Sach, Thiet Bi Giao Duc Va Truyen Thong Dai Viet LTD Address: No 46B, Alley 7, Lane 18, Ta Street, Thanh Oai District, Ha Noi City Enterprise code: 0111608925 Phone: 0975835032 Representative: Nguyen Thi Oanh Dai Thanh Commune, Thanh Tri District, Ha Noi CityFounding date: 18 - 8 - 2026