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

February 19, 2026

Thai SEC Issues New Regulation on Material Transactions

Subscribe to Updates

Thailand’s Securities and Exchange Commission (SEC) has issued a new regulation on material transactions (MTs) to govern asset acquisitions and disposals by listed companies and their subsidiaries. The new notification on MT criteria (No. TorJor. 45/2568) from the Capital Market Supervisory Board replaces the long-standing notification (No. TorJor. 20/2551) that has governed such matters. The SEC has also introduced parallel amendments to the country’s related-party transaction rules.

The new regulation will take effect on July 1, 2026. Any MT matters approved by a company’s board of directors for shareholders’ approval before that date remain subject to Notification No. TorJor. 20/2551.

Following that date, the new MT rules will introduce several significant changes that market participants should carefully consider.

Expanded Scope of Material Transactions

One of the key changes under the new regulation is the expansion of the definition of MTs, which now expressly covers financial assistance and certain lease and business lease arrangements that are not in the ordinary course of business of the listed company or its subsidiaries.

For financial assistance, this includes lending, granting credit, providing guarantees, or entering into any arrangement that increases the company’s financial obligations, particularly where the recipient is facing liquidity issues or unable to repay debts. Other forms of financial support also fall within scope. However, whether the provision of collateral for others qualifies as an MT remains somewhat unclear, since no disposal of assets occurs for the provider of collateral. This issue remains to be carefully considered.

For lease-related transactions, the MT rules now specifically include the lease or hire-purchase of all or part of a business or assets operated by or belonging to a listed company or its subsidiaries.

New Exemptions

The new regulation introduces clearer exemptions for transactions between a listed company and its subsidiaries or among subsidiaries, which were not explicitly addressed under the old regime. Other exempt transactions include the establishment of a new subsidiary and liquidity management investments by a listed company or its subsidiaries.

In addition, if a subsidiary that is also a listed company fully complies with the MT requirements, the parent listed company is not required to separately comply for that same transaction (dual approval exemption).

Changes to Transaction Aggregation Rules

The new regulation extends the aggregation period from 6 months to 12 months. However, aggregation is now required only for transactions that are related or form part of the same project. Transactions that have already received shareholder approval remain excluded.

Revised Approval Thresholds and Process

The new regulation lowers the shareholder approval triggering threshold, meaning more transactions may now require shareholder approval compared to the previous regulation, as detailed in the table below.

Under the new framework, a key shift is the reduction of the shareholder approval threshold for transactions from 50% to 25% in general cases, with an even lower 10% threshold for companies with negative net assets or operating losses, where the transaction may have an adverse impact (special case). At the same time, certain procedural steps have been streamlined, including the removal of the shareholder circular requirement.

Minority Veto Mechanism

The new regulation introduces a clearer minority protection mechanism. If the audit committee or the independent financial advisor opines that shareholders should not approve the transaction, the transaction cannot proceed if shareholders holding at least 10% of the voting rights present and eligible to vote object to it.

Progress Reporting Requirement

After obtaining shareholder approval, the company must disclose progress reports every six months (by January 31 and July 31) and include such updates in their Form 56-1 One Report until the transaction is completed.

The company must immediately report if it is unable to materially proceed with the transaction as approved, or if the transaction is canceled.

Next Steps

Market participants should review their internal policies, approval processes, and transaction monitoring practices in light of the expanded scope, revised thresholds, and new aggregation rules. In particular, financial assistance arrangements and transaction grouping analyses will require closer scrutiny under the new framework.

Given the scope of the amendments, further clarification from the SEC is expected. A formal guideline is likely to be issued, and both the SEC and the SET are expected to hold seminars to explain the new compliance framework in more detail. We will continue to monitor developments and provide updates as further clarification becomes available.

Related Professionals

Practices

Capital Markets

Corporate/M&A

Location

RELATED INSIGHTS​

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”
Read More
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
Read More
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
Read More
December 4, 2025
Thailand’s Department of Business Development (DBD), through its Office of Central Company and Partnership Registration, has released multiple draft orders for public consultation until December 12, 2025. These draft orders aim to strengthen the business registration process, with a focus on the requirements for establishing and amending the principal office address of a partnership or limited company, verification of authorized signatories, and measures to identify and prevent registrations involving persons linked to suspicious or high-risk activities. The draft orders’ proposed requirements are outlined below. Principal Office Verification The principal office address of a partnership or limited company, including house registration code, house number, full address details, and building name, must be fully aligned with the civil registry. The registrar will strictly verify this before accepting any registration or amendment. If the address used for registration is already registered for at least five other companies, the company must submit a consent letter from the person authorized to allow use of the principal office, along with supporting documents proving the right to use the address. Signatory Certification Compliance Duties Persons certifying directors’ signatures on registration forms are responsible for verifying their identities, maintaining up-to-date information, and complying with the requirements of the DBD’s Biz Regist digital registration system. Certain supporting documents proving the qualifications of certifying persons are also required, with some exceptions for specific professional roles. Identity and qualification verification must be renewed upon the completion of one year from the date of registration as a certifying person, or if the certification credentials expire before the one-year period ends, in accordance with the verification requirements. Verification of Suspicious Parties Any partner, shareholder, or director linked to a predicate offense will be required to meet with the registrar in person for further verification steps. For all parties related to a company
Read More