Son Hoang Address: No 1, Bich Cau Street, Quoc Tu Giam Ward, Dong Da District, Ha Noi City Enterprise code: 0100933433 Phone: 0247321442 Representative: Do Thi Thu Huong Adress: A2, F14, Giang Vo Town, Ba Dinh District, Ha Noi City Quoc Tu Giam Ward, Dong Da District, Ha Noi CityFounding date: 20 - 9 - 1999