To Hop Tac Dung Nuoc Thon Thiet Nham Address: Thiet Nham Hamlet, Minh Duc, Minh Duc Commune, Viet Yen District, Bac Giang Province Enterprise code: 2400573369 Phone: 02389344235 Representative: Than Van Canh Adress: Thiet Nham Hamlet, Minh Duc Commune, Viet Yen District, Bac Giang Province Minh Duc Commune, Viet Yen District, Bac Giang ProvinceFounding date: 10 - 11 - 2011