Dau Tu Phat Trien Cong Nghe Va Thuong Mai Van Truong LTD Address: Khu Rang Thong, Quang Yen Ward, Quang Yen Town, Quang Ninh Province Enterprise code: 5701475466 Phone: 02033547660 Representative: Hoang Van Truong Adress: Khu Chua Bang, Quang Yen Ward, Quang Yen Town, Quang Ninh Province Quang Yen Ward, Quang Yen Town, Quang Ninh ProvinceFounding date: 31 - 3 - 2011