Duong Son Address: 20 Loc Phuoc Civil Group, Tho Quang, Son Tra District, Da Nang City Enterprise code: 0400551629 Phone: 02156920582 Representative: Nguyen Thi Su Adress: 150 Le Van Hien, Ngu Hanh Son District, Da Nang City Tho Quang Ward, Son Tra District, Da Nang CityFounding date: 23 - 10 - 2006