Tu Van Thiet Ke Va Xay Dung G81 Joint Stock Company Address: Zoom 301, 3rd Floor, Cau Thang 1, Khu Tap The Chung Cu Lan Be, Bach Dang Ward, Ha Long City, Quang Ninh Province Enterprise code: 5701326182 Phone: 02033816950 Representative: Trinh Quoc Trong Adress: Civil Group 9, Khu 7a, Bai Chay Ward, Ha Long City, Quang Ninh Province Bach Dang Ward, Ha Long City, Quang Ninh ProvinceFounding date: 11 - 10 - 2009