Where Australian nuclear submarines might be built

Will Australia still receive nuclear-powered submarines, and would Britain build them?

Australia would probably assemble the boats, while Britain could be a plausible source for reactor modules because it had more available production capacity than the United States.

Australia would probably build much of its future SSN force itself rather than import complete submarines. The uncertain element is the reactor module, which requires a specialized industrial line. Britain may have spare capacity, while American yards would need either a new line or a complete-build arrangement. Alliance procurement is divided by bottlenecks in nuclear engineering rather than by a simple national choice of ship design.