Since British Aerospace has grown massively and now encompasses a lot of non aerospace work, they prefer to be known as BAE Systems - similar to how BOC Gases wants everyone to forget that they were originally British Oxygen Company.
Apart from that bit of trivia, it would be good to know the technicalities of how the Australian taxpayer money is appropriated & accounted for. Some reports are that the RR facility that assembles the nuclear reactors will be jointly owned by the British & Australian governments so that is a tangible asset but with a limited customer base, I can’t see the market growing.