Dich Vu Va Cong Nghe O To Sai Gon Joint Stock Company Address: 18 Phan Van Tri, Ward 10, Go Vap District, Ho Chi Minh City Enterprise code: 0309966670 Phone: 02839213969 Representative: Do Vu Dat Adress: Nam Du Ha Hamlet, Tran Phu Ward, Hoang Mai District, Ha Noi City Ward 10, Go Vap District, Ho Chi Minh CityFounding date: 16 - 4 - 2010