Dau Tu Ngoc Khanh Joint Stock Company Address: Hamlet 11, Yen My Commune, Thanh Tri District, Ha Noi City Enterprise code: 0101687300 Phone: 0246812192 Representative: Tran Van Thang Adress: No 190, Khu 6, Thi Cau Ward, Bac Ninh City, Bac Ninh Province Yen My Commune, Thanh Tri District, Ha Noi CityFounding date: 23 - 6 - 2005