Imports In 2022, Sao Tome and Principe imported $255 in Non-Retail Pure Cotton Yarn, becoming the 172nd largest importer of Non-Retail Pure Cotton Yarn in the world. At the same year, Non-Retail Pure Cotton Yarn was the 840th most imported product in Sao Tome and Principe. Sao Tome and Principe imports Non-Retail Pure Cotton Yarn primarily from: Portugal ($255).