Tu Van Xay Dung Va Thuong Mai Hanh Thao Joint Stock Company Address: Khu I, That Khe Town, Trang Dinh District, Lang Son Province Enterprise code: 4900287095 Phone: 0205883275 Representative: Duong Duc Hanh Adress: Khu I, That Khe Town, Trang Dinh District, Lang Son Province That Khe Town, Trang Dinh District, Lang Son ProvinceFounding date: 17 - 10 - 2008