Imports In 2005, North Korea imported $375 in Cyanides and cyanide oxides of metals except sodium, becoming the 0th largest importer of Cyanides and cyanide oxides of metals except sodium in the world. At the same year, Cyanides and cyanide oxides of metals except sodium was the 0th most imported product in North Korea. North Korea imports Cyanides and cyanide oxides of metals except sodium primarily from: N/A.