<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by leroy11:
Please let us know if you manage to get that routing approved. You are visiting Asia twice which depending upon how you interpret the rules may not be allowed.</font>
Assuming the LON-HKG-ADL journey does not involve a stopover at HKG, the routing will be fine. That's why the second asia arrival/departure for flights without stopover Europe-SWP was invented. Any stopover at HKG would have to be done on the way to North America.