Bach Nghe Toan Cau Joint Stock Company Address: Ha Hoi Hamlet, Tan Lap Commune, Dan Phuong District, Ha Noi City Enterprise code: 0500530220 Phone: 02437676352 Representative: Tran Xuan Thuy Adress: A6, Tap The Dai Hoc Giao Thong, Ngoc Khanh Ward, Ba Dinh District, Ha Noi City Tan Lap Commune, Dan Phuong District, Ha Noi CityFounding date: 10 - 10 - 2006