PHL-16 MRL confirmed in service in Xinjiang earlier this week.
Basically, this started out as the AR-3 commercial/export MRL by NORINCO back in 2010.
It wasn't actually shown in Chinese service until the 2019 National Day Parade; where unlabelled units paraded.
The PHL-16 appears to be the replacement for the earlier 12x300mm PHL-03 MRL.
What makes the PHL-16 different is that the PHL-16 has two modular launch cells; with each cell carrying either:
5 x 300mm Rockets
4 x 370mm Rockets
The export version (AR-3) offers:
750mm Fire Dragon 480 Tactical Ballistic Missile
380mm TL-7B Anti Ship Missile
But it's not known if the PLA(N) bought these.
BTW -- Chinese Unit 742 A-100 Platoon is incorrect.
The PLA tested out the A-100 in trials in the early 2000s; but it wasn't selected for service with the PLA; that honor going to the PHL-03 (Type 03) system. However, if you want to keep it without deleting the unit entry; may I suggest changing the exit date to December 2003; so that the A-100 can represent the "trials" vehicles.