Tu Van Khao Sat Thiet Ke Va Kiem Dinh Xay Dung Ngoc Mai Joint Stock Company Address: 1C Cum 5 Civil Group, Bac Son Ward, Kien An District, Hai Phong City Enterprise code: 0200917587 Phone: 02256250038 Representative: Le Van Hao Adress: Moi Hamlet, Hong Thai Commune, An Duong District, Hai Phong City Bac Son Ward, Kien An District, Hai Phong CityFounding date: 16 - 5 - 2009