Thuong Mai Va Xay Dung Hoang Son LTD Address: No 65 Nguyen Van Cu, Ngoc Lam Ward, Long Bien District, Ha Noi City Enterprise code: 0101979504 Phone: 0917114665 Representative: Vu Thi Nga Adress: No 39 K7, Bach Khoa Ward, Hai Ba Trung District, Ha Noi City Ngoc Lam Ward, Long Bien District, Ha Noi CityFounding date: 26 - 6 - 2006