What steps should I follow to renew my passport while keeping my visa valid in Thailand?

Robert I from the Netherlands and renew my passport a week a go. The Dutch ambassadeur came to Chiang Mai and fill there a the paper work. And Monday I get my new and old passport back.

I send a mail to emigrate office. And this was there answer.

Dear Mr. Jack,

Please visit immigration office when you receive the new passport. Please bring both new and old passport to remove the visa stamps.

Also send a mail to my agent and this was here answer.

For the visa extension, the immigration will need to transfer your old stamp to new passport sir. It's the additional process for 1,500THB. After the stamps transfer, they can continue your visa extension on the new passport.

Hope you got something with this information

Just share my experience....I renew my passport online and collected my passport in the embassy in bkk get a letter fron your embassy stating your renewal and bring the letter and both passport to the immigration office to move your extensions and re entry permit to the new passport....

I visited embassy 10 times, and each time they refuse to give me new passport 🛂🛂🛂🛂 it's disgusting

Keep both passport...

You don't have to do anything. Renew your passport. Once you receive it you can go to your immigration office and ask them to move your extension into your new passport. If for some reason you had to leave the country before then, you would just show both passports.