Hoang Quoc LTD Address: No 104 C9B Nghia Tan, Nghia Tan Ward, Cau Giay District, Ha Noi City Enterprise code: 0100281428 Phone: 0248317421 Representative: Do Quoc Chinh Adress: No 138 Yen Thai, Buoi Ward, Tay Ho District, Ha Noi City Founding date: 29 - 7 - 1998