Tu Van Xay Dung Va Thuong Mai Tong Hop Qyb Joint Stock Company Address: Civil Group 2, Quarter 3, Mau A Town, Van Yen District, Yen Bai Province Enterprise code: 5200278026 Phone: 02163834269 Representative: Luong Yen Linh Adress: No 415, Dien Bien Street, Yen Ninh Ward, Yen Bai City, Yen Bai Province Mau A Town, Van Yen District, Yen Bai ProvinceFounding date: 30 - 8 - 2007