Lots of variables. Is this an initial? Extension of existing? Do you have a bank account with 800K baht seasoned for 2 months or do you need them to make that part happen for you?
to be honest for that category I am not sure. It doesn’t say “or” so I would guess it’s all 3. But I was told BOI is very responsive to queries. I would ask them.
I know several people are saying the money must be transferred from overseas to fund the 800K but that was not my experience. I never had to show anyone anything and it most definitely was not transferred from outside of Thailand.
I’m not saying to do this because everyone’s situation is different but that’s what happened with me.