Mauritania Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Ghana was US$30 during 2014, according to the United Nations COMTRADE database on international trade. Mauritania Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Ghana - data, historical chart and statistics - was last updated on May of 2024.