Vien Kiem Sat Nhan Dan Quan Do Son Address: No 9 Ly Thanh Tong, Van Son, Do Son District, Hai Phong City Enterprise code: 0200985192 Phone: 02253861409 Representative: Tran Viet Tu Van Son Ward, Do Son District, Hai Phong CityFounding date: 22 - 9 - 2009