Nippon Koei Co, Ltd- Du An Thoat Nuoc Ha Noi. Giai Doan I Address: 2 Ngo Quyen, Hoan Kiem District, Ha Noi City Enterprise code: 0101188083 Phone: 0249340747 Hoan Kiem District, Ha Noi CityFounding date: 12 - 12 - 2001