Duyen Son LTD Address: Phuong Dong, Bo Ha, Yen The District, Bac Giang Province Enterprise code: 2400353349 Phone: 02048775870 Representative: Nguyen Van Chinh Adress: Ngo, Dong Ky, Yen The District, Bac Giang Province Bo Ha Commune, Yen The District, Bac Giang ProvinceFounding date: 25 - 4 - 2006