Turkey Imports of niobium, tantalum, vanadium or zirconium ores and concentrates from Iran was US$4.5 Thousand during 2018, according to the United Nations COMTRADE database on international trade. Turkey Imports of niobium, tantalum, vanadium or zirconium ores and concentrates from Iran - data, historical chart and statistics - was last updated on May of 2024.