Nigeria Imports of pebbles, gravel, flint, macadam of slag, tarred macadam from Uganda was US$1.66 Thousand during 2020, according to the United Nations COMTRADE database on international trade. Nigeria Imports of pebbles, gravel, flint, macadam of slag, tarred macadam from Uganda - data, historical chart and statistics - was last updated on May of 2024.