ID Exchange of Thailand
At least three independent directors and one third of the board, an all-independent audit committee, and a nine-year tenure expectation — on the second-largest listed market in ASEAN.
Thailand requires listed companies to have at least three independent directors constituting not fewer than one third of the board, with an audit committee drawn entirely from them. The SEC's Corporate Governance Code operates on apply-or-explain and asks boards to treat nine years' cumulative service as the point at which independence should be reconsidered. Family and conglomerate ownership remains concentrated, which makes the independent seats the ones that carry the governance weight.
- ~800
- Companies listed on SET and mai
- 3 or 1/3
- Independent directors required, whichever is greater
- 9 years
- Cumulative service at which the CG Code asks boards to reconsider independence
Can a foreign director sit on a board here?
No nationality test applies to a director of a Thai public limited company. Sector-specific foreign-ownership rules affect the company, not your eligibility to sit on its board.
- Residency test
- None.
- Nationality test
- Certain restricted businesses under the Foreign Business Act carry foreign-participation limits that bear on ownership and, in some regulated sectors, on management. Check the sector's licensing position rather than assuming the general rule.
- Work authorisation
- A non-resident director attending board meetings does not require a work permit. Executive and resident roles require a non-immigrant visa and work permit.
- Board language
- Board documentation is commonly in Thai, though listed issuers with international shareholders work bilingually.
- Time commitment
- Typically 6–12 board meetings a year plus audit-committee cycles driven by quarterly reporting.
What you have to do
The appointment steps, in order.
- 1Election by the shareholders' meeting
- 2Registration of the change of directors with the Department of Business Development within the statutory period
- 3Filing of the independence declaration where the appointment is as an independent director
- 4For a financial institution or insurer, Bank of Thailand or OIC approval as applicable
What actually gets in the way
- Board documentation is commonly in Thai, though listed issuers with international shareholders work bilingually
- Ownership remains concentrated in families and conglomerates, so the independent seats carry disproportionate weight and disproportionate scrutiny
- Director accreditation through the Thai Institute of Directors is a strong market expectation even where it is not a legal requirement
Board composition
What Thailand requires of a board.
Each requirement is stated as arithmetic against the instrument that creates it, with who it binds. Nothing here is characterised as compliance or non-compliance — that is a legal conclusion about a specific company, and it is not ours to draw.
| Requirement | Threshold | Basis | Applies to |
|---|---|---|---|
| Independent directors | At least three, and not fewer than one third of the board | SEC notifications under the Securities and Exchange Act | Listed companies |
| Audit committee | At least three independent directors, one with financial-statement expertise | SET listing regulations | Listed companies |
| Independence shareholding limit | Shareholding not exceeding the prescribed percentage, counting related persons | SEC independence criteria | Independent directors of listed companies |
| Tenure | Nine cumulative years, at which independence should be reconsidered | Corporate Governance Code, apply-or-explain | Listed companies |
Independence and tenure
How long you may serve, and what ends it.
- Tenure cap
- Nine cumulative years is the point at which the Corporate Governance Code asks a board to reconsider independence. It is apply-or-explain rather than a hard cap.
- Cooling-off
- A separation period from employment, or from being a professional service provider, with the company or its group, as prescribed in the SEC criteria.
Other tests
- Holding shares above the prescribed percentage, counting related persons
- A business relationship with the company or its group above the prescribed value
- Being an auditor, or a partner or shareholder of the audit firm, within the prescribed period
- Being a close relative of an executive or a major shareholder
What a seat pays
THB 500,000 – 1,500,000 a year for an independent director of a SET-listed company, with the largest banks and energy groups above that.
- Where this comes from
- Directors' remuneration is approved by the shareholders' meeting and disclosed in the annual registration statement (Form 56-1 One Report).
- Committee uplift
- Audit-committee chairs carry a defined premium; meeting allowances are typically separate from the annual fee.
- Tax
- Directors' fees from a Thai company are Thai-source income with withholding for non-residents; treaty relief varies.
The instruments this page relies on
Securities and Exchange Act and SEC notifications
Require a listed company to have at least three independent directors and not fewer than one third of the board, and prescribe the independence criteria including a shareholding limit and a separation period from employment.
SEC Thailand
SET listing regulations
Require an audit committee of at least three independent directors, at least one of whom has sufficient knowledge and experience to review the reliability of financial statements.
The Stock Exchange of Thailand
Corporate Governance Code for Listed Companies
Apply-or-explain. Sets out the board's role in value creation, asks for board composition that is diverse and appropriately independent, and treats nine years' cumulative service as the point at which a board should reconsider a director's independence.
SEC Thailand
Public Limited Companies Act
Governs the public limited company, including director duties, board meetings and shareholder rights. It imposes no nationality requirement on directors.
Kingdom of Thailand
Diversity requirements
Stated as the rule states it — quota, target or disclosure obligation.
- The Corporate Governance Code asks boards to be diverse in skills, experience and gender, and the SEC and SET publish comparative data.
- There is no quota; the Thai Institute of Directors and institutional investors drive expectations.
How this regime map is maintained
Every requirement on this page is cited to the instrument that creates it, and the review date states when a person last checked it against the primary source. Nothing here is legal advice: rules change, and transitional provisions frequently apply. Verify against the primary instrument before you rely on it.
This regime map was last reviewed against primary sources in September 2026.
The demand thesis
Why seats open in Thailand — and how an outsider reaches one.
This section is our reading of the market, not a statement of law. It is separated from the rules above for exactly that reason.
Why seats open
- The one-third independence requirement across roughly 800 listed companies keeps absolute demand high relative to the domestic pool.
- The nine-year reconsideration point produces a steady, disclosed refresh even without a hard cap.
- Thai conglomerates have expanded across ASEAN and want directors who have governed in the markets they have bought into.
- Sustainability reporting and supply-chain due diligence in food, agriculture and energy are new board-level obligations.
How you get in
- Audit-committee seats, where the financial-statement expertise requirement is explicit
- Thai subsidiaries and regional headquarters of multinational groups
- Conglomerates expanding across ASEAN seeking regional governance experience
- mai-listed growth issuers, where boards are smaller and first foreign appointments are lighter decisions
What this market is short of
- Chaired an audit committee
- Professional accounting qualification
- CISO or board-level cyber accountability
Most receptive sectors
Live mandates
No mandates open in Thailand right now.
Register your interest and you are matched against this market's briefs as they open — statutory, interim and advisory alike.
Mobility corridors
Where board experience travels, into and out of Thailand.
A corridor is a directional pair of markets between which experience is genuinely legible — and every one of them carries a friction, because a corridor with nothing to bridge would be a corridor nobody had thought about.
Into Thailand — where its boards recruit from
Adjacent ASEAN markets with comparable independence architecture, overlapping capital and a shared expectation that listed boards work to international disclosure standards.
Friction — Thai board documentation is commonly in Thai, and director accreditation through the Thai Institute of Directors is a strong market expectation even where it is not a legal requirement.
Questions
Thailand, answered directly.
How many independent directors does a Thai listed company need?
At least three, and not fewer than one third of the board, under the SEC notifications made under the Securities and Exchange Act. The audit committee must be drawn entirely from those independent directors, with at least one able to review the reliability of the financial statements.
Is there a tenure limit for Thai independent directors?
Not a hard one. The Corporate Governance Code asks boards to reconsider a director's independence at nine cumulative years, on apply-or-explain, and institutional investors treat that as the working boundary.
ID Exchange of Thailand
Is Thailand actually one of your markets?
The mobility index scores it against your own record across four named components — corridor strength, legal openness, what this market is short of, and the language its boards work in — and tells you plainly when the answer is no.