Transfer of entry stamp to new passport

[vi2004]

Could you please help me to confirm my understanding of a transfer of an entry stamp to a new passport?

I had a non-immigrant O multiple entry visa.

The enter before date was in May.

So now I am in Thailand on my last entry of three months on this visa.

The visa is in my old passport - so is my last entry stamp to Thailand.

Now I have a brand new and empty passport.

 

From what I have learned here on Thaivisa and hopefully understood correctly is that a visa is never transferred to a new passport - only extensions are transferred.

 

Since my visa is now "used" anyway I guess all I need to have transferred is my last entry stamp to Thailand.

Is that correct?

 

So could I have this done at any airport or land border crossing (especially Mukdahan or Nong Khai) when presenting both passports?

Or do I have to go to ChaengWattana?

Do I need this letter from the embassy?

Could I even go to Suvarnabhumi on any given day and walk to immigration outside the gates (I don't even know if there is one) and have it done ahead of my actual flight day out?

 

Thank you very much

[ubonjoe]

You can have your entry stamp transferred on departure from the country by showing both passports.

No problem at any border crossing to Laos.

Most immigration offices will not transfer the stamps unless you are on a extension of stay.

[vi2004]

Just a quick feedback:

I had my entry stamp transferred to my new passport in Mukdahan a couple of days back.
For that I had to go to the main immigration office to the right of the bridge.

Just as an advice: Plan in some time to do that.

It took at least half an hour. I thought it was an easy and quick task. But for some reasons it took quite long and a full page in my passport with three different stamps.