Kien Truc Vieger LTD Address: No 181, Le Duan Street, Civil Group 1, Chieng Sinh Ward, Son La City, Son La Province Enterprise code: 5500683025 Phone: 0823906469 Representative: Nguyen Vinh Quang Chieng Sinh Ward, Son La City, Son La ProvinceFounding date: 16 - 3 - 2026