Imports In 1995, Sao Tome and Principe imported $805 in Tin pipes or tubes and pipe fittings, becoming the 0th largest importer of Tin pipes or tubes and pipe fittings in the world. At the same year, Tin pipes or tubes and pipe fittings was the 0th most imported product in Sao Tome and Principe. Sao Tome and Principe imports Tin pipes or tubes and pipe fittings primarily from: N/A.