The official government fact sheet for the AUKUS SSN states, “Australia will begin building its first SSN-AUKUS in Adelaide, South Australia, by the end of this decade. Australia plans to deliver the first Australian-built SSN-AUKUS to the Royal Australian Navy in the early 2040s.” This is much earlier than any of the press statements indicated.
https://www.defence.gov.au/sites/def...ct%20sheet.pdf