Imports In 1995, Republic of the Congo imported $615 in Refined sulphur, not sublimate, precipitate, colloida, becoming the 0th largest importer of Refined sulphur, not sublimate, precipitate, colloida in the world. At the same year, Refined sulphur, not sublimate, precipitate, colloida was the 0th most imported product in Republic of the Congo. Republic of the Congo imports Refined sulphur, not sublimate, precipitate, colloida primarily from: N/A.