Son O To Ha Noi Joint Stock Company Address: No 703, Nguyen Khoai Street, Thanh Tri Ward, Hoang Mai District, Ha Noi City Enterprise code: 0101286242 Phone: 02436443888 Representative: Dinh Quang Lap Thanh Tri Ward, Hoang Mai District, Ha Noi CityFounding date: 25 - 9 - 2002