Cong Nghe Giao Duc Hoan Hao Joint Stock Company Address: Duc Noi Hamlet, Viet Hung Commune, Dong Anh District, Ha Noi City Enterprise code: 0105906673 Phone: 0243881772 Representative: Nguyen Cao Bang Viet Hung Commune, Dong Anh District, Ha Noi CityFounding date: 4 - 6 - 2012