Company Formation in Thailand: Legal Options for Foreign Investors

Thailand continues to attract international entrepreneurs thanks to its dynamic economy, diversified resources, and the steady presence of investors, expatriates, retirees, and tourists. These factors contribute to an environment that is generally favorable to the development of commercial activities.

At the same time, Thai law establishes specific rules governing foreign participation in business activities. Depending on the nature of the proposed activity, several legal structures and regulatory mechanisms may allow foreigners to hold a majority—or in some cases the entirety—of a company’s capital.

Opterra Legal assists investors throughout the entire process, from the initial legal assessment and structuring of the company to the acquisition of the required licenses and approvals.

1. The Key Question: Can a Foreigner Own 100% of a Company?

The first step in establishing a business in Thailand is to determine whether the intended activity falls within sectors restricted under the legislation governing foreign businesses. Certain activities are subject to limitations that, in principle, prevent foreigners from directly conducting the business or from holding a majority interest in the company.

When the activity falls within a restricted category, a common structure involves a shareholding arrangement in which Thai nationals hold 51% of the shares and foreign investors hold the remaining 49%. Within this framework, it is possible to organize corporate governance in a manner that strengthens the rights of foreign minority shareholders. This can be achieved through carefully drafted articles of association and specific shareholder agreements designed to safeguard operational control.

However, several legal mechanisms may allow foreigners to hold a majority—or even 100%—of the shares, subject to certain conditions. These mechanisms include:

• Obtaining a Foreign Business License (FBL);
• Securing promotion from the Board of Investment (BOI);
• Relying on the Thailand–United States Treaty of Amity;
• Utilizing the Thailand–Australia Free Trade Agreement (TAFTA);
• Applying the Japan–Thailand Economic Partnership Agreement (JTEPA).

A preliminary legal analysis is therefore necessary to determine which option is best suited to the investor’s project.

2. Special Considerations for United States Citizens

American nationals may benefit from the provisions of the Treaty of Amity between Thailand and the United States, provided certain conditions are met.

Under this arrangement, eligible activities may be exempt from some of the restrictions imposed by the legislation governing foreign businesses. A company operating under this regime can therefore be owned entirely by American shareholders, provided that all applicable requirements are satisfied.

3. Establishing a Thai Company

The most common legal structure used for business operations in Thailand is the limited company. This form of entity creates a separate legal personality distinct from its shareholders. As a result, the liability of shareholders is limited to the unpaid value of the shares they hold.

To establish such a company, at least two shareholders are required.

The legal minimum registered capital can be nominal—technically as low as THB 10. In practice, however, the capital structure usually reflects the scale of the business project:

• A capital of THB 1,000,000 is commonly used for a standard company;
• A capital of THB 2,000,000 is generally required when a work permit is to be obtained for a foreign employee.

The amount of capital should remain consistent with the nature and size of the planned investment.

4. Board of Investment (BOI) Promotion

Certain business activities may qualify for promotion by the Board of Investment.

Companies that receive BOI promotion may benefit from several advantages, such as:

• Temporary tax exemptions;
• Reduced tax rates;
• Authorization to acquire land;
• Specific rules concerning the ratio between Thai and foreign employees;
• The possibility of maintaining 100% foreign ownership.

It is therefore important to determine whether the proposed activity meets the criteria established by the BOI.

5. Representative Offices and Regional Offices

Foreign companies may also establish a presence in Thailand without immediately creating a local subsidiary.

Representative Office

A foreign company may open a representative office, provided that the office does not generate income within Thailand and does not directly conduct commercial transactions. Its permitted activities are generally limited to:

1. Sourcing goods or services for the head office;
2. Inspecting and controlling the quality of products purchased by the head office;
3. Providing advice relating to the head office’s products;
4. Conducting marketing and public relations activities;
5. Reporting commercial information to the head office.

Regional Office

Where a company operates subsidiaries or branches in Asia, it may establish a regional office in Thailand. Such offices may engage in activities including:

1. Operational management;
2. Advisory and management services;
3. Training and human resource development;
4. Financial management;
5. Marketing planning;
6. Product development and research.

Representative and regional offices benefit from specific work permit conditions, including a reduced ratio of Thai employees to foreign employees—generally 1:1 instead of 4:1.

6. Work Permits and the Status of Foreign Directors

When a company intends to employ foreigners—including directors or shareholders—certain conditions must be satisfied.

In general, the following requirements apply:

1. A registered capital of THB 2,000,000 per foreign employee;
2. A ratio of four Thai employees for each foreign employee.

The company must also comply with its monthly tax and social security obligations before applying for a work permit.

Foreign directors or employees must obtain a Non-Immigrant “B” visa, which is typically issued by a Thai embassy or consulate abroad. In certain circumstances, a change of visa status within Thailand may also be possible.

7. Licenses Required for Specific Activities

Beyond company registration, many types of business activities require additional regulatory approvals. Depending on the nature of the project, the company may need to obtain specific licenses, such as:

• A restaurant license;
• An alcohol sales license;
• A license relating to the cultivation or sale of cannabis;
• A factory license;
• A hotel license;
• Authorization from the Food and Drug Administration (FDA) for food, cosmetic, or pharmaceutical products;
• A massage or spa license;
• Or any other sector-specific authorization required by law.

Identifying the applicable licenses at an early stage is essential to ensure that the business operates in full compliance with Thai regulations.

Conclusion

Establishing a company in Thailand as a foreign investor requires careful analysis of the proposed business sector, the applicable legal restrictions, and the available structural options.

Whether the project involves creating a local company, obtaining BOI promotion, opening a representative office, or establishing a regional office, each option carries its own requirements in terms of capital, governance, work permits, and licensing.

Appropriate legal guidance allows investors to secure the chosen structure, optimize their rights as shareholders, and ensure that the business complies with all applicable legal and regulatory requirements.

The information contained in this article is for general informational purposes only and should not be construed as legal advice. You should seek professional advice for your specific situation.