Imports In 2021, Iran imported $30.5k in Ethylene, propylene, butylene, butadiene, liquefied, becoming the 0th largest importer of Ethylene, propylene, butylene, butadiene, liquefied in the world. At the same year, Ethylene, propylene, butylene, butadiene, liquefied was the 0th most imported product in Iran. Iran imports Ethylene, propylene, butylene, butadiene, liquefied primarily from: N/A.