BUZZ-USD/THB sitting on 30.15 support

* USD/THB testing 30.15 lows once again, ext gain in SET weigh

* Thai stock mkts ext rally for another 0.5% to 1586.97 last

* Inflows from China, exporters sales further boosting THB gains

* USD/THB traded to 30.15 low so far, off 30.175 early high

* BOT may not put up strong defence ahead of 30.0 psychological support

Source: ASEAN Exchanges