Dau Tu Cong Nghe Bac Nam 637 Joint Stock Company Address: No 31, 466 De La Thanh Lane, Cat Linh Ward, Dong Da District, Ha Noi City Enterprise code: 0109947462 Phone: 02373731637 Representative: Nguyen Quoc Duy Cat Linh Ward, Dong Da District, Ha Noi CityFounding date: 28 - 3 - 2022