For the USA Honda already sells the Honda MSX 125 as the Honda Grom 125, and I doubt that they would willingly help creating a parallel import market.
Currently Honda motorcycles Australia doesn't sell the Honda MSX 125 / Grom 125, but that can change quickly as the model seems to get popular.
You can try to contact APHonda but I would not get my hopes up that they actually going to reply on any email.
Hi , I would like export msx 125 to USA and Australia . Any contact for factory ? Thanks . bos.namaste@gmail.com