You are using an outdated browser and your browsing experience will not be optimal. Please update to the latest version of Microsoft Edge, Google Chrome or Mozilla Firefox. Install Microsoft Edge

August 7, 2023

A Comparison of M&A Laws: Thailand

Asia Business Law Journal

M&A transactions for private and public limited companies in Thailand can be achieved in many ways, including acquiring shares from existing shareholders of a limited company, subscribing to new shares issued by a limited company, an amalgamation of limited companies, acquiring all or part of the assets or business of a limited company, and a merger of private limited companies.

The Civil and Commercial Code is the key legislation governing private limited companies, while public limited companies are mainly governed by the Public Limited Company Act of 1992, as amended, unless listed on the Stock Exchange of Thailand (SET), in which case the Securities and Exchange Act of 1992, the Securities and Exchange Commission (SEC) Rules, the Capital Market Supervisory Board (CMSB) Rules, and the SET Rules also apply. The legal framework for most M&A transactions concerning Thai limited companies is also provided in both the code and the Public Limited Company Act.

New Type of Combination

On 7 February 2023, the Act Amending the Civil and Commercial Code came into effect, introducing a new merger scheme as another approach to business combination for private limited companies. A merger under the amended Civil and Commercial Code is a merger of two or more companies, resulting in either a new company with all merged juristic entities ceasing to exist or one of the companies continuing to exist with the other companies ceasing to exist as juristic entities.

The merger replaces the “amalgamation” in the previous version of the code, which merely prescribed a legal framework and identified the implications of mergers but did not specify a concrete legal framework for the acquisition of assets or businesses.

Arguably, the first type of merger described above is the same as an amalgamation under the previous version of the code, while the end result of the second type of merger is similar to an entire business transfer where one of the companies continues to exist after the merger. The difference is that the amended code has put the same legal procedures in place for both types of mergers, including:

  • An approval resolution from a shareholders’ meeting;
  • Registration of the resolution with the public registrar;
  • Arrangement for a purchase of shares from disapproving shareholders;
  • A notice to creditors for raising any objections;
  • A joint meeting between the shareholders of all merging companies; and
  • Registration of the merger with the public registrar.

After a merger (of either type), the new or surviving company assumes all assets, liabilities, rights, obligations, and responsibilities of the dissolved companies, by virtue of the amended Civil and Commercial Code.

For listed companies, the requirements and procedures under the Public Limited Company Act, the Securities and Exchange Act, the SEC Rules, the CMSB Rules, and the SET Rules also need to be considered.

Common M&A Structures

Although M&A transactions can be structured in many ways in Thailand, the acquisition of an existing limited company’s shares is the most common one. It is less complicated, has fewer legal procedures and makes for a smoother transition of business ownership (when the acquisition is of all or most of the shares) than an asset or business acquisition. The acquisition of shares in an existing limited company (often referred to as a target) can occur through an acquisition of shares from the target’s existing shareholders or through a subscription of new shares issued by the target (or through a combination of these). These two methods are described below.

In the acquisition of shares from existing shareholders, shares in a private or non-listed public company can be acquired through a share sale and purchase agreement with the selling shareholders that sets commercial terms such as the amount of shares to be sold, date of the transaction closing, selling price, pre-closing conditions, warranties and indemnities. An acquisition of shares in a private company can be executed by the selling shareholders through a simple share transfer instrument specifying the details as required by the Civil and Commercial Code, together with recording the transactions in the target company’s register of shareholders. A transfer of shares in a non-listed public company becomes effective between the parties on the endorsement and delivery of the share certificate to the purchaser, pursuant to the Public Limited Company Act.

An acquisition of shares from the existing shareholders of a listed company can be arranged with or without a sale and purchase agreement and by way of a mandatory or voluntary tender offer. An acquisition with one or more selling shareholders may trigger a mandatory tender offer for the remaining shares if it falls under certain conditions, such as the acquisition of shares reaching a trigger threshold of 25%, 50%, or 75% of the total voting rights of the target. Alternatively, a voluntary tender offer for all shares of the target or for 25% or more but less than 50% of the shares is another possible way of acquiring shares in a listed company.

An acquirer can also subscribe to newly issued shares in a private or non-listed public company, which can proceed through a share subscription agreement that includes commercial terms such as the amount of shares to be allotted and subscribed, the subscription price, pre-closing conditions, warranties, and indemnities. Under this structure, the target company needs to increase its registered capital in accordance with the legal procedures prescribed in the Civil and Commercial Code or the Public Limited Company Act, including obtaining an approval resolution of not less than three-quarters of all stock held by the shareholders in the shareholders’ meeting and having the capital increase registered with the public registrar.

