Tu Van Thiet Ke Yen Hoa 77 Joint Stock Company Address: No 5B, Lane 77, Yen Hoa Street, Yen Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0106811061 Phone: 02462916446 Representative: Nguyen Van Duy Adress: Khu 1, Le My Commune, Phu Ninh District, Phu Tho Province Yen Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 6 - 4 - 2015