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February 8, 2023

Thailand’s Competition Law and Regulations: Background and Outlook for 2023

Thailand has a robust legal framework for competition, with laws and regulations in place to prevent anticompetitive conduct and market concentration and to promote fair competition. However, as the business environment in the country continues to evolve, it is important for companies operating in Thailand to stay informed about the latest developments in competition laws and regulations.

Generally, Thailand’s competition regime is based on the Trade Competition Act B.E. 2560 (2017) (the TCA) and its implementing regulations, except for certain industries which are governed by sector-specific competition regulations. The TCA is designed to promote free and fair competition by suppressing anticompetitive behaviors.

In this article, we will examine what businesses can expect in the coming year, and what they need to be aware of in order to stay compliant.

A Maturing Regulatory Structure

The Trade Competition Commission of Thailand (TCCT) is the agency responsible for enforcing competition laws and regulations in Thailand. The TCCT has the authority to oversee the market structure, act to maintain competitiveness in various industries, investigate misconduct, and take action against companies that engage in anticompetitive practices, such as abuse of market dominance, cartels, and unfair trade practices. It also has discretionary power to consider applications for a merger of two or more businesses that may cause monopoly or market dominance.

While the TCA and the TCCT had limited success in the decades after the original TCA’s enactment in 1999, a new TCA in 2017 made several significant changes to the previous version of the law. The 2017 TCA guarantees the independence of the TCCT from political and business interventions. It also introduces administrative penalties for less-serious offenses, including non-hardcore cartels, unfair trade practices, and neglect of merger filing duties.

Since then, the TCCT has been more active in its issuance of subordinate regulations to optimize the functionality of TCA provisions. A number of business-specific guidelines adopted from time to time address competition concerns in certain business sectors, such as modern trade, franchises, and food delivery services. The TCCT has also issued rules that purchasers must follow when setting credit terms for SMEs (small and medium enterprises).

The level of enforcement has also escalated, evidenced by more than 60 cases determined and concluded during 2019–2021—mostly regarding merger filings and unfair trade practices. In recent years, the TCCT has had oversight of several high-profile mergers, issuing remedies and closely keeping track of the companies’ business conduct to ensure compliance with fair trade and competition requirements. The administrative office of the TCCT has also accomplished the first proactive investigation procedures involving unannounced inspections, commonly known in some jurisdictions as “dawn raids,” conducted at the accused’s premises to obtain useful evidence for cartel misconduct.

TCCT’s academic role has also been well recognized. The TCCT has conducted market studies of many emerging industries, such as e-commerce and marketplace platforms, to understand business practices and identify potential anticompetitive behaviors. The TCCT also acknowledges that the TCA should not stop evolving in today’s complex economy. In collaboration with the Thailand Development Research Institute, the TCCT studied whether and how to improve the TCA and its enforceability, resulting in the proposal of significant amendments to the TCA.

The regulatory structure of Thailand’s competition regime has matured a great deal in the past five years. This increased reliability is likely to continue in 2023 as the TCCT looks to deal with concerns about today’s market conditions.

TCCT and Emerging Issues

One of the key areas of focus for the TCCT in the coming year will be the digital economy. With the rapid growth of e-commerce and online platforms, the TCCT will be closely monitoring the growing market power of these operators to ensure that competition is fair and that consumers’ selection of goods and services is not manipulated. This is particularly important as the COVID-19 pandemic has accelerated the shift to what the Thai government has called the “platform economy.” Recognizing that some plaftform operators’ conduct and trade conditions could damage competitors and trade partners, or restrict consumers’ choices, the TCCT set out to develop a new set of regulations and strategies to address these competition concerns. In this regard, the TCCT may adopt new legislation modeled on the Digital Markets Act of the European Union to more efficiently tackle anticompetitive conduct by digital marketplaces and online gatekeepers.

One of the TCCT’s missions in the year ahead will be to revitalize its existing regulations. The TCCT is prepared to raise the threshold for determining whether a company is in a position of market dominance, in light of the country’s economic growth and heightened inflation. Another area of focus is amendments to enhance the clarity of merger control rules and to extend the scope of control to certain types of mergers such as a full-function joint ventures, which are not yet clearly regulated under the current rules.

In terms of enforcement mechanisms, the TCCT is studying the possibility of implementing a leniency program that would grant immunity to whistleblowers who expose collusive arrangements. This leniency program would be a highly useful instrument for the TCCT in detecting cartels, similar to the success of leniency policies in exposing collusion in the United States, the European Union, Japan, and other jurisdictions.

Conclusion

Overall, businesses operating in Thailand can expect the TCCT to continue its efforts to promote fair competition and to intensify the level of enforcement in the coming year, with a particular focus on the digital economy and merger control. Companies should stay informed about the latest developments in competition laws and regulations and seek legal advice when necessary to ensure compliance. While competition is just one of the many areas of compliance that businesses have to uphold, enlisting outside assistance in maintaining a healthy and resilient presence in the market can greatly ease the burden.

