Chi Nhanh Cong Ty Xay Dung Cong Trinh 507 Address: 39 Khu 6 Civil Group, Yet Kieu Ward, Ha Long City, Quang Ninh Province Enterprise code: 5700478295 Phone: 02143629427 Yet Kieu Ward, Ha Long City, Quang Ninh ProvinceFounding date: 14 - 1 - 2004