Hoi Chu Thap Do Address: Khu I, That Khe Town, Trang Dinh District, Lang Son Province Enterprise code: 4900782678 Phone: 0915079886 Representative: Be Van Khuu Adress: Ban Nam Hamlet, Khang Chien Commune, Trang Dinh District, Lang Son Province That Khe Town, Trang Dinh District, Lang Son ProvinceFounding date: 27 - 5 - 2015