Hi,
I have two one-time United Club one-time pass received when applying for the UA explorer card last year. I am traveling from PVG(Shanghai) to SFO next month. I am wondering if the pass can be used at PVG airport lounge? (I don't find the UA club available at PVG from UA site, but looks like there are other lounges at PVG.)

Any experiences are appreciated.

Thanks.