the easier way is to submit ur application to direct hong kong special administrative region in hk.
1)1 complete singed application form.
2)one resent photo.
3)a valid six month passport & uae resident visa.
4)complete round trip air fright ticket n hotel reservation.
5)no objection letter from ur company. & stating that ur monthly salary,start of job,designation.
6)any previous travell record to any country u visited b4.
7)visa fees is hk$ 160 per applicant & u can make payment addressing to hk special as region.
8)the above payment only be made through hk affiliation bank in dubai,like hsbc.
9)dont send ur passport along with ur application.send all ur documents with a reputated courier & pay the couries return fees.
10)its all take about 4 weeks to 6 weeks of processing