Originally Posted by
gchc
Ah understood! I would like to get that priority tag

Is the UA First/Business Priority, the same as the ANA First Priority?
Thanks again for all the clarification!
Why is the priority tag so important? The most important thing here is to get your baggage tagged all the way through to SIN. AC does not have F so the best they can do is put a *A priority tag on your luggage.
They should be able to do that for you in YQF no problem, but they may not be able to issue you boarding passes for the whole journey. You may have to show your baggage receipt in NRT at the transfer desk to get your last BP.