An Vi 638 Joint Stock Company Address: No 31, Nguyen Gia Thieu Street, Hung Dung Ward, Vinh City, Nghe An Province Enterprise code: 2901422804 Phone: 02388686638 Representative: Nguyen Minh Hao. Adress: Khoi 6, Truong Thi Ward, Vinh City, Nghe An Province Hung Dung Ward, Vinh City, Nghe An ProvinceFounding date: 6 - 9 - 2011