Trong Dai Joint Stock Company Address: Ngoc Chi Hamlet, Vinh Ngoc Commune, Dong Anh District, Ha Noi City Enterprise code: 0101903590 Phone: 0248810150 Representative: Hoang Van Chien Adress: Ngoc Chi Hamlet, Vinh Ngoc Commune, Dong Anh District, Ha Noi City Vinh Ngoc Commune, Dong Anh District, Ha Noi CityFounding date: 3 - 4 - 2006