Tu Van Giam Sat Chat Luong Cong Trinh Thang Long Joint Stock Company Address: No 33, Dich Vong Street, Dich Vong Ward, Cau Giay District, Ha Noi City Enterprise code: 0104478351 Phone: 02438330026 Representative: Nguyen Duy Anh Adress: No 18, 91 Tran Duy Hung Lane, Trung Hoa Ward, Cau Giay District, Ha Noi City Dich Vong Ward, Cau Giay District, Ha Noi CityFounding date: 9 - 2 - 2010