Khai Thac Khoang San Quang Tri Joint Stock Company Address: Minh Phong Hamlet, Tuyen Hoa Commune, Tinh Quang Tri, Viet Nam Enterprise code: 3101161714 Phone: 0914815999 Representative: Nguyen Duc Trieu Tuyen Hoa Commune, Tuyen Hoa District, Quang Tri ProvinceFounding date: 24 - 9 - 2026