TT Hoang Mai LTD Address: No 51 Tran Nhan Tong, Bui Thi Xuan Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0107697714 Phone: 02438243751 Representative: Do Duc Huy Bui Thi Xuan Ward, Hai Ba Trung District, Ha Noi CityFounding date: 9 - 1 - 2017