Phat Trien Dich Vu Viet Dong A Joint Stock Company Address: No 1/20, Lane 345, Khuong Trung Street, Khuong Dinh Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0106056563 Phone: 02439948361 Representative: Luu Thi Hong Nga Khuong Dinh Ward, Thanh Xuan District, Ha Noi CityFounding date: 6 - 12 - 2012