Imports In 2019, North Korea imported $700 in Niobium, Tantalum, Vanadium and Zirconium Ore, becoming the 0th largest importer of Niobium, Tantalum, Vanadium and Zirconium Ore in the world. At the same year, Niobium, Tantalum, Vanadium and Zirconium Ore was the 0th most imported product in North Korea. North Korea imports Niobium, Tantalum, Vanadium and Zirconium Ore primarily from: N/A.