Portugal Exports of niobium, tantalum, vanadium or zirconium ores and concentrates to Spain was US$4.61 Thousand during 2023, according to the United Nations COMTRADE database on international trade. Portugal Exports of niobium, tantalum, vanadium or zirconium ores and concentrates to Spain - data, historical chart and statistics - was last updated on May of 2024.