Khoa Hoc Tre Ha Noi LTD Address: No 313, Hoang Cong Chat Street, Phu Dien Ward, Bac Tu Liem District, Ha Noi City Enterprise code: 0106477272 Phone: 02462947198 Representative: Dao Duy Thanh Adress: No 99, A11 Mai Huong, Bach Mai Ward, Hai Ba Trung District, Ha Noi City Phu Dien Ward, Bac Tu Liem District, Ha Noi CityFounding date: 10 - 3 - 2014