If an employee of a Thai university does not renew their annual contract and their Non B expires 30/09/2018, can they be fined for leaving Thailand via Cambodia on 30/09/2018?
TLDR : Answer Summary
An employee who does not renew their Non-Immigrant B visa can leave Thailand on the expiry date of their visa (30/09/2018) without incurring a fine, provided they are on their originally granted Non-B visa. However, if they were on an Extension of Stay, they would need to formally cancel it on their last working day.