Tham Do Khai Thac Dau Khi (Lo 148 & 149) Address: 26th Floor, Charm Vit Building, 117 Tran Duy Hung, Trung Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0311939392 Phone: 02437726027 Representative: Do Van Khanh Adress: 117 Tran Duy Hung, Cau Giay District, Ha Noi City Trung Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 21 - 8 - 2012