Cong Nghe Ky Thuat Vtech Joint Stock Company Address: No 5, Alley 21/1, Dang Thuy Tram Street, Dich Vong Hau Ward, Cau Giay District, Ha Noi City Enterprise code: 0106419672 Phone: 0904417060 Representative: Nguyen Huu Giang Adress: Dinh Bo Lane, Cho Hamlet, Dai Mo Commune, Tu Liem District, Ha Noi City Dich Vong Hau Ward, Cau Giay District, Ha Noi CityFounding date: 10 - 1 - 2014