In August 2026, Vietnam’s Ministry of Industry and Trade released a draft decree to replace Decree No. 35/2020/ND-CP detailing certain articles of the Competition Law (Decree 35). The key changes under the draft decree and their implications for M&A transactions in Vietnam are summarized below. Definition of “Management Body” Decree 35 uses the term “management body” (bộ phận điều hành) as one of the criteria to determine the group of affiliated enterprises for the purpose of merger filing. However, there is no definition of the term, leaving enterprises without a basis on which to apply it consistently. The draft decree introduces a statutory definition of “management body,” being a person or group of persons who (i) own more than 50% of charter capital or voting shares; (ii) hold ownership or use rights over more than 50% of an enterprise’s assets; (iii) are an enterprise manager under enterprise law; or (iv) have decision-making power over the enterprise’s resolutions, daily business operations, or business and investment plans. This helps enterprises better assess the scope of merger filing. Determination of Relevant Product Market Under Decree 35, the relevant product market is defined solely by reference to goods and services interchangeable in characteristics, intended use, and price without accommodating digital or zero-price products. The draft decree expands the relevant product market to include “products” (sản phẩm) in addition to traditional “goods and services,” which captures digital information products, AI products, and other novel offerings. Additionally, it adds “other relevant competitive factors” such as quality of products, goods, and services for determining the relevant product market, supplementing the existing factors of characteristics, intended use, and price. This addresses cases where price substitutability is not meaningful for certain consumers or users, i.e., zero-price products. Determination of Relevant Geographic Market Under Decree 35, only physical geographic

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.

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

On July 7, 2026, the Trade Competition Commission of Thailand (TCCT) issued a press release announcing the establishment of two new subcommittees designed to intensify oversight of digital platforms and modern trade businesses. The formation of the digital platform subcommittee marks a significant escalation in competition enforcement following the TCCT’s Guidelines on Multi-Sided Platforms and E-Commerce Businesses, which took effect on March 25, 2026. Platform operators, sellers, and related service providers should expect heightened regulatory scrutiny and potential investigations into practices already flagged under the March guidelines. Two Dedicated Enforcement Bodies The first new body is the digital platform subcommittee—formally the Subcommittee on Supervision, Monitoring, and Prevention of Trade Conduct in Digital Platform Business. It is tasked with driving intensive oversight of digital platform businesses. It will coordinate with government agencies, the private sector, business operators, and other relevant stakeholders to supervise and prevent trade conduct that may affect competition, and to promote free and fair competition in the digital platform sector. The subcommittee will be composed of TCCT members and representatives from the Department of Internal Trade. The second body—the Subcommittee on Determining Guidelines and Action Plans Concerning Competition Conditions in Modern Wholesale and Retail Business—will study, analyze, and monitor market structure in modern wholesale and retail businesses, compile databases to analyze retail business concentration, assess impacts on small-scale operators, and propose supervisory measures for the retail sector. TCCT members will serve on the subcommittee alongside experts from government and private organizations, including the Office of Industrial Economics, the Office of Small and Medium Enterprises Promotion, the Thai SME Federation, and the Thai SME Council. Operational Impact for Industry Participants These subcommittees provide the TCCT with a focused mechanism to investigate various trade practices deemed unfair, and the TCCT has authority under the Trade Competition Act to issue cease-and-desist