Just wanted to share my experience with STV renewal process, as I couldn't find much before we completed it.
We are based in Chiang Mai and the renewal was super easy. Unlike rumours flying around, it was not difficult at all. We needed to have:
* TM 2 and 3 - Acknowledgement of understanding overstay rules and renewal process (available at immigration office)
* TM 7 - Application for renewal (available at immigration office). Including passport size photo.
* TM 30 - Showing where we have been staying in Thailand (available at immigration office, if the hotel/accom has filed it)
* Photocopy of passport, visa and TM 6 (departure card)
* Proof of accommodation (in our case I just printed off the AirBNB booking)
* Letter from ASQ confirming we completed quarantine
We did not have to show proof of health insurance (although we have it). Staff were super helpful!
There have been a lot of negative posts about this visa, but for us the process has been pretty easy, right from the initial application. It has been a great visa option for those people like us who wanted to stay in Thailand for a longer period (up to 9 months).
TLDR : Answer Summary
A user shared their positive experience with the STV renewal process in Chiang Mai, highlighting that it was straightforward and easier than expected. Required documents included TM 2 and 3 forms, TM 7 application, TM 30 declaration, passport copies, proof of accommodation, and a letter from ASQ confirming quarantine completion. They noted that health insurance proof was not requested. Comments emphasize that experiences may vary by immigration office and caution that many require health insurance and proof of lodging.