Imports In 2022, Greenland imported $34 in Quaternary Ammonium Salts and Hydroxides, becoming the 191st largest importer of Quaternary Ammonium Salts and Hydroxides in the world. At the same year, Quaternary Ammonium Salts and Hydroxides was the 969th most imported product in Greenland. Greenland imports Quaternary Ammonium Salts and Hydroxides primarily from: Denmark ($34).