Dau Tu Ky Tam Cao Son Joint Stock Company Address: Van Phong Cong Ty Than Cao Son, Cam Son Ward, Cam Pha City, Quang Ninh Province Enterprise code: 5700702821 Phone: 0203862210 Representative: Nguyen Ba Hung Adress: Civil Group 7, Cam Binh Ward, Cam Pha City, Quang Ninh Province Cam Son Ward, Cam Pha City, Quang Ninh ProvinceFounding date: 18 - 12 - 2007