Mr. Duong Minh Au is the director of Bach Khoa Construction Equipment Co., Ltd (BACH KHOA GEO). He graduated the Bachelor of Engineering in Surveying & Mapping and Master of Engineering in Geomatics Engineering at the Department of Geomatics Engineering, Ho Chi Minh city University of Technology, Vietnam. He has done or took part in with survey manager for many various important projects across Vietnam, Cambodia and Myanmar. His main research interest is: GPS/GNSS satellite positioning, hydrographic survey, side scan sonar survey, magnetometer survey or the others application with high accuracy.