Duc Son LTD Address: No 273, Nguyen Thai Hoc Street, Tran Phu Ward, Ha Giang City, Ha Giang Province Enterprise code: 5100333530 Phone: 02190860199 Representative: Bui Manh Thang Adress: Civil Group 12, Tran Phu Ward, Ha Giang Town Tran Phu Ward, Ha Giang City, Ha Giang ProvinceFounding date: 27 - 8 - 2010