Foreign Ownership of Thai Companies — What the 49% Rule Actually Means
The single most consequential rule for anyone investing in Thailand is deceptively simple: a company is treated as foreign once foreigners hold more than 49% of its shares. Everything else follows from that threshold.
The classification, not the cap
It helps to understand that 49% is not a prohibition on foreign ownership. It is a classification line. Cross it, and the Foreign Business Act B.E. 2542 applies to your company — bringing licensing requirements, higher capital thresholds, and restrictions on which activities you may conduct at all.
The FBA sorts business activities into three lists. List 1 activities are closed to foreigners entirely — media, land trading, rice farming among them. List 2 requires Cabinet approval and covers sectors touching national security or culture. List 3 is the workable category: activities foreigners may enter with a Foreign Business Licence from the DBD, covering areas such as retail, architecture, engineering, and various professional services.
Knowing which list your intended activity falls under is not a detail to sort out later. It determines whether your business model is viable in the form you have planned.
Three legitimate routes past 49%
A Foreign Business Licence permits operation in List 3 activities with majority or full foreign ownership. The application goes to the DBD, carries minimum capital requirements, and — candidly — is not easy to obtain. Applications for businesses that compete directly with established Thai operators are frequently refused. Ventures that are genuinely unique or non-competing have materially better prospects.
BOI promotion is, in my view, the most attractive route where it is available. The Board of Investment permits 100% foreign ownership in promoted sectors — technology, manufacturing, R&D, logistics among them — and layers on tax incentives, streamlined work permits, and land ownership rights. It requires a detailed project plan and takes several months, but it solves the ownership question outright rather than working around it.
The Treaty of Amity permits US citizens to hold majority or full ownership across most sectors under a bilateral arrangement with Thailand. Its limitation is obvious: it does nothing for anyone who isn't American, and even US investors remain subject to certain restrictions, land ownership among them.
The route that is not available
Nominee arrangements — Thai nationals holding shares on paper without genuine financial contribution or real ownership interest — are illegal under Section 36 of the FBA. This is not a grey area, and it is not a risk that falls only on the Thai nominee. The foreign party who funds and controls the arrangement is squarely within the provision's reach.
The practical problem compounds the legal one. A foreign investor in a nominee structure has no enforceable claim over the shares. If the nominee declines to cooperate, the investor cannot sue without exposing the illegality of the arrangement itself. The structure offers no protection to the very person it was meant to protect.
If you need more than 49%, pursue BOI or an FBL. If you can work within 49%, structure the relationship properly and protect your position through a well-drafted shareholder agreement. There is no third option worth taking. If you are structuring an investment in Thailand and the 49% question is on the table, get in touch.
Law stated as at the date of publication: May 28, 2026.
This article provides general information on Thai company and intellectual property law and is not legal advice. It does not create a lawyer-client relationship, and each matter turns on its facts. Mikołaj Kawka advises on cross-border corporate structuring and works with Thai-qualified counsel on Thai-law matters.