Burundi Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Congo was US$913 during 2020, according to the United Nations COMTRADE database on international trade. Burundi Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Congo - data, historical chart and statistics - was last updated on May of 2024.