Belgium Exports of unsaturated acyclic or cyclic monocarboxylic acids, their anhydrides to Burundi was US$40 during 2021, according to the United Nations COMTRADE database on international trade. Belgium Exports of unsaturated acyclic or cyclic monocarboxylic acids, their anhydrides to Burundi - data, historical chart and statistics - was last updated on May of 2024.