Dau Tu Ky Thuat DK7 Joint Stock Company Address: No 286, Quang Ttrung, Phu Hai Ward, Dong Hoi City, Quang Binh Province Enterprise code: 3101117881 Phone: 0905821899 Representative: Phan Ngoc Du Phu Hai Ward, Dong Hoi City, Quang Binh ProvinceFounding date: 12 - 8 - 2022