Spain Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Yemen was US$10.43 Thousand during 2023, according to the United Nations COMTRADE database on international trade. Spain Exports of pebbles, gravel, flint, macadam of slag, tarred macadam to Yemen - data, historical chart and statistics - was last updated on May of 2024.