Estonia Exports of niobium, tantalum, vanadium or zirconium ores and concentrates to Russia was US$6.15 Million during 2022, according to the United Nations COMTRADE database on international trade. Estonia Exports of niobium, tantalum, vanadium or zirconium ores and concentrates to Russia - data, historical chart and statistics - was last updated on May of 2024.