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

June 10, 2016

Proposed Amendments to Thailand’s Trade Competition Act

Bangkok Post, Corporate Counsellor Column

Recently, the Cabinet passed a resolution that amends Thailand’s Trade Competition Act B.E. 2542 (1999). The draft amended law has since been submitted to the National Legislative Assembly for further consideration. Businesses should be aware of and prepare for the major changes ahead, as the newly proposed law may become effective at the end of this year.

The Office of Thai Trade Competition Commission (OTCC) is the main enforcer of Thailand’s Trade Competition Act. Overall, the Act aims to regulate fair competition among business operators in the following key areas:

  • Unlawful exercise of market dominance;
  • A merger which may form a monopoly, causing unfair competition;
  • Collusion which forms a monopoly, restricting competition; and
  • Catch-all unfair trade practices.

The amended Trade Competition Act introduces more stringent and extensive provisions as well as higher penalties for violations. The Act, as currently drafted, will introduce the following key amendments:

The definition of “Business Operator” will be broadened.  Under the draft, “Business Operator” now includes affiliate companies as well as group companies. If a company within a company group engages in anticompetitive practices, the OTCC would focus its investigation on the entire group of companies, not only the individual company.

Violations committed outside Thailand are punishable.  Any violations of the Act which are committed outside of Thailand, whether partly or fully, that have an anticompetitive effect on Thailand would be punishable in Thailand. As a result, companies that previously relied on territorial divides to engage in anticompetitive behavior from overseas which have an anticompetitive effect on Thailand could now be subject to punishment in Thailand.

OTCC must be notified of certain merger activities.  The OTCC will be notified of merger activities that may cause a substantive reduction in competition prior to the merger, and the relevant financial statements will be continuously filed at the OTCC for it to monitor the effect of the merger for three consecutive years.

Criminal penalties will be adjusted.  There will be criminal penalties for certain violations of the Act. A fine may amount to 20 percent of a company’s revenue in the year of the violation. This has the potential to result in significantly higher fines. If there is a violation of the OTCC’s order, administrative sanctions may be imposed and the OTCC will determine the fine.

The OTCC, at its discretion, may decrease the fines imposed on business operators that are not the main actors in collusion or restriction of competition causing severe impact to the market, if they cooperate with the OTCC to provide substantial evidence of the violation.

State enterprises will be subject to the Act.  Under the current Act, state enterprises were immune from the provisions of the Act. Under the amended Act, however, they will not be immune unless they fall within exceptions that are granted to state enterprises in the fields of national security, public benefit, common interest, and public utility.

State enterprises that are subject to the Act and engage in anticompetitive practices may incur both criminal and civil penalties. This is because the private sector would be competing with these state enterprises.

The definition of “Market Dominant Operator” will be reviewed periodically. Under the existing Trade Competition Act, the criteria to be classified as a “Market Dominant Operator” (MDO) are as follows:

  • Any Business Operator in any particular goods or services market which has a market share in the previous year of 50 percent or more and has a sales turnover of at least THB 1 billion; or
  • Any Business Operator falling within the top three Business Operators in any particular goods or services market which together have a market share in the previous year of 75 percent and sales turnover of at least THB 1 billion (unless one of these three Business Operators has a market share in the previous year of lower than 10 percent or sales turnover of less than THB 1 billion).

Under the draft law, this longstanding definition of “Market Dominant Operator” (MDO) will be reviewed and revised at least once every five years. The OTCC is empowered to determine the criteria to be classified as an MDO.

If a Business Operator is classified as an MDO, its obligations and scrutiny under the Act would be higher. For example, Section 25 of the Act, which prohibits unreasonably fixing or maintaining purchase or sale prices of goods or fees for services, only applies to MDOs. Business Operators should therefore keep abreast of the Act’s amendments to determine whether or not they are classified as an MDO, as they may be subject to more provisions.

Companies face much heftier fines for violations of Thailand’s Trade Competition Act. Business owners should therefore ensure that they fully understand and comply with the amended Act. The OTCC is undergoing structural reform to increase its impartiality and independence in terms of personnel. The prospect of an increased budget for the OTCC is also on the horizon, which will enable the OTCC to more effectively enforce trade competition laws and regulations in Thailand.

