Chinese ASW strategy seams to be green-water oriented... While I agree that sub against sub is probably best strategy PLAN lacks capability to successfully deploy subs beyond coastal reach.SSKs are joust not suited for blue water operations and SSNs PLAN has aren't numerous nor sophisticated enough to take that task...
Is the Russian SS-N-15 Starfish ASW missile up for sale? If so it could be used as a stop gap measure until an indigenous system is available. A ship with a dual hanger housing 2 Mi-29s dedicated to ASW duty would also help. All this makes me wonder whether the PLAN should develop a large ASW/general purpose ship using the 052B hull, the aforementioned systems, C-803 antiship missiles, and a point defense VLS SAM system similar to that found on the 054A.