United Arab Emirates Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Portugal was US$492 during 2013, according to the United Nations COMTRADE database on international trade. United Arab Emirates Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Portugal - data, historical chart and statistics - was last updated on June of 2024.