Hoan Thien Joint Stock Company Address: No 24, La Thanh Street, Giang Vo Ward, Giang Vo Ward, Ba Dinh District, Ha Noi City Enterprise code: 0101887613 Phone: 01687285999; 0387285999 Representative: Nguyen Thi Hien Adress: No 247, Kham Thien Street, Tho Quan Ward, Dong Da District, Ha Noi City Giang Vo Ward, Ba Dinh District, Ha Noi CityFounding date: 13 - 3 - 2006