RELATED INSIGHTS​ 

September 14, 2026
On August 23, 2026, Vietnam’s National Assembly passed Law No. 11/2026/QH16, amending the country’s Customs Law with effect from March 1, 2027. The amendments represent a substantial reform of Vietnam’s customs-based intellectual property enforcement regime. The reforms come amid considerable external pressure. In its 2026 Special 301 review, the US Trade Representative (USTR) designated Vietnam a “priority foreign country,” citing widespread counterfeiting, weak border enforcement, limited ex officio customs powers, and the absence of controls over goods in transit. Vietnam’s legislative response signals a commitment to bringing its border enforcement practices into line with international expectations. For IP rights holders operating in or through Vietnam, the amended law introduces several tools that substantially strengthen enforcement options at the border. Closing the Transit Gap One of the most consequential amendments is the extension of IP-related customs enforcement to goods in transit. Previously, Vietnam’s customs regime applied IP controls only to goods being imported or exported, a gap the USTR had specifically identified as enabling infringing goods to pass through Vietnamese ports with impunity. Vietnam’s geographic position as a logistics hub for Southeast Asia means that substantial volumes of goods transit its ports and free-trade zones. Extending enforcement to cover these shipments brings Vietnam closer to the standard set by the EU’s customs enforcement regulation and addresses a longstanding concern of multinational brand owners whose goods are frequently counterfeited in the region. Strengthened Suspension and Ex Officio Powers The amended law introduces a dual-track suspension mechanism (Article 73(2)). Customs authorities will suspend clearance upon request by an IP rights holder (or authorized representative) who provides evidence of IP ownership, evidence of infringement, and a financial guarantee. Customs can now proactively suspend clearance on an ex officio basis if, during inspection and monitoring, they discover “clear grounds” to suspect that imported, exported,
August 20, 2026
As part of its membership in Lex Mundi, Tilleke & Gibbins has released the latest edition of its Guide to Doing Business in Thailand, providing an overview of the legal, regulatory, and commercial considerations for companies establishing or expanding operations in Thailand. The 2026 edition offers practical insight into the country’s business environment, investment framework, and operational requirements. The guide covers a wide range of topics relevant to foreign and domestic investors, including: Investment incentives and promotion schemes Financial facilities and banking regulations Exchange controls and money transfers Import and export regulations Business structures and incorporation options Requirements for establishing a business Operational and compliance considerations Business cessation and insolvency procedures Employment and labor laws Taxation Immigration and visa requirements Prepared by Tilleke & Gibbins lawyers across multiple practice areas, the publication outlines key aspects of doing business in Thailand, including foreign investment restrictions, regulatory compliance obligations, corporate structures, employment requirements, and recent legal and economic developments affecting investors. The publication forms part of Lex Mundi’s Country Guides series, a global collection of jurisdiction-specific reference materials prepared by member firms around the world. Together, these guides help companies evaluate opportunities, compare regulatory environments, and plan international business activities across multiple markets. The full Guide to Doing Business in Thailand 2026 is available through the button below.
August 7, 2026
On July 31, 2026, the Trade Competition Commission of Thailand (TCCT) launched a one-month public consultation period on proposed regulatory guidelines for competition in three business segments: (1) digital platforms; (2) modern trade and credit terms; and (3) ride-hailing and on-demand delivery, including food delivery and mart/quick commerce. At the same time, the TCCT released a market report on ride hailing and on-demand delivery that is likely to influence the guidelines and their interpretation and enforcement. The consultation runs until August 31, 2026. Stakeholders have a limited window to submit practical, evidence-based input that may shape the next phase of Thailand’s regulatory framework for competition. Scope of the Consultation The public consultation targets updating existing guidance in three business sectors that have experienced transformative growth and structural change: Digital platforms: The TCCT has actively monitored this sector in recent years and has coordinated with other regulators, primarily the Electronic Transactions Development Agency (ETDA) and the Ministry of Commerce. In March 2026 the TCCT’s Guidelines on Multi-Sided Platforms and E-Commerce Businesses took effect, and in July the TCCT established a digital platform subcommittee to regulate and prevent unfair trade practices in digital platform businesses. This activity followed a TCCT market report on e-marketplace businesses in September 2025. Modern trade and credit terms: This sector was the focus of the TCCT’s 2019 Guidelines on Unfair Trade Practices between Wholesale and Retail Operators and Manufacturers or Suppliers (widely known as the “Modern Trade Guidelines”) , as well as its 2021 Guidelines on Unfair Trade Practices regarding the Credit Terms under which Small and Medium Enterprises (SMEs) Sell Products or Services to a Purchaser (also known as the “Credit Term Guidelines”), which were amended the following year. Ride-hailing and on-demand delivery (including food delivery and quick commerce): The TCCT published the Guidelines on
July 21, 2026
On July 6, 2026, Myanmar’s Ministry of Finance and Revenue introduced revised procedures governing the importation and exportation of goods and vehicles, replacing the framework that had been in place since 2017. The revised procedures were introduced in Notification No. 115/2026, which establishes updated compliance requirements and penalties for importers and exporters, covering licensing, declarations, product specifications, prior arrival of goods, and imports or exports made without the required licenses or permits. Scope Unlike its predecessor (Notification No. 6/2017), which focused primarily on import-related noncompliance, the new notification regulates both import and export activities and introduces a separate penalty schedule for export violations. Exporters are now required to ensure that their exports comply with the approvals stated in export licenses and permits, match the information declared in export declarations, and are supported by the required licenses, permits, and accompanying documents. Import Compliance and Penalties The new notification imposes several compliance requirements on importers. Importers must ensure that the country of origin, branding, labeling, and other product information are consistent with the relevant import license or permit, import declaration, and the imported goods. For vehicles and machinery, the model year must match the year approved by the Ministry of Commerce. Importers must also ensure that goods are not imported before the issuance or after the expiry of the import license or permit, and that the imported quantity does not exceed the approved amount. Failure to comply with these requirements may result in regulatory action. As for the notification’s revised penalties for noncompliance with import licensing requirements, imports made without the required import license, permit, or import declaration may be subject to fines ranging from one to three times the assessable value (AV) of the goods, depending on the category of goods involved. Certain vehicles and machinery, as well as specific