Imports In 2001, Hong Kong imported $260 in 1,2-dichloropropane and dichlorobutanes, becoming the 0th largest importer of 1,2-dichloropropane and dichlorobutanes in the world. At the same year, 1,2-dichloropropane and dichlorobutanes was the 0th most imported product in Hong Kong. Hong Kong imports 1,2-dichloropropane and dichlorobutanes primarily from: N/A.