Seychelles Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to South Africa was US$270 during 2016, according to the United Nations COMTRADE database on international trade. Seychelles Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to South Africa - data, historical chart and statistics - was last updated on May of 2024.