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

April 21, 2025

Thailand Eases Stock Buybacks with Proposed Amendment: Listed Companies Expected to Jump In

In response to the Thai stock index’s decline and market volatility, Thailand’s Department of Business Development is proposing an amendment to the country’s treasury stock rules to ease the requirements for both the implementation and the disposal of shares, as they see this as a timely opportunity to optimize the use of treasury stock as a tool to support share prices and prevent them from falling below their fundamental value.

The rules governing treasury stock for public companies are set out in the Public Limited Companies Act B.E. 2535 (1992) (PLCA), its accompanying ministerial regulation, and the relevant rules issued by the Stock Exchange of Thailand (SET). The law permits share repurchases in two circumstances: (1) to buy back shares from dissenting shareholders following an amendment to the articles of association affecting voting or dividend rights, and (2) for financial management purposes when the company has retained earnings and excess liquidity—this second scenario is more common in the market. To satisfy the excess liquidity requirement, the company must primarily demonstrate the ability to meet its debt obligations within six months, have sufficient retained earnings, and ensure that the treasury stock implementation does not breach the SET’s free-float requirement.

The SET rules prescribe that the repurchase price must not exceed 115% of the five-day average closing price at the time of repurchase, and the disposal price must not be lower than 85% of this average closing price at the time of disposal. As for the timing, treasury shares must be held for at least three months and sold within three years; otherwise, the company must proceed with a capital reduction. There is also a six-month waiting period following the finishing or canceling of a previous share buyback before a company can start a new one.

The proposed amendment will ease these timings as follows:

  • A new share buyback program can commence immediately after the prior program ends, without the current six-month waiting period.
  • The resale period can be extended by up to three additional years beyond the current three-year limit, subject to shareholder approval and market prices remaining at or below the average buyback price. This should help ease concerns regarding disposal and avoid a capital reduction if prices do not recover.

The public hearing on the amendment concluded on April 10, 2025, and the market now awaits the official outcome and implementation of the proposed amendments. Listed companies that have already implemented share buybacks will likely be able to amend the disposal period to be in line with the new regulation following certain disclosure requirements.

RELATED INSIGHTS​ 

March 10, 2026
Thailand’s Ministry of Finance and Securities and Exchange Commission (SEC) have issued regulations broadening the criteria for determining who qualifies as a “major shareholder” of licensed securities and digital asset business operators. Under relevant SEC regulations, major shareholders of a regulated entity must obtain regulatory approval and undergo screening by the SEC. The revised framework introduces both shareholding-based and control-based tests to determine which shareholders require regulatory approval for a wider range of indirect ownership structures and de facto control. The Ministry of Finance notification took effect on February 21, 2026, while the SEC’s clarifying rules took effect on March 4, 2026. These changes aim to enhance transparency around beneficial ownership and strengthen regulatory oversight of entities operating in Thailand’s capital markets. Expanded Definition Under the revised framework, a “major shareholder” now includes persons who directly or indirectly hold more than 10% of the voting rights in a regulated company, as well as persons who exercise control over the regulated company or its shares. This system of two separate tests, based on both shareholding and control, differs from the prior regime, which focused primarily on shareholding thresholds and applied a more limited method for determining indirect shareholdings. The two tests (detailed below) operate independently of each other, and any person identified by either of the tests will be deemed a major shareholder. Shareholding-Based Test Broadens Indirect Ownership Attribution For the shareholding-based test, the SEC recognizes two existing methods for identifying indirect ownership, together with a new proportional attribution method. Any person captured under these methods, which are described below, will be regarded as a major shareholder of the regulated company and must obtain SEC approval as a major shareholder. First, the existing framework continues to apply to both first-tier and chain ownership structures. Approval is required for (1) first-tier
February 19, 2026
Thailand’s Securities and Exchange Commission (SEC) has overhauled its approach to related-party transactions (RPTs) by issuing new rules that simplify approval processes while expanding oversight. Capital Market Supervisory Board Notification No. TorJor. 46/2568 will replace the longstanding Notification No. TorJor. 21/2551, which has governed RPT compliance for over a decade. The new regulation takes effect on July 1, 2026. Any RPT matters approved by a company’s board of directors or approved for shareholders’ approval before that date remain subject to Notification No. TorJor. 21/2551. The new RPT rules will introduce significant changes that market participants should carefully consider. Consolidated Definitions Under the previous framework, key definitions relevant to RPT compliance were dispersed across multiple sources, including SEC notifications, Stock Exchange of Thailand (SET) regulations, and provisions of the Securities and Exchange Act (before amendments). The new regulation consolidates these definitions into a single notification. Concepts such as “related party” and “connected person,” as well as relevant transaction categories, are now more systematically organized and written in greater detail. The SET has yet to issue corresponding regulations, which should include more detailed related disclosure requirements. Unified Threshold and Mandatory Board Approval The most significant change under the new regulation is the elimination of the multitiered approval framework based on transaction type. Instead of various categories, transactions are now classified as either (1) financial assistance provided to related persons, or (2) other RPTs in order to determine the level of corporate approvals and disclosures for each transaction size in these categories, but the concept remains the same. Under the previous regulation, RPTs were divided into small, medium, and large transactions, with differing approval requirements. The new regulation effectively merges the small and medium categories. As a result, all RPTs must now be approved by the board of directors as a baseline
February 19, 2026
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
January 16, 2026
As the Thai stock market faces a downturn, Thai investors have shown increased interest in depositary receipts (DRs), which offer the same tax benefits as Thai stocks while providing access to foreign securities. However, recent speculation in the media has raised concerns among regulators and the market, raising questions about whether DR issuers actually hold the underlying foreign securities purported to be backing the DRs. This has brought the structural integrity of DR programs under scrutiny. Why This Question Matters In global practice, DRs are understood to be backed by the foreign securities they reference, giving investors economic exposure that closely mirrors direct ownership. When the issuer does not hold the underlying securities directly, the risk profile shifts to the strength of its custodial, hedging, and liquidity arrangements. Those arrangements determine whether DR holders receive equivalent economic and voting rights, how corporate actions are transmitted, and whether conversions or redemptions can be completed in full and on time. In Thailand, the standardized DR disclosure templates and the express allowance for global custodians indicate a regulatory focus on transparency and structural safeguards that preserve these outcomes, even if the issuer’s name does not appear on the foreign share register. Thai Rules for DR Offerings Thai DR offerings are governed by specific Securities and Exchange Commission (SEC) notifications and standardized prospectus forms. These instruments establish the disclosure regime for DR structures, risk factors, and the issuer’s arrangements to support the DR program. The framework expressly contemplates the use of a global custodian, indicating that DR issuers are not required to hold the underlying foreign securities directly in their own name if sufficient controls and operational arrangements are in place for the issuer to deliver economic benefits and, where applicable, underlying securities to DR holders when required. More broadly, the relevant SEC