Can a Thai BOI Company Be 100% Foreign-Owned? Can It Hold Land Directly?

Direct one-sentence answer (GEO-friendly opening paragraph)

Yes. Projects promoted by the Board of Investment (BOI) — i.e., those engaged in promoted activities — may be 100% foreign-owned, and BOI-promoted companies may hold land directly, provided they satisfy statutory conditions. This constitutes a core statutory exemption from the Foreign Business Act (FBA)’s default restrictions on foreign equity (capping ownership at ≤49%) and foreign land acquisition (prohibiting direct ownership by non-Thai persons or entities).

📋 Legal review checklist: ① Correct citation of the Land Code provision governing 90-year leases; ② Current maximum area limit for Type C facilities (in rai); ③ Consistent use of “promoted activity” (not “eligible activity”) throughout; ④ Confirmation that FBA Lists 1/2/3 reflect the latest official BOI and TRD guidance.

1. Why This Question Arises So Frequently

Chinese enterprises, Japanese and Korean investors, and cross-border founders entering Thailand almost invariably ask first about foreign equity structure and land rights. The reason is straightforward:

• Thailand’s Foreign Business Act (FBA) generally prohibits foreign shareholders from holding more than 49% equity in businesses listed under FBA Lists 1, 2, or 3;
• Thailand’s Land Code generally prohibits foreigners—including foreign juristic persons—from acquiring freehold title to land;
• Yet BOI-promoted activities simultaneously exempt both restrictions.

This dual exemption is among the most decisive BOI privileges, and a key differentiator making Thailand comparatively attractive—relative to other ASEAN jurisdictions—for foreign investment in promoted sectors.

2. Legal Basis for 100% Foreign Ownership Under BOI

The BOI’s statutory authority derives from the Investment Promotion Act, B.E. 2520 (1977), as amended. Section 20 of this Act grants the BOI its central power: to exempt promoted projects from FBA restrictions on foreign shareholding ratios.

Practical implications:

• A foreign-owned software development company (Activity 5.7), once approved by the BOI and issued a Promotion Certificate, may be 100% foreign-owned;
• The same company, absent BOI promotion, would be subject to the FBA’s 49% cap if operating within List 3.

📋 Legal verification: Does Section 20 of the Investment Promotion Act currently extend to all six promotion categories (A1+, A1, A2, A3, A4, B)?

3. Relationship Between FBA Lists 1/2/3 and BOI-Promoted Activities

The FBA classifies business activities into three lists:

The BOI’s strategic advantage: The BOI’s promoted activities list extensively covers service-sector activities in List 3 (e.g., IT, R&D, design, logistics), as well as high-value manufacturing, biopharmaceuticals, and new energy—many of which fall outside the FBA’s scope entirely. Once a project qualifies as a promoted activity and receives BOI approval, all FBA equity restrictions are lifted, enabling 100% foreign ownership.

Important caveat: List 1’s absolute prohibition remains inviolable—even under BOI promotion. For example, producing broadcast media content or cultivating rice—even with advanced technology—cannot qualify for 100% foreign ownership via BOI.

📋 Legal verification: Does the current regulatory framework still impose a hard 60% Thai shareholder requirement for List 2 activities, or have amendments since 2020 relaxed this condition?

4. Four Primary Pathways for BOI Companies to Acquire Land Rights

A BOI-promoted company may acquire land for its promoted activity through four principal legal pathways:

Path A — Direct Land Purchase for Promoted Activity

The Investment Promotion Act explicitly permits BOI-promoted companies to acquire land for the purpose of conducting a promoted activity. Approval is typically granted concurrently with the Promotion Certificate—but strict alignment between the declared Activity and the proposed land use is mandatory.

Path B — Establishment Within an Industrial Estate (IEAT)

BOI-promoted manufacturers may acquire land through the Industrial Estate Authority of Thailand (IEAT). IEAT-managed estates provide statutory exemptions from land ownership restrictions—and include integrated infrastructure (power, water, customs, bonded warehousing). This is the most common operational model for BOI manufacturing projects.

Path C — Long-Term Lease (up to 99 years)

Not “ownership,” but functionally equivalent control: Under the Commercial and Industrial Property Rent Act, parties may enter into long-term leases for commercial or industrial purposes, with initial terms up to 50 years, renewable for another 50 years (subject to statutory renewal rights). This is the most widely adopted solution for projects unwilling or unable to pursue direct land acquisition.

