Mexico Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Australia was US$1.62 Thousand during 2017, according to the United Nations COMTRADE database on international trade. Mexico Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Australia - data, historical chart and statistics - was last updated on May of 2024.