I believe the CBR300R only just recently became available there... I'm also thinking that the current political unrest happening in Thailand might possibly be putting a slight damper on such things as new domestic motorcycle sales... but that's just a guess.
Hopefully with all that is going on there, it won't cause any further delays in terms of Thai Honda Mfg. Co. being able to export the CBR300R (as well as the CBR650F) to N.A. and Europe. That would certainly be a big blow to sales if getting those bikes loaded up on ships somehow become an issue. In fact, given the typical timeline for sea shipments, in order for U.S. dealers to have CBR300R's on their showroom floors by August, those bikes would need to be loading onto ships right about now.