I believe the CAAS now will only accept JAR66 lic issued from Uk - kind of defeats the object of JAR66, but this is the CAAS!
If you join SIAEC you need CAAS air leg (L11 exam) and H11 for Human factors. If you join ST or SASCO then no CAAS lic required as they do not require you to work on 9V reg aircraft. Usually the local lads with CAAS lics work on any 9V aircraf that come thru.
Hope this helps