Doi Cong Trinh Giao Thong Van Tai Va Ve Sinh Moi Truong Huyen Yen Binh Tinh Yen Bai Address: Yen Binh Town, Yen Binh District, Yen Bai Province Enterprise code: 5200159928 Phone: 0216885485 Yen Binh Town, Yen Binh District, Yen Bai ProvinceFounding date: 8 - 4 - 1999