A 40-year-old man was arrested and will appear in the Palmerston North District Court today charged with importing a Class A controlled drug.
The charge carries a maximum penalty of life in prison.
"We believe the drugs were sourced through the man's contacts in South East Asia," said Detective Steve Field.
"Our strong partnership with Customs provides us with opportunities to act on information we receive and dismantle organised criminal networks operating within our city."
Field vowed police would do all they could to crack down on the dangerous drug.
"This drug destroys families and communities, and the social cost is significant," he said.
"People involved in the methamphetamine trade remain a top priority for us, and we are committed to ensuring they are caught and held accountable for their actions."
The joint investigation is still ongoing, and further charges may be laid against the man.
Field urged anyone with information about drug manufacturing or supply rings to contact their local police station, or to report anonymously via Crimestoppers on 0800 555 111.