Ob Joint Stock Company Address: No 2 Lang Yen, Bach Dang Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0101547254 Phone: 0246228027 Representative: Nguyen Thi Hong Ha Adress: No 9 Trang Tien, Hoan Kiem District, Ha Noi City Bach Dang Ward, Hai Ba Trung District, Ha Noi CityFounding date: 27 - 10 - 2004