A drug syndicate has been smashed and two Chinese nationals arrested after the Australian Border Force and NSW Police raided 10 Sydney homes and seized more than 300 kilograms of ephedrine with a street value of $240 million.
The two men from Campsie, aged 26 and 29, appeared in court this week charged with importing the ephedrine and they now face a maximum 25 years in jail if convicted.
Police began investigating the organised crime network - which allegedly imported the drugs from China and Hong Kong - in March 2016.
The south west Sydney properties were raided in late February and early March.
The 300kg haul was the largest ever seizure of ephedrine by the border force. It could have been used to make up to 240 kilograms of ice with a street value of $240 million.
Border force regional commander Tim Fitzgerald said there would be more arrests to come.
"Investigators from both the ABF and NSW Police are undertaking further activities as we speak with a view to looking where these particular products are going," he said.
The 29-year-old was remanded in custody while the 26-year-old, who was identified as an unlawful non-citizen, was bailed and taken into immigration detention, authorities said.