Wholly Foreign-Owned Company in Thailand: Available Legal Routes

Classify the contracts before choosing an ownership route

“Wholly foreign-owned” describes the shareholding. It is not a separate Thai legal form or a general investment permit. A Thai-incorporated company limited can still be a “foreigner” for regulatory purposes: the Foreign Business Act, B.E. 2542 (1999), includes Thai-registered entities with half or more of their capital shares held by relevant foreign persons. BOI’s foreign-business explanation sets out that definition and the permission framework.

Start with the activities the company will perform, rather than its industry label. Record who supplies the product, who owns materials, what the Thai company delivers, who pays it and whether it earns a sale price, service charge or commission. These details give the legal reviewer something more precise than “technology,” “manufacturing” or “international trade.”

Company registration and permission to operate restricted business are separate completion states. List One prohibits specified foreign business activities; List Two and List Three have different admission rules. Sector legislation can impose additional limits. Use the official English translation of the Foreign Business Act together with current Thai instruments, which control the legal classification.

Keep the entity workstream aligned with the route analysis. The underlying company registration process in Thailand establishes the company and its recorded particulars; it does not turn every registered object into an authorized foreign business.

Use an unrestricted or exempt business activity

Where an activity falls outside the restricted lists, or within an applicable exemption, a foreign-owned company need not obtain an FBL for that activity. The official permission guidance distinguishes activities needing approval from those needing no special foreign-business approval. This route can therefore be available without BOI promotion or a Thai equity partner, provided other applicable law permits it.

Exemptions must be read at their actual boundaries. The August 28, 2026 ministerial regulation on exempt services expands specified exemptions, including defined related-company services. It does not exempt every service supplied by a multinational group. Match the service and the required relationship to the wording, and keep evidence of both. A sector regulator’s own requirements can still apply.

Do not rely on an old list copied into a business plan. The Department of Business Development’s current legal register includes 2026 amendments and regulations. The useful output of the review is a dated classification for each activity, identifying the particular list provision or exemption and any conditions that must remain true.

Pay particular attention when a sale includes installation, maintenance, procurement or a management service. Treating the whole contract as one “sale” can conceal a separate activity. The current activity classification and exemption boundaries become relevant whenever the commercial scope expands. Keep any unresolved component out of the launch scope until its treatment is settled.

Test promotion, treaty and industrial-estate eligibility

A certificate route depends on a qualifying entitlement established outside the ordinary FBL decision. BOI promotion and qualifying industrial-estate permissions use section 12; treaty entitlements use sections 10 and 11. The official FBL and certificate guidance explains these alternatives. A certificate is not a general exemption for everything the company may later add to its objects.

BOI promotion: check the activity code and its conditions

The Thailand Board of Investment (BOI) permits foreign equity without a general cap for promoted List Two and List Three projects, subject to other laws and any activity-specific limit. Its foreign-shareholding criteria expressly preserve that qualification. Identify the exact eligible activity, project requirements and ownership conditions before treating promotion as a full-ownership route.

For example, BOI Announcement No. Sor. 7/2568 requires at least 51% Thai individual shareholding for promoted bag manufacturing, furniture or parts manufacturing, and printing activities, with a stated exception for projects in designated special border economic zones. It applies to applications from September 1, 2025. Promotion eligibility alone does not prove 100% foreign-shareholding eligibility. Check the proposed project against the applicable category conditions.

Treaty of Amity: establish the qualifying U.S. connection

The U.S.–Thailand Treaty of Amity and Economic Relations can support full ownership for qualifying U.S. businesses. The U.S. Commercial Service’s Thailand guidance describes ownership, management and certification requirements, along with reserved areas including communications, transportation, fiduciary functions, depository banking, indigenous agricultural trade and exploitation of land or natural resources. A U.S. address or U.S. minority investor is not enough to establish qualification.

Map the ownership chain and directors before selecting this route. The Commercial Service’s certification letter supports the application to the Thai authority; it is not itself the DBD Foreign Business Certificate (FBC). Budget the evidence work for corporate owners in the chain, and verify that the exact proposed activity benefits from treaty treatment.

