Prime Minister Scott Morrison said he held "candid talks" with French President Emmanuel Macron in Paris over the troubled project, as well as with the state-owned Naval Group company.
In 2016 Naval Group, then known as DCNS, was awarded Australia's largest ever defence contract to design and build 12 "regionally superior submarines" to replace the Collins Class fleet.
Naval Group has been given until September to revise its design work plans for the next two years of the project, after a plan it submitted in February was rejected by Defence for being too expensive. .
"It's their contract — that is Naval group — and like with any contract I would expect them to be able to deliver on that," Mr Morrison said.
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