Calla Holding Joint Stock Company Address: No 33a, Lane 399, Au Co Street, Nhat Tan Ward, Tay Ho District, Ha Noi City Enterprise code: 0109931790 Phone: 0989689868 Representative: Nguyen Viet Hung Adress: P5-C13 Kim Lien, Kim Lien Ward, Dong Da District, Ha Noi City Nhat Tan Ward, Tay Ho District, Ha Noi CityFounding date: 16 - 3 - 2022