United States Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Congo was US$3.48 Thousand during 2019, according to the United Nations COMTRADE database on international trade. United States Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Congo - data, historical chart and statistics - was last updated on June of 2024.