Tu Van Va Xay Dung Sigma Joint Stock Company Address: No 14B/52 Pham Huu Dieu, Niem Nghia Ward, Le Chan District, Hai Phong City Enterprise code: 0202175267 Phone: 0914294133 Representative: Nguyen Thi Hoa Adress: No 14B/52 Pham Huu Dieu, Niem Nghia Ward, Le Chan District, Hai Phong City Niem Nghia Ward, Le Chan District, Hai Phong CityFounding date: 30 - 9 - 2022