Hoang Hau Smart Lock LTD Address: K4h2/5a Nguyen Sinh Sac, Hoa Khanh Ward, Da Nang Town, Viet Nam, Da Nang City Enterprise code: 0402305273 Phone: 0981581914; Representative: Pham Van Hoang Hoa Khanh Ward, Hoa Vang District, Da Nang CityFounding date: 27 - 10 - 2025