Sao Tome And Principe Imports of silk yarn and yarn spun from silk waste; silk worm gut from Togo was US$39 during 2017, according to the United Nations COMTRADE database on international trade. Sao Tome And Principe Imports of silk yarn and yarn spun from silk waste; silk worm gut from Togo - data, historical chart and statistics - was last updated on May of 2024.