Doi Quan Ly Va Xay Dung Giao Thong Address: Civil Group 6, Yen The Town, Luc Yen District, Yen Bai Province Enterprise code: 5200418844 Phone: 02163845214 Yen The Town, Luc Yen District, Yen Bai ProvinceFounding date: 17 - 6 - 2009