Bac Thang Long LTD Address: Go Bong Hamlet, Minh Quan Commune, Tran Yen District, Yen Bai Province Enterprise code: 5200281163 Phone: 02163852340 Representative: Nguyen Anh Duc Adress: Khu Cho, Van Noi Commune, Dong Anh District, Ha Noi City Minh Quan Commune, Tran Yen District, Yen Bai ProvinceFounding date: 24 - 10 - 2007