I would like to inform you that our consultant has already blocked their
schedule for the week of 16 January, 2017 for the potential join trip to Thailand.
They ask me one question. Do United citizens require any work permit application
to enter Thailand for a business purpose trip?
In my understanding, if it is a short term stay which is less than 15 days
and the purpose of trip is just for Meeting, they do not need Visa.
However, it will be appreciated if you could confirm with someone at DIT who
is supposed to be familiar with this kind of Visa matter.