That is correct, no thirteenth month unless you are in HK. Also don't ever expect to see a profit share at Cathay Pacific again. Also, if you have a shred of integrity, go somewhere else, this place will change you... and not for the better....
That said, if you're a self server, look out for number one, yes I'll fly for free or ex-military fast jet guy without the b@lls to go into battle (yes they exist here) and you like working with people who think nothing of breaking hiring bans (lots of them here too), this is the place for you....