Imports In 2022, Saint Barthélemy imported $38 in Sodium hydroxide (caustic soda) in aqueous solution, becoming the 199th 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 1075th most imported product in Saint Barthélemy. Saint Barthélemy imports Sodium hydroxide (caustic soda) in aqueous solution primarily from: Portugal ($38).