Imports In 2017, North Korea imported $33.7k in Dithionites and sulphoxylates of metals except sodium, becoming the 0th largest importer of Dithionites and sulphoxylates of metals except sodium in the world. At the same year, Dithionites and sulphoxylates of metals except sodium was the 0th most imported product in North Korea. North Korea imports Dithionites and sulphoxylates of metals except sodium primarily from: N/A.