Imports In 1996, Costa Rica imported $77.9k 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 Costa Rica. Costa Rica imports Refined sulphur, not sublimate, precipitate, colloida primarily from: N/A.