Nobody in North America has a press that can make a vessel for a nuclear reactor without making it in pieces and welding them together (probably adding a year to the schedule if you don’t use a new welding technique just developed in the UK not to mention people being anxious over the welds)

There is a Canadian company that is gearing up to make small reactor vessels like the BWRX-300 but so far I haven’t seen a sign they aren’t Nuscale 2.0