Trung Tam Giao Duc Thuong Xuyen Huyen Trang Dinh Address: Bo Po, Dai Dong Commune, Trang Dinh District, Lang Son Province Enterprise code: 4900265172 Phone: 0205883863 Representative: Vy Thi Oanh Dai Dong Commune, Trang Dinh District, Lang Son ProvinceFounding date: 28 - 12 - 2007