He Van Hoa - Doi Song - Khoa Giao Address: 41, 43 Ba Trieu, Hang Bai Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0102828642 Phone: 0249386456 Representative: Tran Thi Tri Adress: No 4, Alley 12, Lane 23, Xuan La Street, Tay Ho District, Ha Noi City Hang Bai Ward, Hoan Kiem District, Ha Noi CityFounding date: 23 - 7 - 2008