Brazil Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Liberia was US$24 during 2021, according to the United Nations COMTRADE database on international trade. Brazil Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Liberia - data, historical chart and statistics - was last updated on June of 2024.