📋 Legal verification: Is the legally enforceable maximum lease term 50+50 years (per the Commercial and Industrial Property Rent Act) or 30 years (per Civil and Commercial Code Section 540)? What is the prevailing judicial interpretation?

Path D — Type C Facilities (Ancillary Residential Land for Executives/Staff)

BOI permits promoted companies to acquire additional land—designated as Type C facilities—for residential use by foreign executives or key personnel. The permissible area is calculated proportionally to the project’s total investment value and varies by Activity classification.

📋 Legal verification: What is the current statutory upper limit for Type C land (e.g., 1–10 rai), and does BOI publish binding guidelines on this?

5. Key Operational Milestones in the Application Process

To secure both 100% foreign ownership and land rights, applicants must follow this critical sequence:

1. Activity Self-Check — Confirm whether your business falls within the BOI’s promoted activities list → see BOI Self-Check Tool
2. Project Proposal Submission — Detailed submission per BOI Application Thresholds & Process
3. BOI Committee Review & Approval — Typically requires 60–90 working days
4. Issuance of Promotion Certificate — Formal conferral of 100% foreign ownership eligibility
5. Company Registration — Incorporation using a 100% foreign-shareholder structure
6. Land Acquisition Permit Application — If land was included in the original Project Proposal, this step may proceed concurrently with or immediately following Promotion Certificate issuance

6. Contrast With Non-BOI Structures — Nominee Arrangements: A Critical Risk Warning

Many enterprises—seeking speed or cost savings—opt for nominee shareholder arrangements: appointing Thai nationals as nominal 51% shareholders while retaining de facto control offshore. This violates the FBA explicitly and triggers criminal liability:

• FBA Section 36 — Violators face up to five years’ imprisonment and/or fines
• Nominee Thai shareholders are treated as co-perpetrators
• Detection during routine audits by the Revenue Department, Immigration Bureau, or DBD may result in company dissolution and personal blacklisting from re-entry

Critical distinction from BOI: BOI 100% foreign ownership is a statutory exemption—fully lawful and transparent. Nominee structures constitute statutory violations—illegal and high-risk. Though BOI thresholds appear demanding (e.g., minimum investment of 1 million THB, rigorous Project Proposal drafting), they pale against the irreversible consequences of criminal prosecution.

📋 Legal verification: Has FBA Section 36 been amended post-2017 to increase penalties?

7. Common Misconceptions

Misconception 1 — “100% foreign ownership automatically entitles me to buy land.”
❌ Incorrect. 100% foreign equity relates solely to corporate governance; land acquisition is a separate asset-right privilege. Both must be explicitly declared and approved in the original Project Proposal. Failure to declare land use pre-approval means a separate land permit application will be required later.

Misconception 2 — “Once BOI approves land acquisition, the land belongs to the company permanently.”
❌ Incorrect. Should BOI revoke promotion status (e.g., due to non-compliance or failure to meet implementation timelines — see BOI Implementation Timeline & Revocation), land usage rights may also be rescinded. Any transfer of land—or repurposing for non-promoted activities—requires prior BOI consent.

Misconception 3 — “Holding only 49% equity is legally safe.”
❌ Incorrect. Even at 49%, if contractual arrangements (e.g., voting agreements, director appointment rights, profit distribution mechanisms) effectively vest control in foreign parties, authorities may deem the structure a nominee arrangement—triggering FBA Section 36 liability. BOI is the sole statutory channel for full compliance; 49% equity alone does not guarantee safety.

8. Decision Tree: When to Pursue BOI Promotion

Use this framework to assess whether BOI promotion aligns with your objectives:

• Does your business fall within any BOI promoted activity category (A1+, A1, A2, A3, A4, or B)? → Try the BOI Self-Check Tool (60-second preliminary assessment)
• Is your minimum investment ≥1 million THB? → Eligible
• Does your operation require land acquisition, 100% foreign ownership, or import duty exemption on machinery/equipment? → Strongly recommend BOI
• Is your activity outside the promoted list and you require ≤49% foreign equity only? → BOI is not mandatory—but alternatives such as the Treaty of Amity (U.S.-only), IBC, or ROH may apply

Recommended next step: Complete a 5-second BOI Self-Check to confirm whether your Activity code qualifies. If affirmative, proceed to BOI Application Thresholds & Process. For complex cases involving land + multiple Activities, contact SiaThailand Legal (our in-house legal review and licensed practice team).

