Sri Lanka Imports of pebbles, gravel, flint, macadam of slag, tarred macadam from Oman was US$9 during 2021, according to the United Nations COMTRADE database on international trade. Sri Lanka Imports of pebbles, gravel, flint, macadam of slag, tarred macadam from Oman - data, historical chart and statistics - was last updated on May of 2024.