Dien Tu Tin Hoc Ho Sen Joint Stock Company Address: No 10 Ho Sen, Trai Cau Ward, Le Chan District, Hai Phong City Enterprise code: 0200587258 Phone: 02253610527 Representative: Ha Thi Phuong Loan Adress: No 10 Ho Sen, Trai Cau Ward, Le Chan District, Hai Phong City Trai Cau Ward, Le Chan District, Hai Phong CityFounding date: 15 - 6 - 2004