I believe the training taking place overseas are in Jandakot and Queensland.
If you are enquiring whether they would pay for your training at a location of your preference, the answer is no.
However I do have a query of my own. While the age limit is 26, a friend of mine who is a FO in pax fleet told me there are special circumstances where SIA would write to RSAF to request a written clearance. I've tried RSAF pilot selection for kicks and passed medical and computer test and failed the interview.
At this moment I'm 23 and just finished my degree and have received letter of offer to continue master. If the above case is true, I might give up master programme and try my luck with SQ.