HTX Hoai Trang Address: Chang Hamlet, Dinh Phong, Trung Khanh, Cao Bang, Trung Khanh District, Cao Bang Province Enterprise code: 4800686177 Phone: 0972560514 Adress: Trung Khanh District, Cao Bang Province Trung Khanh Town, Trung Khanh District, Cao Bang ProvinceFounding date: 22 - 12 - 2010