Tu Van Thiet Ke Va Dau Tu Trung Son Joint Stock Company Address: No 14, 106/5 Hoang Quoc Viet Lane, Nghia Tan Ward, Cau Giay District, Ha Noi City Enterprise code: 0106247399 Phone: 02466617500 Representative: Trinh Trung Kien Adress: Thuong 2 Hamlet, Khanh Hoa Commune, Yen Khanh District, Ninh Binh Province Nghia Tan Ward, Cau Giay District, Ha Noi CityFounding date: 31 - 7 - 2013