Duyen Dung Address: No 10, Civil Group 9, Khu 3, Ha Tu Ward, Ha Tu Ward, Tinh Quang Ninh, Viet Nam Enterprise code: 5701305714 Phone: 0333637877 Representative: Hoang Van Duyen Ha Tu Ward, Ha Long City, Quang Ninh ProvinceFounding date: 16 - 8 - 2009