Tu Van Va Dau Tu Xay Dung Ota Joint Stock Company Address: No 45, Lane 2, Nguyen Viet Xuan Street, Khuong Mai Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0108324698 Phone: 02435659109 Representative: Nguyen Cuong Khuong Mai Ward, Thanh Xuan District, Ha Noi CityFounding date: 15 - 6 - 2018