Khoang San Trung Hai Joint Stock Company Address: Tieu Khu 14 (NHA ONG DUONG MANH Hien), Luong Son Town, Huyen Luong Son, Hoa Binh Enterprise code: 5400255668 Phone: 0979356999 Representative: Nguyen Thi Mao Adress: No 5B Hoang Hoa Tham, Buoi Ward, Tay Ho District, Ha Noi City Luong Son Town, Luong Son District, Hoa Binh ProvinceFounding date: 19 - 4 - 2007