RELATED INSIGHTS​ 

March 30, 2026
On March 24, 2026, the Trade Competition Commission of Thailand (TCCT) published its long-anticipated Guidelines on Multi-Sided Platforms and E-Commerce Businesses in the Government Gazette, following the conclusion of a public hearing conducted last year. The guidelines entered into force on March 25, 2026, and significantly expand the application of Thai competition law to digital platform ecosystems. These rules introduce targeted restrictions on platform conduct, such as price-ranking algorithms and tying and bunding, that leverages network effects, and will have far-reaching implications across Thailand’s digital economy—affecting not only platform operators but also platform participants, including sellers, logistics providers, advertisers, and payment service providers operating on or alongside such platforms. The guidelines clarify how existing prohibitions under the Trade Competition Act B.E. 2560 (2017) (TCA)—including abuse of market dominance, cartel conduct, and unfair trade practices—apply in the context of platform-based business models. While many provisions reflect earlier draft guidelines, the final version delivers more precise definitions and clearer enforcement parameters, increasing regulatory certainty while also raising compliance expectations. Applicability The guidelines introduce core definitions that determine their coverage: Multi-sided platform: A platform that acts as an intermediary connecting two or more groups of users, enabling them to have direct interaction in order to exchange or rely on services from one another. Examples include digital platforms for trading goods or services (e-commerce), as defined below. Digital platform for trading goods or services (e-commerce): A platform that acts as an intermediary connecting the distribution, purchase, sale, or exchange of goods or services. This includes operations carried out to facilitate transactions or interactions between business operators through an electronic transaction system, regardless of whether a service fee is charged. Operator of a digital platform business for trading goods or services: A provider of digital platform services for trading goods or services, as described
March 27, 2026
Thailand’s National Broadcasting and Telecommunications Commission (NBTC) has publicly indicated that it is preparing a new regulatory framework for data center operators that may introduce foreign-ownership restrictions. In particular, the NBTC is considering reclassifying data center operations from a type 1 telecommunications business license to a type 3 license. If implemented, this change would subject data center operators to a significantly more stringent regulatory regime, especially in relation to foreign ownership and control. The NBTC has indicated that it intends to propose a draft framework to the NBTC board. This would be followed by a public hearing process, with a view to implementing the new rules within 2026. Under the Telecommunications Business Act B.E. 2544 (2001), as amended, telecommunications businesses operating under type 3 licenses are subject to foreign ownership restrictions, including a requirement that less than 50% of the total issued shares be held by foreign shareholders. In addition, type 3 licensees are subject to foreign dominance restrictions, which prohibit arrangements that allow foreigners to dominate the business. These foreign dominance restrictions are broad in scope and may capture various forms of direct and indirect control or influence. This includes circumstances in which a foreign national is able to influence or control the formulation of policy, management, or business operations, or the appointment of directors or senior executives. At this stage, the exact scope of the proposed rules remains unclear. Businesses with existing or planned data center operations in Thailand should therefore monitor upcoming NBTC developments in this regard and prepare for the expected public hearing process.
March 23, 2026
In March 2026, the Myanmar Investment Commission (MIC) introduced two regulatory updates affecting investors planning new investments or implementing MIC-approved projects. Minimum Investment Conditions for Tax Incentives MIC Notification No. 1/202 clarifies the minimum conditions for investments in promoted sectors to qualify for tax exemptions or relief under the Myanmar Investment Law. The notification establishes the following requirements: Investors must contribute at least 35% of the total investment amount in cash, as reflected in the relevant proposal or endorsement application. Where an investment involves a foreign loan, the investor must obtain approval from the Central Bank of Myanmar, together with a loan repayment schedule, and provide evidence that both the foreign loan proceeds and the capital contribution have been remitted in cash through an authorized dealer bank. Chinese Yuan Accepted for Investment Capital The MIC also issued Investment News Bulletin No. 1/2026, confirming that Chinese yuan (CNY) is now accepted as foreign investment capital for applications for MIC permits and endorsements, in addition to US dollars (USD). Investment funds contributed in CNY may be remitted through banks authorized to deal in foreign currency in CNY, following the same process currently applied to investments made in USD. These developments may affect how foreign investment capital is structured and remitted, as well as the availability of tax incentives for investments under the MIC framework.
March 20, 2026
Thailand’s Board of Investment (BOI) now requires data center projects to demonstrate measurable benefits for local workforce development, R&D, SME capability, and domestic supply chains to qualify for corporate income tax (CIT) exemptions. BOI Notification No. Por. 3/2569, issued on February 6, 2026, updates the requirements for projects seeking promotion under BOI category 8.2.1 (data centers). All data center projects must now submit and implement plans covering development of Thai human resources and domestic supply chain support before benefiting from any CIT exemption. Human Resources Development Plan The BOI seeks to promote local talent development beyond basic training. Plans must include the following elements: Training for data center design, construction, and operations targeting vocational students, engineering and ICT undergraduates and postgraduates, and energy and building personnel in Thailand. Joint curricula with Thai universities and technical institutes. Collaborative R&D with Thai nationals or institutions in areas including AI, resource allocation, high-performance computing, and data center hardware and systems. Thai SME upskilling in electrical and energy systems and IT services. Domestic Supply Chain Support Plan Plans must demonstrate knowledge transfer in design, construction, cooling, security, and power and water management. Projects must also include usage or installation of domestically manufactured equipment or engage specialist domestic entities. Criteria for BOI Evaluation The BOI will assess data center operators’ eligibility for CIT incentives based on two criteria: Scale requirement: Training and joint-curriculum initiatives must reach a total participants equal to at least 10 times the project headcount and run for the duration of the CIT incentive. If this threshold is not met, the applicant must also implement continuous R&D or SME skills-development plans throughout the incentive period. Substantiality test: Supply-chain plans must be substantive, meet industry standards, and show measurable development of the domestic digital and data center supply base. To ensure compliance,