Another image of the Huangpu-build OPV for CCG at berth. Note rotating AESA on main mast. Image via Chinese social media.
A Naval News post, “New Offshore Patrol Vessel launched for China Coast Guard,” actually includes information about more than one new class of China Coast Guard cutters.
Notably, these new ships all have 76mm guns and modern multi-mode radars.
Looking at the photo below, I have used the same caption that is included in the post, and added some links, but it really appears too small to be based on the Type 052D destroyer design which is over 500 feet long and 7500 tons full load.
Take a look.
The Type 052D-derived CCG hull at Jiangnan. Note Type 382 radar on main mast, H/PJ-26 main gun, sizeable aviation hangar. Image Chinese social media.
Chuck Hill's CG Blog 
Their “coast guard” ships sure seem heavy. Wonder where the weight goes, especially for the 10,000 ton ones
Andrew
Two possible explanations. Prestige and they want to win the bumper boats competition.
I think this may be the ship the new CCG cutter in the lower photo may be based on. https://interestingengineering.com/military/china-deploys-5000-ton-frigate?fbclid=IwY2xjawKHHaJleHRuA2FlbQIxMQBicmlkETFMcFBuRDJNNGYyTGVhVkJyAR5DP_Bv5wiVgAXzgz65fOPhVFUaHKrzqUGE3YunTCOMw_fpd2dzQ5j2SArBSQ_aem_vkYZEZvAWuaCf9icOD029Q
If so it is only a little larger than the NSCs or OPCs.