Our review of the Priority Pass Plaza Premium Lounge in the International Terminal at PEN:
https://readyjetroam.com/2019/05/15/...onal-terminal/
tl:dr version: Serves as PP lounge as well as business lounge for Malaysian, Qatar, Silk, China, China Southern, etc. Basically all the airlines other than Cathay which has its own lounge down the hall.
This lounge is a bit dark, small and cramped. And it only has the basic amenities.
But it is still a nice oasis.
And we were able to make a decent chef-prepared lunch out of our visit.