Dem Chau Au Joint Stock Company Address: Nha A3 Khu Quy Hoach 78, Trung Tien Lane, Kham Thien Street, Kham Thien Ward, Dong Da District, Ha Noi City Enterprise code: 0102324074 Phone: 02422409122 Representative: Tran Viet Ha Adress: P37 B2 Tap The Khuong Thuong, Trung Tu Ward, Dong Da District, Ha Noi City Kham Thien Ward, Dong Da District, Ha Noi CityFounding date: 25 - 7 - 2007