Tu Van Dau Tu Xay Dung Quang Son Joint Stock Company Address: Civil Group 7, Khu 4, Hoang Van Thu Street, Ha Lam Ward, Ha Long City, Quang Ninh Province Enterprise code: 5701484936 Phone: 0243837988 Representative: Ninh Quang An Adress: Civil Group 8, Khu Nam Son, Nam Khe Ward, Uong Bi City, Quang Ninh Province Ha Lam Ward, Ha Long City, Quang Ninh ProvinceFounding date: 9 - 5 - 2011