The majority of the operation has taken place in Western Bay of Plenty involving local staff and staff from Rotorua.
Waikato Police provided assistance to execute three warrants in Hamilton where a very significant seizure of precursor material was made. Two arrests were associated with that seizure.
Thousands of dollars worth of methamphetamine and precursors with the potential to make millions of dollars worth of methamphetamine have also been recovered during the operation along with firearms, ammunition, cash and a stolen motorbike.
Three motorbikes and two vehicles have also been seized under Proceeds of Crime legislation.
"These are sweet victories in an ongoing battle against organised criminals and gangs," Detective Senior Sergeant Lindsay Pilbrow said.
"Methamphetamine causes nothing but misery and our communities have had a guts-full. Not only are we intent on disrupting the trade, we will take every opportunity to hit them where it hurts by having the proceeds of their criminal activity forfeited."
If you have information about drug manufacture or supply, ring your local Police Station. Alternatively information can be provided anonymously via Crimestoppers on 0800 555111.