Imports In 2021, Bhutan imported $109 in Diols except ethylene and propylene glycol, becoming the 0th largest importer of Diols except ethylene and propylene glycol in the world. At the same year, Diols except ethylene and propylene glycol was the 0th most imported product in Bhutan. Bhutan imports Diols except ethylene and propylene glycol primarily from: N/A.