Colombia Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Mexico was US$133.35 Thousand during 2021, according to the United Nations COMTRADE database on international trade. Colombia Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Mexico - data, historical chart and statistics - was last updated on May of 2024.