Khai Thac Khoang San Tien Minh Joint Stock Company Address: Na Pan Hamlet, Hoa Tham Commune, Binh Gia District, Lang Son Province Enterprise code: 4900741537 Phone: 0976032567 Representative: Ly Van Thang Adress: Van Mich Hamlet, Hong Phong Commune, Binh Gia District, Lang Son Province Hoa Tham Commune, Binh Gia District, Lang Son ProvinceFounding date: 20 - 7 - 2012