Imports In 2021, Saint Vincent and the Grenadines imported $3.04k in Quaternary Ammonium Salts and Hydroxides, becoming the 0th largest importer of Quaternary Ammonium Salts and Hydroxides in the world. At the same year, Quaternary Ammonium Salts and Hydroxides was the 0th most imported product in Saint Vincent and the Grenadines. Saint Vincent and the Grenadines imports Quaternary Ammonium Salts and Hydroxides primarily from: N/A.