Xay Dung & Ky Thuat Viettech LTD Address: No 30, Lane 908/36, Kim Giang Street, Thanh Liet Ward, Thanh Tri District, Ha Noi City Enterprise code: 0111406862 Phone: 0972562402 Representative: Pham Ngoc Tien Thanh Tri District, Ha Noi CityFounding date: 11 - 3 - 2026