Nigeria Exports of niobium, tantalum, vanadium or zirconium ores and concentrates to Spain was US$76.02 Thousand during 2018, according to the United Nations COMTRADE database on international trade. Nigeria Exports of niobium, tantalum, vanadium or zirconium ores and concentrates to Spain - data, historical chart and statistics - was last updated on May of 2024.