Khai Thac Che Bien Khoang San Song Lo Joint Stock Company Address: Cau Gao Hamlet, Tan Lap Commune, Song Lo District, Vinh Phuc Province Enterprise code: 2500405939 Phone: 02113893227 Representative: Nguyen Thanh Cong Adress: Hamlet 2, Giang Cao Hamlet, Bat Trang Commune, Gia Lam District, Ha Noi City Tan Lap Commune, Song Lo District, Vinh Phuc ProvinceFounding date: 23 - 6 - 2010