Imports In 2013, Turkmenistan imported $498k in Natural barium carbonate (witherite), becoming the 0th largest importer of Natural barium carbonate (witherite) in the world. At the same year, Natural barium carbonate (witherite) was the 0th most imported product in Turkmenistan. Turkmenistan imports Natural barium carbonate (witherite) primarily from: N/A.