I hear there is a lot of corporate work in Bangkok. What is it exactly?
A language school will send you to teach company staff at their workplace. You might be teaching report writing to a group of five managers or basic business English to ten giggly secretaries and receptionists. Most companies will study a couple of nights a week, say Tuesday and Thursday - and sessions usually last about two hours.
It's worth noting that there doesn't seem to be anywhere near as much corporate work around as there used to be.