Phan Mem Hellotech LTD Address: Zoom 5020, 5th Floor, Vuon Xuan Building, Lang Ha Ward, Dong Da District, Ha Noi City Enterprise code: 0105680962 Phone: 02462770767 Representative: Vu Van Quang Adress: Thuong Hamlet, Dong Du Commune, Gia Lam District, Ha Noi City Lang Ha Ward, Dong Da District, Ha Noi CityFounding date: 1 - 12 - 2011