Do I need to provide a TM30 form for a visa extension in Thailand on a tourist visa?

The TM30 form is typically required for visa extensions in Thailand, especially if you are staying at a rental property or similar accommodation. Since you are on a single entry tourist visa and are about to apply for an extension at Chaengwattana, it is advisable to ensure that the TM30 has been correctly submitted by your landlord or property owner. It would be beneficial to check this before your appointment to avoid potential issues with your extension application.