Dau Tu Va Thiet Ke Econtec VN Joint Stock Company Address: No 57, Lane 124, Au Co Street, Tu Lien Ward, Tay Ho District, Ha Noi City Enterprise code: 0105950305 Phone: 02462698639 Representative: Nguyen Thi Ngoc Anh Adress: Zoom 510 B8B, Kim Lien Town, Kim Lien Ward, Dong Da District, Ha Noi City Tu Lien Ward, Tay Ho District, Ha Noi CityFounding date: 23 - 7 - 2012