Dau Tu Va Phat Trien Ha Tang Ky Son Joint Stock Company Address: Lien Ke 10 -Da Hop 6 Tang, Huu Nghi Street, Civil Group 12, Hoa Binh Ward, Tinh Phu Tho, Viet Nam Enterprise code: 5400568011 Phone: 0989791924 Representative: Nguyen Kha Hoa Phu Tho ProvinceFounding date: 30 - 1 - 2026