

Transit airside Pudong Airport Air China Terminal 2?
Helps please!?
I cannot seem to get a clear answer on the internet, as many posts have contrary information. I have a 2.5 hour transit time at Shanghai Pudong on Air China flying from London to Osaka end of November. All flights are with Air China on one ticket. Luggage I presume should be checked through from London to Osaka. With Air China would I stay 'airside' for this transfer or would I have to exit airside through immigration and return to departures via check-in hall, immigration (again) and security, using the 24 hour transfer visa exemption? I have previously transferred through Beijing with CA where the transit method is all done airside.
I also realise there is a now a new satellite terminal open that handles some Air China flights.
Does anybody have recent experience of Air China International to International transit at PVG?
Any information gratefully received. Many thanks indeed!