Different Immigration offices may have slightly different requirements, Where are you applying?. For instance Samut Prakan requires: Photocopy of passport pages with following pages
– front page showing name / surname / Passport No., ect.
– current visa
– last entry stamp of immigration
– last extension of visa
Photocopy of house registration or rental contract (may be needed to show proof of your address)
Photocopy of departure card TM.6
Previous notifications of staying over 90 days (if any)
Completely filled in and signed notification form TM.47.