Tu Van Dich Vu Ky Thuat Dia Chat Dau Khi LTD Address: No 4 Nha A8a, Thanh Xuan Bac Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0101868811 Phone: 0245530030 Representative: Doan Tham Adress: 35, Lane 53/2, Nguyen Ngoc Vu Street, Cau Giay District, Ha Noi City Thanh Xuan Bac Ward, Thanh Xuan District, Ha Noi CityFounding date: 13 - 2 - 2006