I just tried that one from Embassy to compare against what i actually bought and found it expensive.
Not sure what it meant by country of origin, either country i was travelling from or personal origin.
If from Singapore
*****
baht.
If from UK
*****
Baht.
But these are purely for covid insurance.
I bought years insurance to cover all of Asean excluding Singapore as I have work Insurance there. It was
*****
baht but that covers other normal things for hospital bills etc and other countries within Asean which hopefully will be able to start travelling next year.
Best to shop around especially if you are young you can get a lot better deals than what is on the RTE website.