Work permit extension - current visa is 'on arrival'

[DualSportBiker]

Gentlepeople in the know,

 

My Cat B expired before company BOI application was approved. Now it is clear that will take time. My WP expires on 25 June. My current visa is a permission to stay obtained at Ban Phu Nam Ron, Kanchanaburi. That too expires 25 June.

Can my employer renew my WP as is? Or must I go get a Cat O/B before applying for renewal? Being married to a Thai and employed, I qualify for both, but lean to a Cat O as I would get the year without having to deal with renewal here in three months.

 

Follow up Q: Proof of funds for Savannakhet - do I need 400K in a Thai bank for 3 months or will funds in a foreign account be OK, or is it still like 2 years ago when nothing was needed.

[ubonjoe]

You must have a non immigrant visa entry to extend your work permit.

No financial proof is required in Savannakhet for a non-o visa based upon marriage.

[DualSportBiker]

Thank you sir.

[DualSportBiker]

I've trawled as many places as I can search through to confirm the list of supporting documents needed. I can't find a definitive list. This is as I remember it:
 

• Copy of my passport
• Original and copy of marriage certificate
• Copy of my wife's National ID card
• Covering letter from my wife
• Application form

Is that correct? Did I leave anything out?

[ubonjoe]

Copy of wife's house book registry signed by her. ID card copy needs to be signed by her as well.

Cover letter not required at Savannakhet.

Photos for the application form and Lao visa on arrival.