Phat Trien Dich Vu Dac Chung LTD Address: Hamlet 1, Co Ngua Giap Nhi Hamlet, Thinh Liet Commune, Thanh Tri District, Ha Noi City Enterprise code: 0101374795 Phone: 0248611170 Thanh Tri District, Ha Noi CityFounding date: 18 - 6 - 2003