Tu Van Khao Sat HD Joint Stock Company Address: No 5, Lane 142, Co Nhue Street, Co Nhue 2 Ward, Bac Tu Liem District, Ha Noi City Enterprise code: 0106177342 Phone: 0246822536 Representative: Du Manh Duoc Adress: Ha Hamlet, Lien Trung Commune, Dan Phuong District, Ha Noi City Co Nhue 2 Ward, Bac Tu Liem District, Ha Noi CityFounding date: 14 - 5 - 2013