Madagascar Exports of niobium, tantalum, vanadium or zirconium ores and concentrates to Mauritius was US$17 during 2018, according to the United Nations COMTRADE database on international trade. Madagascar Exports of niobium, tantalum, vanadium or zirconium ores and concentrates to Mauritius - data, historical chart and statistics - was last updated on May of 2024.