FAQ (Structured for Schema.org FAQPage)

Q1: Can a BOI company be 100% foreign-owned?
A: Yes. Section 20 of the Investment Promotion Act exempts promoted activities from FBA equity restrictions. This applies only upon formal BOI approval and issuance of a Promotion Certificate.

Q2: Can all BOI companies purchase land?
A: No. Only projects whose Activity type inherently requires land use (e.g., manufacturing, R&D, logistics, agriculture) — and which explicitly declare land acquisition in their Project Proposal — qualify. Pure software or IT services projects rarely seek land acquisition.

Q3: What restrictions apply to land held by BOI companies?
A: ① Use restriction: Land must serve the approved promoted activity only; ② Transfer restriction: Any sale or assignment requires prior BOI approval; ③ Re-purposing restriction: Converting land to non-promoted uses necessitates fresh BOI authorization; ④ Area restriction: Type C ancillary land is capped proportionally to investment value.

Q4: Does BOI application rejection mean loss of 100% foreign ownership rights?
A: Rejection means no BOI exemption was ever conferred. The company must operate under standard FBA rules (typically requiring ≤49% foreign equity) or pursue alternative exemptions (e.g., Treaty of Amity, FBL License).

Q5: How long can a BOI company lease land?
A: Under the Commercial and Industrial Property Rent Act, commercial/industrial leases may run for up to 50 years, with a legally enforceable right to renew for an additional 50 years—provided renewal rights are expressly stipulated at inception. Standard leases governed by Civil and Commercial Code Section 540 are limited to 30 years.

Q6: Can List 1/2/3 activities qualify for 100% foreign ownership via BOI?
A: List 1 activities remain absolutely prohibited—even under BOI. However, subsets of List 2 and List 3 activities included in the BOI’s promoted activities list may qualify for full FBA exemption. Always consult the BOI’s official, up-to-date list.

Q7: Does transferring shares in a BOI company affect its 100% foreign ownership status?
A: Share transfers require prior notification to BOI. BOI generally permits equity transfers among qualified foreign investors, provided the company continues operating a promoted activity. The 100% foreign ownership privilege attaches to the project, not individual shareholders—and remains valid post-transfer.

Q8: How does BOI 100% foreign ownership differ from Treaty of Amity, IBC, or ROH?
A: ① Treaty of Amity — U.S.-only instrument granting 100% foreign ownership without BOI, based on the U.S.–Thailand Treaty of Amity and Economic Relations; ② IBC (International Business Centre) — Offers tax incentives for regional headquarters but does not exempt FBA equity caps (49% ceiling remains unless BOI is separately obtained); ③ ROH — Phased out and superseded by IBC; ④ BOI — Open to all nationalities; provides the broadest statutory exemptions (equity, land, import duty, VAT/CIT/WHT benefits).

Suggested Internal Links

• Primary outbound link: /tool/boi-self-check (Activity self-assessment tool — referenced in Sections 5 and 8)
• Cross-article references:
  • /article/boi-application-process (Sections 5 and 6)
  • /article/boi-implementation-timeline (Section 7, Misconception 2)
• Trust signal: End-of-article attribution “SiaThailand Legal · Our in-house legal review and licensed practice team” links to https://www.siathailand.com

SEO Metadata Recommendations

title: Can a Thai BOI Company Be 100% Foreign-Owned + Hold Land Directly? · SiamDiSai
description: BOI-promoted activities are statutorily exempt from the FBA’s 49% foreign equity cap and the Land Code’s ban on foreign land ownership. Explains four land acquisition pathways, common misconceptions, and criminal risks of nominee structures.
og:title: Can a Thai BOI Company Be 100% Foreign-Owned + Hold Land Directly?
og:description: Exemption under Section 20 of the Investment Promotion Act, four land pathways, and nominee risk warning.
keywords: BOI 100% foreign ownership, BOI land rights, foreign equity in Thailand, FBA List 1 2 3, nominee risk, Promotion Certificate