Is there air-side transit now without having to go through customs and back through immigration again in Shanghai PVG?

I had always stopped in Shanghai itself and never paid attention to transit.

Thinking of doing a SIN-ICN-PVG-ICN-SEA routing with a 1.5 hour transit at PVG.
Do-able?

Visa wouldnt be an issue and I would just have a carry-on rollerboard and no check-in bags.

Thanks!