Hat Kiem Lam Huyen Van Yen Address: Quarter 2, Mau A Town, Van Yen District, Yen Bai Province Enterprise code: 5200455035 Phone: 02163834135 Representative: Nguyen Tien Thanh Adress: Quarter 2, Mau A Town, Van Yen District, Yen Bai Province Mau A Town, Van Yen District, Yen Bai ProvinceFounding date: 21 - 8 - 2009