Hoi Chu Thap Do Address: Khu 2, Na Sam Town, Van Lang District, Lang Son Province Enterprise code: 4900890592 Phone: 0979880025 Representative: Luong Kim Tuyet Adress: Khu 2, Na Sam Town, Van Lang District, Lang Son Province Na Sam Town, Van Lang District, Lang Son ProvinceFounding date: 27 - 10 - 2022