Canada Imports of pebbles, gravel, flint, macadam of slag, tarred macadam from Papua New Guinea was US$29 during 2023, according to the United Nations COMTRADE database on international trade. Canada Imports of pebbles, gravel, flint, macadam of slag, tarred macadam from Papua New Guinea - data, historical chart and statistics - was last updated on May of 2024.