As for a listed company, the increase of registered capital and offering of newly issued shares on a private placement basis must be approved by the SEC in accordance with the commission’s rules and regulations, as well as any other applicable laws. The SEC has revamped various rules relating to private placements by listed companies with a view to streamlining the offering process and reducing the documentation required for submission. Most of these rules were revised by the CMSB on 28 December 2022 and came into effect on 1 July 2023. The key amendments include elimination of the application requirement, requiring submission of an independent financial advisory opinion, simplification of the market price calculation and clarification of the offering period.

Foreign Ownership Restrictions

Thailand’s legal limitations on foreign ownership may present notable challenges for foreign investors anticipating cross-border M&A deals in the country. These limitations can impact the choice of M&A structure and a foreign investor’s controlling power over a target company.

The Foreign Business Act, 1999, is the main law governing foreign ownership of businesses in Thailand. Under the Foreign Business Act, companies registered overseas, or registered domestically with 50% or more of the shares held by non-Thais, are deemed to be foreign. Foreign companies are restricted from engaging in certain businesses in three lists in the Foreign Business Act. This means foreign investment in companies operating a restricted business is limited to less than 50% of the shares unless a foreign business license is granted, or the business is granted a conditional exemption by virtue of the provisions of the act, ministerial regulations, investment promotion laws, industrial estate laws, or treaties between Thailand and certain countries.

Furthermore, certain business types are strictly prohibited to foreign nationals under specific laws, and there is no way for a company with foreign majority ownership to operate such a business. An example of this is the land transport business under the Land Transportation Act, 1979, as amended, which can only be engaged in by a limited company with no less than 51% of its shares held by Thai nationals. Apart from that, the Land Code Act, 1954, also generally prohibits foreign nationals from owning land in Thailand unless otherwise permitted under investment promotion or industrial estate laws.

Legal considerations such as the effect of Thailand’s restrictions on foreign ownership are just one of the issues that can be made clearer by a robust legal due diligence exercise, which is especially important for foreign parties and others who may not be familiar with Thai laws. Legal due diligence entails a thorough review of corporate structure, business operations, regulatory compliance, requisite licenses, labour, property, and other relevant aspects of a target company, and this will clarify whether there are any foreign ownership restrictions concerning the target company or the proposed investment. Other comprehensive due diligence, such as tax and finance due diligence, can be carried out in parallel. These can help investors determine the most efficient M&A structure and method for carrying out legally compliant business activities through a target company in Thailand.

This article first appeared in A Comparison of M&A Laws, published by Asia Business Law Journal.

