Doanh Nghiep Xay Dung Tu Nhan Hoang Long Address: No 320, Street 15, Tan Thanh Ward, Dien Bien Phu City, Dien Bien Province Enterprise code: 5600159390 Phone: 0215828290 Tan Thanh Ward, Dien Bien Phu City, Dien Bien ProvinceFounding date: 5 - 5 - 2002