Be Tong Chem Yen Phong Joint Stock Company Address: No 9, Ke Gian Street, Dong Ngac Ward, Ha Noi Town, Viet Nam, Ha Noi City Enterprise code: 0111549229 Phone: 0967272590 Representative: Mai Van Dung Dong Ngac Ward, Bac Tu Liem District, Ha Noi CityFounding date: 25 - 6 - 2026