Sao Tome and Principeimports of Gases, rare; other than argon was $2.58K . Sao Tome and Principeimported Gases, rare; other than argon from Portugal ($2.58K )Sao Tome and Principeimports of Gases, rare; other than argon was $2.58K . Sao Tome and Principeimported Gases, rare; other than argon from Portugal ($2.58K ).Gases, rare; other than argon exports by country in 2021