Knowledge Base 
A straightforward breakdown of the FBA’s restricted lists and the legitimate structures — BOI, Amity Treaty, minority shareholding — that allow foreign operation. The Act is the reason “just register a company” is not a strategy for most foreign-owned businesses.
What the Act actually restricts
The Foreign Business Act limits what majority-foreign companies may do in Thailand. Restricted activities sit on lists with different treatments. Operating a restricted activity through a nominee Thai shareholder is not a clever structure; it is a legal risk. The legitimate paths are majority Thai shareholding with real Thai owners, a Foreign Business Licence where available, BOI promotion, or Amity for qualifying US parties.
Minority foreign shareholding
A common lawful pattern is a Thai limited company in which foreign shareholders hold a minority, with Thai shareholders holding the majority and having a genuine economic interest. Paper-only Thai shareholders used to preserve foreign control are the pattern that gets companies into trouble.
Licences are not a substitute for structure
Even a correctly owned company may still need industry licences. Structure gets you the right to exist and, in many cases, the right to carry on the activity as a foreigner. Licences get you the right to operate that activity in a given location. Both layers matter.
Get the restriction mapped before you brand the entity
Name reservation and logo work are cheap compared with dissolving a company that cannot legally do what you incorporated it to do. Map the activity against the FBA lists, then choose BOI, Amity, minority structure, or a licence path with eyes open.
