Chi Nhanh Da Nang 1- Cong Ty Co Phan Dau Tu Phat Trien Thuong Mai Thien Son Address: No 49, Le Duan Street, Phuong, Hai Chau District, Da Nang City Enterprise code: 0107139974-037 Phone: 0903549889 Representative: Nguyen Thi Hai Hai Chau Ward, Hai Chau District, Da Nang CityFounding date: 20 - 7 - 2026