Ky Thuat Cong Nghe Duc An LTD Address: Hamlet 4, Xuan Tri Hamlet, Hong Chau Commune, Hai Phong City, Viet Nam, Hai Phong City Enterprise code: 0801467854 Phone: 0352859316 Representative: Bui Thi Ngoc Hai Phong CityFounding date: 9 - 9 - 2025