The association said there was no consultation from the government on the 2 percent tax on kava exports it is planning to apply.
It has written to the Finance Minister, Johnny Koanapo, pointing out that kava has become a huge game changer in recent years for farmers and their families.
It said this improvement in quality and quantity is down to a major replanting programme six years and now the country is reaping the benefits.
The association said this has been achieved with little help from the government.