China Unicom has deployed a 5G network in an area of Shenzhen called the Qianhai-Shekou Free Trade Zone. This makes China one of only 3 countries with the new generation of wireless networks. The carrier is now planning exhibitions of 5G applications in the Zone.
https://www.notebookcheck.net/Shenzhen-becomes-first-Chinese-city-to-get-5G.419297.0.html