How can I change my employer and obtain a new work permit without cancelling my current Non-B visa in Thailand?

To change employers while holding a Non-B visa, it is crucial to first check if your current visa includes your employer's name. If the visa is tied to a specific employer, you will need to apply for a new visa. However, if there is no employer's name attached, you may be able to change employers without cancelling your current visa. Additionally, if you hold an Extension of Stay, you must report to Immigration every 90 days and may need to cancel it to apply for a new visa.