Dau Tu Xay Dung Quynh Son Joint Stock Company Address: No 124, Civil Group 18, Sai Dong Street, Sai Dong Ward, Long Bien District, Ha Noi City Enterprise code: 0101449761 Phone: 0248753479 Representative: Nguyen Ngoc Lan Adress: No 112, Le Loi Street, Nguyen Trai Ward, Ha Dong District, Ha Noi City Sai Dong Ward, Long Bien District, Ha Noi CityFounding date: 9 - 3 - 2004