O To Bao Khoa Joint Stock Company Address: 499 Nguyen Huu Tho, Khue Trung Ward, Cam Le District, Da Nang City Enterprise code: 0401405807 Phone: 0913477669 Representative: Ngo Tan Nhi Adress: 188/28 Ong Ich Khiem, Nam Duong Ward, Hai Chau District, Da Nang City Khue Trung Ward, Cam Le District, Da Nang CityFounding date: 21 - 1 - 2011