4core Tek Engineering LTD Address: No 2, Lane 27, Thanh Dam Street, Vinh Hung Ward, Hoang Mai District, Ha Noi City Enterprise code: 0111397985 Phone: 0338277519 Representative: Pham Tuan Vu Vinh Hung Ward, Hoang Mai District, Ha Noi CityFounding date: 3 - 3 - 2026