Van Tai Du Lich Viet Hung Address: Khu Iii, That Khe Town, Trang Dinh District, Lang Son Province Enterprise code: 4900260921 Phone: 0205883288 Representative: Bui Quoc Viet Adress: Khu Iii, That Khe Town, Trang Dinh District, Lang Son Province That Khe Town, Trang Dinh District, Lang Son ProvinceFounding date: 6 - 9 - 2007