Dien Tu Tin Hoc Vinh Khanh Joint Stock Company Address: No 57 Le Loi, May To Ward, Ngo Quyen District, Hai Phong City Enterprise code: 0200600597 Phone: 02253832123 Representative: Pham Ngoc Long Adress: No 57 Le Loi, May To Ward, Ngo Quyen District, Hai Phong City May To Ward, Ngo Quyen District, Hai Phong CityFounding date: 11 - 10 - 2004