Hop Tac Xa Ngoc Han Address: Hieu Le Hamlet, Lang Hieu Commune, Trung Khanh District, Cao Bang Province Enterprise code: 4800222489 Phone: 02063826898 Representative: La Van Bang Adress: Hieu Le Hamlet, Lang Hieu Commune, Trung Khanh District, Cao Bang Province Lang Hieu Commune, Trung Khanh District, Cao Bang ProvinceFounding date: 14 - 5 - 2009