Phat Trien Ha Tang X4 Joint Stock Company Address: P207, Thap B2, Roman Building, To Huu Street, Dai Mo Ward, Ha Noi Town, Viet Nam, Ha Noi City Enterprise code: 0111567066 Phone: 0948562666 Representative: Nguyen Manh Cuong Dai Mo Ward, Nam Tu Liem District, Ha Noi CityFounding date: 10 - 7 - 2026