Thailand didn't used to have CFC laws, but now they do, so you need to talk to a local Thai accountant. Most countries will tax foreign companies that are owned by tax residents in some form -- that's why you can't just run a Belize company when you live in the UK as a run around UK corporation tax. In short: MOST PEOPLE CAN'T (LEGALLY) SAVE MONEY BY INCORPORATING IN A COUNTRY OTHER THAN THE ONE THEY'RE TAX RESIDENT IN.

OTOH, Thailand has a pretty good determination of it you're tax resident, looking at purely the number of days resident, so if you're there less than 183(?) days, you might well have some options. However, everyone is still scrambling to work out what the Sep 2023 tax decrees mean, including the Thai Revenue department ;-)

If it's a tech company, and if a local accountant thinks you'll be hit by those, do you qualify to start a Thailand BOI company? There are significant local tax breaks offered by that.