Industrial-estate permission: establish the written authorization

The Industrial Estate Authority of Thailand (IEAT) route is relevant to qualifying industrial or export-trading operations with the written permission contemplated by section 12. Section 12 of the Act links that authorization to an FBC for covered List Two or List Three business. Renting premises in an industrial estate does not by itself establish that entitlement.

For an estate project, review the proposed activity and the actual written permission together. Confirm which operations it covers and identify any activities performed outside that scope. Avoid choosing premises first and assuming the address will resolve the foreign-business question. BOI promotion and IEAT permission are distinct bases even when a project considers both.

The choice turns on the legal basis available for the specific work. Keep the unrestricted route, entitlement route and discretionary license route separate when assembling the approval file.

Consider a Foreign Business License for remaining List Three work

An FBL may support a wholly foreign-owned company carrying on eligible List Three business when no applicable exemption or certificate entitlement covers the work. It is an application for permission, not an automatic result of registering foreign shareholders. The government’s section 17 application guidance describes the business explanation and supporting information required and states that operation follows the license.

Prepare a precise business narrative: the services to be delivered, customer categories, operating scale, staffing, planned duration and benefit to Thailand. Link it to contracts and the operating model. A generic company presentation gives the decision-maker less useful evidence than a description of what employees will actually deliver and how the business will operate.

List Two is not a general 100% ownership fallback. Under section 15 , the ordinary List Two route requires at least 40% qualifying Thai shareholding, reducible with the required approval to no less than 25%, and at least two-fifths Thai directors. A separate qualifying treaty or section 12 entitlement needs its own analysis; a standard FBL application does not remove those conditions.

Funding also changes with the route. Section 14 sets statutory minimum-capital floors of THB 2 million generally and THB 3 million for each business requiring permission under the lists, subject to the Act’s applicable exemptions and implementing rules. Do not apply either amount mechanically to a promoted or otherwise exempt case. The capital and permission provisions should be reviewed alongside the project conditions. Capital is funding for the business, not a registration fee or an assurance of approval.

If the requested scope cannot be licensed as proposed, narrow or redesign the actual activity and recheck it before starting. Do not preserve the same foreign business behind nominal Thai shareholders. Section 36 penalizes nominee arrangements used to circumvent the Act.

Build an activity-to-authority schedule before incorporation

Create one working schedule that connects each commercial promise to its legal basis. This is a planning tool, rather than a government form. Its purpose is to expose gaps before the company signs a contract that combines cleared and uncleared activities. Use the same descriptions in the business plan, draft agreements and applications, with any necessary legal classification added separately.

Assign a named owner to each unresolved row and record the evidence that closes it. Approved scope should mean the wording and conditions in the relevant permission, not an informal prediction of what the authority will accept. The official section 12 certificate guidance illustrates why the underlying promotion or written authorization matters to that certificate application.

Then build a launch file containing the company registration record, current ownership and director information, the activity analysis, and the applicable license, certificate or exemption evidence. DBD’s current e-Foreign Business notice confirms online applications for foreign-business licenses and certificates. An application receipt is evidence of filing, not evidence that permission has been granted.

Keep separate checks for tax registration, applicable VAT, sector licenses, premises, banking and foreign personnel. BOI’s establishment guidance identifies additional registrations and authorizations that can arise. Make these checks specific to the actual operations rather than treating an ownership route as a universal operating clearance. For budgeting, separate regulatory capital, project investment and working funds; they answer different questions.

Reopen the schedule when the company adds a revenue stream, changes a contract from supply to service, changes qualifying owners or moves beyond its approved project. The planning advantage of this file is continuity: the person approving the next contract can see both the permission and the commercial assumption on which the earlier decision depended.

Approve the ownership route against the first customer contract

Choose the route that covers the company’s first actual customer commitment , with ownership, project and sector conditions that the business can maintain. An unrestricted or exempt activity may need no FBL; a qualifying entitlement may lead to an FBC; eligible remaining List Three work may justify an FBL application. Do not select the route solely because its label appears quicker or more attractive.

Before launch, reconcile the signed scope with the activity schedule and retain the evidence supporting every necessary permission. Pause the affected work if a contract component remains unclassified, the proposed shareholders fail the route conditions, or the permission covers less than the business plans to deliver. Resolve that gap before committing to performance.