Toa An Nhan Dan Huyen Van Yen Address: Khu Ii, Mau A Town, Van Yen District, Yen Bai Province Enterprise code: 5200450580 Phone: 02163834111 Representative: Nguyen Manh Thang Adress: Mau A Town, Van Yen District, Yen Bai Province Mau A Town, Van Yen District, Yen Bai ProvinceFounding date: 5 - 8 - 2009