Khai Thac Khoang San Vang Ha Giang Joint Stock Company Address: Hong Thai Hamlet, Viet Hong Commune, Bac Quang District, Ha Giang Province Enterprise code: 5100309601 Phone: 02193821488 Representative: Pham Thanh Hung Adress: Civil Group 58, Khu 7, Cam Thanh Ward, Cam Pha City, Quang Ninh Province Viet Hong Commune, Bac Quang District, Ha Giang ProvinceFounding date: 17 - 9 - 2009