Koen LTD Address: No 32, Yen So Street, Yen So Ward, Hoang Mai District, Ha Noi City Enterprise code: 0106864271 Phone: 0913513463 Representative: Le Huu Phong Adress: No 32, Yen So Street, Yen So Ward, Hoang Mai District, Ha Noi City Yen So Ward, Hoang Mai District, Ha Noi CityFounding date: 29 - 5 - 2015