What steps do I need to take if I change jobs and provinces while holding a Non-B visa and work permit in Thailand?

When changing jobs and moving provinces in Thailand while holding a Non-B visa and work permit, it's necessary to cancel your old work permit and obtain a new one from your new employer. If you maintain your Non-B visa, you can use it while leaving the country every 90 days for visa validity. However, if you have an Extension of Stay, you will need to cancel that and apply for a new visa.