The Society for Underwater Technology (SUT), http://www.sut.org.uk/, is the world’s most influential academic organization for underwater engineering. It was established in 1966 and is headquartered in London, England. It is a multi-disciplinary society that gathers institutions and individuals concerned with underwater technology, marine science and ocean engineering. The six previous Annual SUT (China) Conferences have been successfully held in: >>Shenzhen, 2012 >>Shanghai, 2013 >>Qingdao, 2014 >>Beijing, 2015 >>Beijing, 2016 >>Haikou, 2017 The biennial China-Brazil Deepwater Forum was initiated by China University of Petroleum (Beijing) and the Federal University of Rio de Janeiro, Brazil. The inaugural forum was held in Rio de Janeiro in 2016.