J-One LTD Address: Hoang Mai Hamlet, Hoang Ninh Commune, Hoang Ninh Commune, Viet Yen District, Bac Giang Province Enterprise code: 2400298930 Phone: 02043661380 Representative: Jeong Daemin Adress: 161, Cau Giay, Cau Giay District, Ha Noi City Hoang Ninh Commune, Viet Yen District, Bac Giang ProvinceFounding date: 15 - 12 - 2004