Oman Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Sri Lanka was US$33.39 Thousand during 2013, according to the United Nations COMTRADE database on international trade. Oman Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Sri Lanka - data, historical chart and statistics - was last updated on May of 2024.