O To So 3 Joint Stock Company Address: Bien Giang Ward, Bien Giang Ward, Ha Dong District, Ha Noi City Enterprise code: 0500373320 Phone: 02433866072 Representative: Tran Van Hieu Adress: Phuong Bai Hamlet, Phung Chau Commune, Chuong My District, Ha Noi City Bien Giang Ward, Ha Dong District, Ha Noi CityFounding date: 20 - 7 - 2000