Huyen Doan Hoang Hoa Address: Tieu Khu Dao Son, But Son Town, Hoang Hoa District, Thanh Hoa Province Enterprise code: 2801383862 Phone: 02373865147 Adress: Hoang Hoa District, Thanh Hoa Province But Son Town, Hoang Hoa District, Thanh Hoa ProvinceFounding date: 21 - 5 - 2009