The lounge is after immigration and security.. On the extreme left after security beside the restaurant..
It a Priority Pass lounge and I believe also the airline lounges.. But NO mastercard lounge ( which is a shame since the domestic terminal has it and even the old intl terminal had it)..

I had entered to check if its a mastercard lounge and they said no, so I returned.. BUT there was not even 1 person in the lounge at that time ( 8.30PM ).. Seemed to have basic snacks and drinks..