This is a new frigate demonstrator built by CSIC China Shipbuiding Industry Group Co. Ltd.

History of this vessel

First spotted at Liaonan Shipyard in November 2023, it is most likely an experimental platform built for the Chinese Navy to test novel technologies.
Small as it seems, it boards a stealth main gun, a fully functioning VLS system, and literally anything you would expect to see on a destroyer no less than 5000 tons (Despite being only 1/3 the size).

Controls:

AG1: main gun autoaim (adjust by Trim and VTOL)
AG2: HHQ AntiAir Missile
AG4: YJ missile
AG5: hangar
AG6: lights.
Pitch and Roll to go.

Photos

Reference