Khoang San Thien Thanh Joint Stock Company Address: No 404, Dinh Tien Hoang Street, Civil Group 45, Yen Thinh Ward, Yen Bai City, Yen Bai Province Enterprise code: 5200595177 Phone: 0906226091 Representative: Nguyen Thuy Ha Adress: No 28, Dien Bien Phu Street, Dien Bien Ward, Ba Dinh District, Ha Noi City Yen Thinh Ward, Yen Bai City, Yen Bai ProvinceFounding date: 7 - 12 - 2010