Giai Phap Va Cong Nghe Phu Tung O To Mast Joint Stock Company Address: No 30-32, Lang Yen Street, Hong Ha Ward, Ha Noi Town, Viet Nam, Ha Noi City Enterprise code: 0111150699 Phone: 02439766766 Representative: Ho Khac Hung Ha Noi CityFounding date: 25 - 7 - 2025