Tonga Imports of pebbles, gravel, flint, macadam of slag, tarred macadam from Indonesia was US$2.61 Thousand during 2023, according to the United Nations COMTRADE database on international trade. Tonga Imports of pebbles, gravel, flint, macadam of slag, tarred macadam from Indonesia - data, historical chart and statistics - was last updated on August of 2026.