Someone mentioned the operational cost of launching LM is cheaper than reusable Spacex. Does China really need to develop a resuable version if their launch cost is cheaper than spacex?
Lower cost isn’t an end all be all of reasons why China may want a reusable booster.
Remember geography and staging.
Chinese launch sites are deep in the western China often overflying more eastern populated areas.
American and European launch sites are generally built equatorial with the Rockets using the earths rotation to give them a speed boost. Farther launch sites are generally located in coastal regions with the rockets fired out too sea. This is so that separating stages can fall into the ocean with little risk of injury.
The big American ones Kennedy to the East into the Atlantic, Vandenberg to the south south west into the Pacific with other facilities following suite the few land locked facilities being artillery or sounding rockets that drop inside
Over the decades of Chinese launches a number of stages and failures have dropped in or near inhabited areas. Remember last June in Xianqiao village, Guizhou Province a Long March 2C first stage dropped creating a panic. Of particular concern in this case isn’t just the fuselage of the rocket but the chemistry that rocket was spewing bright orange smoke a tell tale of Nitrogen tetroxide a highly toxic substance.
LM2 C is also known for using Unsymmetrical dimethylhydrazine also highly toxic. If the CNSA moved to a reusable launch system with a high reliability on return to base combined with a lower toxicity propellant. Peace of mind may not be cheap but it has a value all its own.