China’s unmanned submersible Hailong 11000 („Sea Dragon“) has recently set a record by diving 5,630 m during tests in the northwestern Pacific Ocean. Carried by the Chinese research vessel Dayang Yihao, or Ocean No.1, the submersible has also completed a series of tasks underwater for 13 hours, including a 4-hour observation. The submersible is a Chinese-developed remotely-operated vehicle able to work at a maximum depth of 11,000 meters below sea level. It will complete an 11,000-meter deep sea test by around 2020.
CAS news release, September 11, 2018