Duoc Sinh Hoc Envina LTD Address: No 51, 521 Truong Dinh Lane, Tan Mai Ward, Hoang Mai District, Ha Noi City Enterprise code: 0110365109 Phone: 0912055511 Representative: Nguyen Huy Manh Tan Mai Ward, Hoang Mai District, Ha Noi CityFounding date: 25 - 5 - 2023