Tu Van Va Xay Dung Ngoc Ha Joint Stock Company Address: No 22, Lane 177, Dinh Cong Street, Dinh Cong Ward, Hoang Mai District, Ha Noi City Enterprise code: 0101362207 Phone: 0248552249 Representative: Tran Xuan Mao Adress: Vu Xuyen Hamlet, Yen Duong Commune, Y Yen District, Nam Dinh Province Dinh Cong Ward, Hoang Mai District, Ha Noi CityFounding date: 20 - 5 - 2003