Khao Sat Va Do Dac Ha Dong - Chi Nhanh Van Phong Do Dac 77 Joint Stock Company Address: No 234, Quang Trung Street, Nam Hong Linh Ward, Tinh Ha Tinh, Viet Nam Enterprise code: 0104228739-021 Phone: 0796530379 Representative: Nguyen Minh Tuan Nam Hong Linh Ward, Hong Linh Town, Bac Ninh ProvinceFounding date: 5 - 1 - 2026