Dau Tu Xay Dung Viet An Hoang LTD Address: Hung Thang Hamlet, Hung An Commune, Bac Quang District, Ha Giang Province Enterprise code: 5100443406 Phone: 0912600303 Representative: Vuong Quang Tuyen Adress: Civil Group 2, Viet Quang Town, Bac Quang District, Ha Giang Province Founding date: 20 - 10 - 2016