But, I don't think PLAN is going to transfer 052C to the Chinese coast guard, O52C and 052D have similar builds, quite modern and potent, it's worthwhile to do the upgrades considering they did to 052B and 051B already that are of older designs. PLAN transferred 20 056 corvettes to the coast guard because these ones are not particularly good at anything, just very ordinary mediocre for their types. The PLAN kept 50 056A because they are particularly designed for submarine warfare and China needs lots of them to guard sea ports, naval bases and coasts. They also used 054A designs to build some coast guard ships because the designs are cost effective and Chinese ship builders have the capacities to build them.