The 2021 International Congress on Ultrasonic in Beijing (2021 ICU Beijing ) is the eighth biennial meeting under the banner of International Congress on Ultrasonics (ICU) since the constitution of ICU in 2005, to be organized and hosted by ICU, the Acoustical Society of China and the Institute of Acoustics, Chinese Academy of Sciences. On behalf of the organizing committee, I would like to extend our cordial invitation to everyone in the ultrasonics community to this exciting upcoming event.

The Congress aims to bring together professionals and experts from academia, industry and government in all disciplines of ultrasonics, to exchange the achievements and experience in physical acoustics and the existing and emerging applications of ultrasounds in the field of medical diagnosis and therapy, nondestructive evaluation, petroleum exploration, etc. It will provide participants with a valuable venue for expending their international networks and a unique opportunity for exploring Beijing, a home to seven UNESCO world heritage sites.