The first one that comes to mind is Mia/Maitai who I know for a fact is Thai.  She is a sweetheart and bottom only.

http://www.eros-la.com/files/la-maitai1.htm

http://www.theeroticreview.com/reviews/show.asp?id=6358

According to her ad, Sonya, who is visiting soon, is also Thai.  Haven't had the pleasure of meeting her...yet.

http://www.eros-la.com/files/la-sonya16.htm

http://www.theeroticreview.com/reviews/show.asp?id=27440

On the east coast, I like to looks of Ginger (Boston), Jasmin (NYC), Sara (DC) and Venus (NYC) but haven't met any of them either.