Thuong Mai O Sin LTD Address: No 186, 354 Truong Chinh Lane, Khuong Thuong Ward, Dong Da District, Ha Noi City Enterprise code: 0102024842 Phone: 0248525554 Representative: Ha Quoc Anh Adress: No 186, 354 Truong Chinh Lane, Khuong Thuong Ward, Dong Da District, Ha Noi City Khuong Thuong Ward, Dong Da District, Ha Noi CityFounding date: 11 - 9 - 2006