Dam Hien Address: Hang Cau Hamlet, Quoc Viet Commune, Trang Dinh District, Lang Son Province Enterprise code: 4900669721 Phone: 02375354436 Representative: Dam Sinh Adress: Hang Cau Hamlet, Quoc Viet Commune, Trang Dinh District, Lang Son Province Quoc Viet Commune, Trang Dinh District, Lang Son ProvinceFounding date: 10 - 8 - 2011