Zambia Imports of niobium, tantalum, vanadium or zirconium ores and concentrates from Japan was US$1.84 Thousand during 2022, according to the United Nations COMTRADE database on international trade. Zambia Imports of niobium, tantalum, vanadium or zirconium ores and concentrates from Japan - data, historical chart and statistics - was last updated on May of 2024.