Information Dissemination has an article about the Coast Guard’s counterparts in China. Five agencies share the Coast Guard’s missions: China Maritime Surveillance (CMS) of the State Oceanic Administration (SOA), Fisheries Law Enforcement Command (FLEC), Maritime Safety Administration (MSA) of the Ministry of Transport, the anti-smuggling force of the General Administration of Customs, and their “Coast Guard” (aka Maritime Police in Chinese). All seem to be expanding, particularly China Maritime Surveillance and the Maritime Safety Administration.
The article talks almost exclusively about their cutters, including new construction. Apparently they don’t have many aircraft. There is no comprehensive list of personnel. Individually each is smaller than the USCG, but it sounds like collectively, they may have more personnel than the Coast Guard.