Giai Phap Cong Nghe Black Hole Joint Stock Company Address: No 777, Nguyen Thien Thuat Street, My Hao Ward, Tinh Hung Yen, Viet Nam Enterprise code: 0901214374 Phone: 02218579999 Representative: Vu Van Duy Hung Yen ProvinceFounding date: 20 - 10 - 2025