Tu Van Thiet Ke Xay Dung Nha Xanh LTD Address: 50 Quan Su, Hang Bong Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0102674840 Phone: 0249263897 Representative: Dao Ngoc Lan Adress: No 6, Hang Dau Street, Hang Bac Ward, Hoan Kiem District, Ha Noi City Hang Bong Ward, Hoan Kiem District, Ha Noi CityFounding date: 13 - 3 - 2008