Imports In 1995, Guinea imported $1k 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 Guinea. Guinea imports Niobium, Tantalum, Vanadium and Zirconium Ore primarily from: N/A.