The new Labor ministry is set to cost the government an extra $630,000 per year with 15 members sworn in to serve on cabinet.

South Australia has a new billionaire, with shopping centre magnate Nick DiMauro joining the ranks of the country’s wealthy elite this year.

Adelaide’s submarine shipyard will more than triple in size to become one of the most sophisticated construction bases in the world, as the federal government plans a huge expansion of the Osborne site ahead of the nuclear-powered submarine build.

And in sport, Ash Barty has closed the door on tennis but admits “it’s not padlocked’’ as her sporting future remains shrouded in mystery.

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