Tu Van Dau Tu Xay Dung Hoang Son Joint Stock Company Address: No 359, Civil Group 33, Khu Cau Sen, Yen Thanh Ward, Uong Bi City, Quang Ninh Province Enterprise code: 5701754727 Phone: 0908587662 Representative: Nguyen Kieu Bien Adress: No 143, Thanh Son Street, Thanh Son Ward, Uong Bi City, Quang Ninh Province Yen Thanh Ward, Uong Bi City, Quang Ninh ProvinceFounding date: 5 - 5 - 2015