines [in Australia's future submarine] according to local reports, but if you make use of Kawasaki Heavy Industries' technology which makes high-output engines of [submarine] "type", it is said that 2 to 4 units are sufficient..."