Viet Bach Address: Ba Nha Hamlet, Yen Son Commune, Quoc Oai District, Ha Noi City Enterprise code: 0500411424 Phone: 0979848316 Representative: Bui Thi Oanh Adress: Ba Nha Hamlet, Yen Son Commune, Quoc Oai, HN, Quoc Oai District, Ha Noi City Yen Son Commune, Quoc Oai District, Ha Noi CityFounding date: 7 - 11 - 2001