Dau Tu Xay Dung Worldtech LTD Address: Hamlet 5, Lai Xa, Kim Chung Commune, Hoai Duc District, Ha Noi City Enterprise code: 0105565705 Phone: 0977126189 Representative: Nguyen Xuan Chinh Adress: Dung Tien Hamlet, Huong Gian Commune, Yen Dung District, Bac Giang Province Kim Chung Commune, Hoai Duc District, Ha Noi CityFounding date: 13 - 10 - 2011