Netherlands Imports of niobium, tantalum, vanadium or zirconium ores and concentrates from Cameroon was US$25 during 2017, according to the United Nations COMTRADE database on international trade. Netherlands Imports of niobium, tantalum, vanadium or zirconium ores and concentrates from Cameroon - data, historical chart and statistics - was last updated on May of 2024.