Hai Son LTD Address: Duong O Quarter, Phong Khe Ward, Bac Ninh City, Bac Ninh Province Enterprise code: 2300425367 Phone: 02222211999 Representative: Ngo Nhu Hai Adress: Duong O Quarter, Phong Khe Ward, Bac Ninh City, Bac Ninh Province Bac Ninh City, Bac Ninh ProvinceFounding date: 25 - 4 - 2009