Shareholder Agreements in Thailand.

Two documents, doing different jobs

A Thai limited company already has governing documents: the memorandum of association and the articles. They are public, they are filed, and they set out the company's constitution.

A shareholder agreement is private, and it binds the shareholders to each other rather than governing the company. That difference is the whole point. It is where the commercial deal lives: who gets to decide what, what happens when someone wants out, and what happens when two people who own half each stop agreeing.

What a shareholder agreement cannot do is override the statutory framework. Certain decisions require a special resolution by law, notice periods are fixed, and the company still has to keep its statutory books. An agreement that assumes it can contract around those is a document that produces false confidence.

The useful mental model is that the articles say what the company can do, and the shareholder agreement says what the shareholders promised each other about how they would use their votes.

The clauses that actually get used

Most shareholder agreements are read once at signing and then only when something has gone wrong. The clauses that matter are the ones for that second reading.

Reserved matters: the list of decisions that need more than a simple majority, whatever the shareholding is. This is how a minority investor gets real protection rather than theoretical protection.

Transfer restrictions: pre-emption rights, tag-along and drag-along. Without these, a co-shareholder can sell to someone you would never have gone into business with.

Deadlock: what happens at fifty-fifty when nobody will move. An agreement without a deadlock mechanism in a two-shareholder company is an agreement that has not thought about its most likely failure mode.

Exit: how someone leaves, how the shares are valued, and who is obliged to buy. Valuation formulas agreed in advance are worth far more than valuation arguments held later.

Founder and employment terms: what happens to shares if a working shareholder stops working, and what they may or may not do afterwards. Employment questions run under employment contracts rather than company law, and the two need to align.

Where foreign ownership complicates things

For foreign-owned or partly foreign-owned companies there is an additional constraint that has nothing to do with drafting quality. The Foreign Business Act restricts foreign participation in listed activities, and the offence of nominee shareholding covers arrangements where Thai shareholders hold in name only while a foreigner controls in substance.

That matters for shareholder agreements specifically, because control provisions are exactly where such an arrangement becomes visible. An agreement that gives a foreign minority effective control over a Thai-majority company in a restricted activity is not clever drafting; it is evidence. The lawful routes are a foreign business licence in Thailand, a BOI application in Thailand, or a treaty right, and the agreement should be drafted consistently with whichever one applies.

For the wider practice, corporate lawyers in Thailand handle shareholder agreements alongside company registration and the ongoing corporate compliance cycle.

When to have one

Any company with more than one shareholder who is not the same household, and every company with an outside investor. The cost of an agreement is trivial against the cost of a dispute without one.

The best moment is at formation, when nobody has anything to lose by being reasonable. The second-best moment is before an investment closes. The worst moment is during a disagreement, when every clause becomes a negotiation about a live dispute.

A simple agreement between founders is bounded work most firms will quote as a fixed fee. An investment agreement with reserved matters, ratchets and multiple classes of share is not. No credible published source gives professional fee ranges, so compare written scopes.

This page is general information, not legal advice. What an agreement can achieve depends on the company's structure and activities, so speak with a qualified professional.