Changchun Railway Vehicles
In 2014, Shenzhen Metro Group purchased 70 trains (420 carriages) from CNR Changchun Railway Vehicles for the future Line 7 and Line 9, in which Line 7 will use 41 while Line 9 will use 29. The first train arrived in mid-March 2016. 17 trains will assume operations when the line first opens to passengers, departing every 6–8 minutes.