The drug, which weighed 400kg, had been hidden in an air shipment that had been declared as 'sriracha chilli sauce.'
They were seized on October 15 but police released information about the incident today.
Four men, aged 30, 34, 36 and 45, have been arrested in connection with the discovery.
Acting ABF Regional Commander for NSW, Matt O’Connor, said the seizure had prevented approximately four million hits of ice hitting the streets.
'Methamphetamine, or ice, has a devastating effect on the community every single day – and the ABF will continue working with our domestic law enforcement partners to stop those who try to import this life destroying drug,' Commander O’Connor said.