Dau Tu Va Phat Trien Xay Dung Ngoc Han Joint Stock Company Address: No 4, Alley 40, Lane 255, Nguyen Khang Street, Yen Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0105435953 Phone: 0989962311 Representative: Nguyen Van Hong Adress: No 146 Civil Group 10, Lang Thuong Ward, Dong Da District, Ha Noi City Yen Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 4 - 8 - 2011