What is the process to transfer a Non-O Over 50 visa stamp to a new passport in Thailand?

To transfer your Non-O Over 50 Extension stamp to a new passport in Thailand, you need to enter the country with both passports and get the new one stamped. At Chaengwattana Immigration, prepare the transfer stamp form, both passports, and an updated bank book (just the current balance page). You'll also need copies of the photo pages from each passport, the last arrival stamp from the new passport, and the last extension stamp from the old passport. Afterward, to transfer your re-entry permit (if issued at Suvarnabhumi Airport), you must visit the airport with both passports on your next flight out. Ensure you update your bank book on the day of your visit as it's required by Bangkok immigration.