Kuala Lumpur, 4 March 2020. The Tan Sri Haji Yusoff Prize, IEM outstanding technical paper 2020 was won by our senior director, Ir. Liew Shaw Shong  for his paper entitled “Common Blind Spots in Ground Investigation, Design, Construction, Performance Monitoring and Feedbacks in Geotechnical Engineering”, presented in a lecture for 50th Anniversary Symposium of SEAGS