Dau Tu Va Xay Dung Hoang Son LTD Address: Zoom 116, Nha B7 Khu, Vinh Ho Town, Vinh Ho Street, Nga Tu So Ward, Dong Da District, Ha Noi City Enterprise code: 0101160458 Phone: 0245638871 Representative: Nguyen Phuc Thien Adress: P 4, K12, Ho Dac Di Street, Dong Da District, Ha Noi City Nga Tu So Ward, Dong Da District, Ha Noi CityFounding date: 10 - 9 - 2001