Join Date: Oct 2003
Location: Living in SIN™, trying to make it through a year in BLR
Programs: SQ Pew Pew SSSS, Marriott/Accor Plat, IC Dia Amb, GHA Tit, Avis/Hertz PC
Posts: 6,770
There are no arrivals lounges in SIN, so your UA C boarding pass won't work.
Without PPS status, you can use the SKL F/C only if holding any *A F/C departing boarding pass.