I am a regualar visitor to Hong Kong about twice a year for the HKTDC fair,i have been issued several double entry visa into hong kong.At times when am in Hong I will go to China Mainland for d 3 fairs and by the 3rd i get stock becos my Hong Kong visa would have been fully used.Pls Is it not possible to be issued a 1year multiple visa instead of going forward and backward.I have USA,UK,Schnegen visas in my passport