Imports In 2014, Eritrea imported $53 in Sodium hydroxide (caustic soda) in aqueous solution, becoming the 0th largest importer of Sodium hydroxide (caustic soda) in aqueous solution in the world. At the same year, Sodium hydroxide (caustic soda) in aqueous solution was the 0th most imported product in Eritrea. Eritrea imports Sodium hydroxide (caustic soda) in aqueous solution primarily from: N/A.