Imports In 2022, Tonga imported $304 in Other live plants, cuttings and slips; mushroom spawn, becoming the 203rd largest importer of Other live plants, cuttings and slips; mushroom spawn in the world. At the same year, Other live plants, cuttings and slips; mushroom spawn was the 701st most imported product in Tonga. Tonga imports Other live plants, cuttings and slips; mushroom spawn primarily from: New Zealand ($304).