Huyen Doan Van Lang Address: Khoi Dan Van, Khu 2, Na Sam Town, Van Lang District, Lang Son Province Enterprise code: 4900889685 Phone: 02053880396 Representative: Chu Thi Duyen Adress: Khu 1, Na Sam Town, Van Lang District, Lang Son Province Na Sam Town, Van Lang District, Lang Son ProvinceFounding date: 22 - 9 - 2022