Tu Van Xay Dung Thanh Oanh Joint Stock Company Address: Civil Group 6, Khu 7, Hong Hai Ward, Ha Long City, Quang Ninh Province Enterprise code: 5700642442 Phone: 0203824808 Representative: Bui Thi Hai Yen Adress: Civil Group 6, Khu 7, Hong Hai Ward, Ha Long City, Quang Ninh Province Hong Hai Ward, Ha Long City, Quang Ninh ProvinceFounding date: 29 - 3 - 2007