Namibia Exports of niobium, tantalum, vanadium or zirconium ores and concentrates to South Africa was US$5 during 2023, according to the United Nations COMTRADE database on international trade. Namibia Exports of niobium, tantalum, vanadium or zirconium ores and concentrates to South Africa - data, historical chart and statistics - was last updated on May of 2024.