Xay Dung, Thuong Mai Va Dich Vu So 4 Joint Stock Company Address: No 50, Lane 191/38, Lac Long Quan Street, Nghia Do Ward, Cau Giay District, Ha Noi City Enterprise code: 0101585122 Phone: 0913526811 Representative: Nguyen Thuong Hung Adress: Zoom 204, Nha K4, Khu Hao Nam, Cat Linh Ward, Dong Da District, Ha Noi City Nghia Do Ward, Cau Giay District, Ha Noi CityFounding date: 21 - 12 - 2004