RELATED INSIGHTS​ 

December 30, 2025
On December 17, 2025, Laos’ Ministry of Industry and Commerce (MOIC) issued a notice introducing a new digital system that allows e-commerce businesses to obtain required certificates and licenses through an online, application-based platform. Notice No. 3988, which will take effect on February 1, 2026, introduces the E-Trust platform, a downloadable application that allows e-commerce businesses to remotely obtain acknowledgement certificates and business operating licenses. New Digital Registration Options Under the previous framework established by the Decree on E-commerce (2021), businesses were required to complete registration exclusively through paper-based submissions. The new system now offers businesses two registration options: Traditional paper-based process at the Division of E-commerce Management within the MOIC; or Electronic registration and renewal through the E-Trust platform. This change is expected to streamline procedures, reduce administrative burdens, and enhance accessibility for businesses operating outside Vientiane. The E-Trust platform facilitates compliance for both individuals and legal entities required to submit applications and renewals for required certificates and licenses. The development is particularly beneficial for businesses located in remote provinces, as it eliminates the need for physical travel and significantly accelerates processing times. Compliance Requirements and Penalties Businesses must obtain or renew the required certificates and licenses to avoid sanctions under the Decision on Fines and Other Measures for Violation of the Decree and Regulations on E-commerce (No. 2828/MOIC, dated November 11, 2025). Penalties for noncompliance may include monetary fines and other enforcement measures.
December 19, 2025
Prior to the dissolution of the House of Representatives, Thailand’s cabinet approved a draft amendment to the Administrative Procedure Act, following review by the Council of State. If enacted, this reform will fundamentally change how state agencies process business applications and appeals by imposing enforceable timelines and legal consequences for inaction. The draft directly targets a longstanding commercial frustration: applications and appeals that vanish into administrative silence, stalling investment and foreclosing judicial review across sectors ranging from real estate and manufacturing to healthcare and finance. The “Silence Means Yes” Rule for Applications At the core of the reform is a new automatic “approval by implication” for applications subject to statutory processing deadlines. If an official fails to notify an applicant of a decision within the legally prescribed period, the application will be deemed approved as a matter of law. This presumption shifts the costs of delay from businesses to the bureaucracy and gives applicants a definitive legal position once time expires. The mechanism applies to routine licensing and registration matters governed by explicit consideration periods in existing statutes or ministerial regulations. Officials may extend the decision period by up to thirty days, but only if they notify the applicant before the original deadline and substantiate that the delay arises from genuinely exceptional circumstances beyond their control. Certain sensitive applications are expressly excluded from automatic approval, including those that may significantly affect national security or defense, public safety and health, the environment or natural resources, or national cultural heritage. Once the deadline passes without a decision, businesses can proceed with deployment of capital and operations—construction, hiring, procurement, and market entry—without waiting for formal permission that may never arrive. For time-sensitive projects, this materially reduces regulatory timing risk. The “Deemed Rejection” Rule for Appeals The draft introduces a parallel “deemed rejection”
December 15, 2025
Thailand is taking steps to energize its startup scene by drafting the Startup Promotion Law. This draft law aims to remove obstacles, open new funding opportunities, and provide coordinated government support. The goal is to make it easier for Thailand-based startups to grow and compete on a global stage. Why Is This Law Needed? For many years, Thai startups have operated under traditional company law frameworks that were not designed with high-growth businesses or with fundraising opportunities in mind. Restrictions on issuing bonds, offering shares to outside investors, and repurchasing shares for employee incentive programs made it challenging for emerging companies to access capital and accelerate their growth. The draft Startup Promotion Act seeks to remove these obstacles and foster a more competitive, entrepreneur-friendly environment in Thailand. Who’s in Charge? Two main organizations will oversee the startup ecosystem: Startup Promotion Committee: This group, to be appointed by the National Science, Research, and Innovation Policy Council, will set national strategies, policies, and budget; design promotional campaign and incentives; and propose further legislative amendments to promote startups. National Innovation Agency (NIA): Under the draft act, the NIA will be the main contact for startups and will serve as the secretariat office of the Startup Promotion Committee, coordinating data, advising startups, maintaining the public registry, and providing funding and investment (grants, repayable grants, loans, and equity) under committee criteria and, where applicable, cabinet approval. What Startups Are Eligible for Benefits? To be officially recognized and access benefits, a company must: Be a private limited company less than 10 years old at the time of application. Existing companies that already exceed the 10-year threshold may still apply for startup statues within one year of the law’s enactment, as long as they otherwise still qualify for the new regime. Have average annual revenue not
December 4, 2025
Thailand has expanded the circumstances under which state agencies may bypass competitive bidding procedures to address urgent security challenges. On November 28, 2025, Thailand’s Ministry of Finance published the Ministerial Regulation Determining Cases of Procurement by Specific Method (No. 6) B.E. 2568 in the Royal Gazette, introducing a new pathway for procuring supplies and services needed to address cyber and military threats that may affect the stability of government agencies or the nation. For technology vendors, cybersecurity firms, and defense contractors, this regulatory change creates immediate opportunities to engage directly with government buyers facing urgent security challenges. New Fast-Track Category for Security Threats The regulation amends Thailand’s Public Procurement and Supplies Management Act B.E. 2560 (2017) to add a new category of procurement that qualifies for the “specific method”—a noncompetitive, direct selection process. Previously, agencies could use this expedited method only in limited circumstances, such as emergencies, cases with proprietary technology requirements, or national security operations. The new provision explicitly covers procurement of supplies related to preventing or resolving cyber or military threats that could impact the stability of a state agency or the country. This addition recognizes the urgent nature of modern security challenges, where competitive bidding timelines may leave agencies vulnerable during critical threat windows. State agencies dealing with active cyberattacks, preparing defensive measures against anticipated threats, or responding to military security concerns can now move directly to negotiate with qualified vendors rather than conducting lengthy public tender processes. Vendor Considerations Vendors offering cybersecurity solutions now have a regulatory avenue to work directly with government clients when stability concerns are present. These solutions include threat detection systems, anti-ransomware tools, incident response services, firewalls, and security consulting. Similarly, defense contractors providing military equipment or specialized security supplies can pursue direct engagement channels where traditional procurement methods would create