Dau Tu Va San Xuat Hoang Sa Joint Stock Company Address: Hang Gau Hamlet, Hamlet 7, Chang Son Commune, Thach That District, Ha Noi City Enterprise code: 0107747933 Phone: 0938895622 Representative: Dao Duc Hiep Adress: 2nd Floor, No 26y4, Yen Hoa Street, Yen Hoa Ward, Cau Giay District, Ha Noi City Chang Son Commune, Thach That District, Ha Noi CityFounding date: 7 - 3 - 2017