O To Hung Gia Thinh Joint Stock Company Address: No 52, Civil Group 7, Khu 5, Tran Hung Dao Ward, Ha Long City, Quang Ninh Province Enterprise code: 5701819614 Phone: 0978032166 Representative: Nguyen Manh Cam Adress: Civil Group 7, Khu 1, Ha Khau Ward, Ha Long City, Quang Ninh Province Tran Hung Dao Ward, Ha Long City, Quang Ninh ProvinceFounding date: 19 - 7 - 2016