Dich Vu Vien Thong Huyen Van Yen LTD Address: No 211a, Ly Thuong Kiet Street, Civil Group 1, Quarter 3, Mau A Town, Van Yen District, Yen Bai Province Enterprise code: 5200809799 Phone: 0965278222 Representative: Hoang Tien Lam Adress: Civil Group 1, Quarter 3, Mau A Town, Van Yen District, Yen Bai Province Mau A Town, Van Yen District, Yen Bai ProvinceFounding date: 6 - 5 - 2014