Phong Lao Dong, Thuong Binh, Xa Hoi - Dan Toc Address: Khu 2, Na Sam Town, Van Lang District, Lang Son Province Enterprise code: 4900889773 Phone: 02053880170 Representative: Hoang Thi Ha Adress: Na Sam Town, Van Lang District, Lang Son Province Na Sam Town, Van Lang District, Lang Son ProvinceFounding date: 22 - 9 - 2022