Polymath LTD Address: No 19a, Khu Tap The Cong An Da Sy, Kien Hung Ward, Ha Dong District, Ha Noi City Enterprise code: 0107082911 Phone: 0948383327 Representative: Do Tu Anh Adress: Cho Hamlet, Binh Minh Commune, Thanh Oai District, Ha Noi City Kien Hung Ward, Ha Dong District, Ha Noi CityFounding date: 5 - 11 - 2015