The Old School Joint Stock Company Address: 5th Floor, No 8, Phan Van Truong, Dich Vong Hau Ward, Cau Giay District, Ha Noi City Enterprise code: 0110131950 Phone: 0973205311 Representative: Le Thi Thu Hang Adress: Doi Nhi Hamlet, Tien Son Commune, Duy Tien Town, Ha Nam Province Dich Vong Hau Ward, Cau Giay District, Ha Noi CityFounding date: 28 - 9 - 2022