Tu Van Khao Sat Thiet Ke Va Thuong Mai Ha Thanh Joint Stock Company Address: No 43, Lane 84, Ngoc Khanh Street, Ba Dinh District, Ha Noi City Enterprise code: 0104828743 Phone: 0913523868 Representative: Bui Son Tung Adress: No 43, Lane 84, Ngoc Khanh Street, Ba Dinh District, Ha Noi City Ba Dinh District, Ha Noi CityFounding date: 27 - 7 - 2010