There are far more work opportunities than just ground handling staff at the airport... Depending on your preference, qualification and experience... There are actually quite a fair amount of jobs which you can apply for at the Hong Kong... And also depending on your interest as well...
Are you planning to do more customer services field? Or are you planning to do more office work?
I can point out a few opportunities here for you... To work as a ground staff, you only need the minimum qualification of F.5... Because what you are after is a more customer sevices field... It would always be a big plus if you have got good communication skills... And they always look for people who are friendly rather than more acadamic ability...
Apart from ground staff, you can also apply for the Airport Authority Officier position which doesnt necessary require much qualification but would require you a good English/Cantonese skill while Mandrian is an advantage...
For F.5 and F.7 application, you can happily apply those job without problem... And for the ground handling, the intake is more concentrated on you friendness while for the officier, it is more concentrated on your ability...
If you have finished a degree, you can apply for Airport Authority's Management Traineer programme which give you 2 year of management experience in the field... However, this job will require you a good degree and also interested in aviation... Of course, if your preformance is good in the programme, there is a high chance that they will take you on a longer contract as a supervior or something...
If you are really that interested in aviation field and willing you work at the airport... There are many more opportunities than you think there is... And my best advice is you decide now where you want to stop your education F5? F7? or degree? Then you start looking at the job opportunities at comparies that require dealing with airport and pick on the job type that you like and work towards it...
And you can always have a look at website like
www.hkairport.org /
www.cathaypacific.com who are the major employers at Hong Kong airport and do have quite a large amount of job opportunities through out the year... And also in this website:
http://www.hongkongairport.com/eng/tbu/airInfo_handling.htm it has a list of handling agency at Hong Kong Airport where you can also find out their website and have a look at their requirement...
Also, if you are hoping to work in the services industry at Airport... I would suggest you to at least get a good result in both Chinese and English on HKCEE and also having a third language would be an advantage (Mandrian could be most preferred at this time)...