Truong Tieu Hoc Thi Tran Na Sam Address: Khu 2, Na Sam Town, Van Lang District, Lang Son Province Enterprise code: 4900889734 Phone: 02053880065 Representative: Luong Thu Ha Adress: Coc Nam, Tan My Commune, Van Lang District, Lang Son Province Na Sam Town, Van Lang District, Lang Son ProvinceFounding date: 22 - 9 - 2022