The packages were seized from between February and this month and authorities quickly connected them to the same criminal syndicate.
The arrested women appeared in court this afternoon and face multiple charges for importing a Class A controlled drug.
Customs investigations manager Maurice O'Brien said the case highlighted how organised criminals may be working to try to get such drugs into the country via the regions, with the thought that they were less likely to be caught.
However, solid processes meant they would eventually be found out.
"Criminals use a variety of ways to disguise the concealment of this insidious drug that causes so much harm to our communities. But Customs has good systems and tools in place to identify and intercept it and the resources to link multiple shipments to those involved.''
Detective senior sergeant Mark Greene, of Hamilton Police, said: "Methamphetamine is a significant driver of crime and it does enormous damage to families and communities. Police and our partner agencies are determined to do whatever it takes to prevent the harm and victimisation it causes."
Police urged anyone who may suspect someone smuggling or selling drugs, to report them.
**Can you help? Call police immediately, on 111, or CrimeStoppers anonymous: 0800 555 111. You can also contact Customs: 0800 4 CUSTOMS.