Originally Posted by
Flumps
Flights to/from HKG have no surcharges other than mandatory taxes/airport charges due to local law. But this doesn't seem to apply if you're transiting there, so watch for this.
Unfortunately this is no more, after they introduced RFS for long haul.
you can pay the same low tax, but with 50% more avios, or you can pay the old avios amount with a huge tax like everywhere else. I live in Brazil and it't difficult to absorb the blow.