Civil and Commercial Code
Book III governs company formation, directors’ powers, shareholder meetings and share transfers.

Northeastern Thailand — Udon Thani
Incorporation, contracts, foreign business, BOI and compliance

Udon Thani is the gateway between the upper northeast and Lao PDR, with a sizeable community of foreign nationals married to Thai spouses and living long term. Work here mixes local land and succession disputes with marriage registration, bilingual wills and documents for use in a spouse’s home country. Preparing documents for both systems at the outset avoids repeating the process.
Full-lifecycle corporate support: choosing the right vehicle, incorporation, drafting and reviewing contracts, foreign shareholding structures, business licensing, M&A and dissolution.
Jurisdiction and filing requirements should be confirmed for each matter, because practice and required attachments differ between offices.
| Court / authority | What it handles |
|---|---|
| Udon Thani Provincial Court and Udon Thani Municipal Court | Civil and criminal cases within the province |
| Udon Thani Juvenile and Family Court | Divorce, custody and legitimation of children |
| Labour Court Region 4 | Labour cases in the upper northeast |
| Udon Thani Provincial Land Office and branch offices | Land registration and subdivision of titles |
| Udon Thani Immigration Office | Extensions of stay on marriage or retirement grounds and periodic reporting |
| Udon Thani Legal Execution Office | Enforcement of judgments in the province |
| District offices in Udon Thani (civil registration) | Marriage and divorce registration and civil status records |
| Udon Thani Provincial Commercial Office | Local company registration services |
Incorporation with complete documents usually takes a few business days; special licences and BOI approvals take considerably longer.
Timeframes are indicative and depend on the court calendar and the authority handling the matter in Udon Thani.
Summarised for general understanding only. The application of each provision depends on the facts of your case.
Book III governs company formation, directors’ powers, shareholder meetings and share transfers.
Restricts certain businesses for foreigners and sets out the licensing route.
The basis for BOI tax and non-tax incentives.
Sets corporate tax duties, withholding tax and VAT obligations.
These are constructed examples used to explain procedure. They are not client matters, and no outcome is implied or guaranteed.
Situation: A foreign investor wants more than 49% of a service business.
Usual approach: Check whether the activity falls in the FBA schedules, then compare a foreign business licence, BOI promotion, or restructuring the activity outside the restriction. (Hypothetical.)
Situation: A director resigned but the company never filed the change.
Usual approach: Keep dated proof of the resignation and push the registration through — stale register data can be used to assert liability later.

Typically the marriage certificate, the spouse’s house registration and ID card, proof of residence and financial evidence under Immigration Bureau criteria. The most frequent cause of resubmission is names or dates differing between documents, so consistency should be checked before filing.
Use a form of will recognised under Thai law and state clearly whether it covers only Thai assets or foreign assets too. If a will already exists in the home country, the wording must avoid unintentionally revoking it — a common problem when two wills are made separately.
The main risks concern the asset’s status on divorce or death, and the requirement that officials may ask to confirm the source of funds as the Thai spouse’s personal property. Recording intentions and conditions in advance, in a form valid under Thai law, reduces later disputes far more than reacting afterwards.
Activities listed under the Foreign Business Act generally require majority Thai ownership unless a licence, treaty right or BOI promotion applies.
Not universally required by law, but some licences and banking practices call for one.
English contracts are binding, but a certified Thai translation is needed for Thai courts or authorities.
Tell us the facts and we will explain which authority applies, what documents are needed and the realistic timeframe.