Katahira & Engineers International NB Thau Chinh GT Ramcs6 Daql Tai San Duong Bo VN (Vramp) Address: 9th Floor, Song Hong So 45 Tran Thai Tong Building, Dich Vong Hau Ward, Cau Giay District, Ha Noi City Enterprise code: 0107269980 Phone: 02432262349 Dich Vong Hau Ward, Cau Giay District, Ha Noi CityFounding date: 25 - 12 - 2015