Hop Tac Xa Dich Vu Tong Hop Hoi Thao Address: Cau A Hamlet, Mau A Town, Van Yen District, Yen Bai Province Enterprise code: 5200793524 Phone: 097642958 Representative: Tran Van Thao Adress: Cau A Hamlet, Mau A Town, Van Yen District, Yen Bai Province Mau A Town, Van Yen District, Yen Bai ProvinceFounding date: 13 - 12 - 2012