Khai Thac Va Che Bien Khoang San Bac Giang Joint Stock Company Address: Cau Sat Hamlet, Son Hai Commune, Luc Ngan District, Bac Giang Province Enterprise code: 0103003517 Phone: 02043518073 Representative: Pham Hong Thang Son Hai Commune, Luc Ngan District, Bac Giang ProvinceFounding date: 10 - 11 - 2008