Greece Imports from Bulgaria of Niobium, Tantalum, Vanadium or Zirconium Ores and Concentrates was US$554 during 2018, according to the United Nations COMTRADE database on international trade. Greece Imports from Bulgaria of Niobium, Tantalum, Vanadium or Zirconium Ores and Concentrates - data, historical chart and statistics - was last updated on May of 2024.