Hoan Cau LTD Address: 168/189 Nguyen Ngoc Vu, Cau Giay District, Ha Noi City Enterprise code: 0100412078 Phone: 0248583110 Representative: Nguyen Khac Minh Adress: Mai Phuc Gia Thuy Gia Lam Hamlet, Gia Lam District, Ha Noi City Cau Giay District, Ha Noi CityFounding date: 9 - 7 - 1998