Van Phong Dai Dien So 1 � Cong Ty TNHH Ky Thuat Khao Sat Viet Address: 0312 - Sav4, 3rd Floor, Thap 04, The Sun Avenue Building, No 28, An Phu Ward, Thu Duc City, Ho Chi Minh City Enterprise code: 3502319892-002 Phone: 02589292969 Representative: Nguyen Thi Kim Xuyen An Phu Ward, Thu Duc District, Ho Chi Minh CityFounding date: 24 - 2 - 2025