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October 14, 2021

Lex Mundi Guide to Doing Business in Thailand 2021

Tilleke & Gibbins and Lex Mundi

As part of its membership in Lex Mundi, Tilleke & Gibbins has published an updated edition of its Guide to Doing Business in Thailand for 2021. This guide outlines all of the key factors for starting and operating a business in the Thai market. Issues covered include:

  • Investment incentives
  • Financial facilities
  • Exchange controls
  • Import and export regulations
  • Structures for doing business
  • Requirements for the Establishment of a Business
  • Operation of the Business
  • Cessation or Termination of the Business
  • Labor legislation, relations, and supply
  • Tax
  • Immigration requirements

This publication is part of Lex Mundi’s Guides to Doing Business series prepared by member firms in more than 100 jurisdictions worldwide. The guides serve as a useful resource when planning an international business strategy or researching a new market.

RELATED INSIGHTS​ 

March 30, 2026
In response to an emerging crisis on food safety, the government of Vietnam promulgated Decree No. 46/2026/ND-CP (Decree 46) on January 26, 2026, and Resolution No. 66.13/2026/NQ-CP (Resolution 66.13) on January 27, 2026, setting out a number of substantive changes to the procedure and strict requirements for the declaration, registration, and importation of food products. Both instruments took effect upon issuance. However, shortly after they entered into force, food businesses encountered significant implementation challenges, particularly with respect to state inspection procedures at the customs clearance stage for imported products. In response, the government issued Resolution No. 09/2026/NQ-CP (Resolution 09) on February 4, 2026, temporarily suspending Decree 46 and Resolution 66.13 until a new effective date of April 16, 2026. Continued Suspension of Implementation of Decree 46 and Resolution 66.13 After considering feedback gathered by the Ministry of Health from food businesses and other stakeholders during the suspension period, the Vietnam Government Office issued a notice on March 20, 2026, agreeing to extend the suspension until the issuance of an amended Law on Food Safety and its guiding decree. Following this notice, on March 22, 2026, the Ministry of Health prepared a draft resolution to implement the notice and replace Resolution 09. Under the draft resolution, the effectiveness of Decree 46 and Resolution No. 66.13 would continue to be suspended until the amended Law on Food Safety takes effect, except for the provisions under Resolution 66.13 allowing flexibility in documents evidencing product efficacy, which would take effect on April 16, 2026, and remain effective until the Law on Food Safety is replaced (but not later than February 28, 2027). Accordingly, for products subject to the registration declaration procedure, such as health supplements, efficacy may be substantiated by either (i) scientific evidence supporting the declared function and effects of the product
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 27, 2026
Vietnam’s emerging governance framework for artificial intelligence (AI) is developing through a multi-layered structure comprising three components: Policy instruments setting national priorities for AI development; Regulatory framework governing development, provision, deployment and use of AI; and Technical standards and voluntary guidelines. Policy level. At policy level, the foundation for a strategic framework for AI development and governance was laid in 2021 by the National Strategy for Research, Development and Application of AI until 2030, aimed at strengthening the national AI ecosystem and positioning Vietnam as a regional AI innovation hub. Subsequently, resolution No.57-NQ/TW (2024) identified AI as a key driver of science, technology, innovation and national digital transformation. AI was also designated as a strategic technology under decision No.1131/QD-TTg (2025) listing priority technologies across sectors. Regulatory framework. At the legislative level, the new Law on Artificial Intelligence took effect on 1 March 2026, establishing the core regulatory framework governing development, provision, deployment and use of AI systems. Controlled testing for emerging AI technologies is implemented under the Law on Science, Technology and Innovation. The AI Law is expected to be further operationalised through implementing instruments, most notably a draft decree guiding the AI Law, and draft decision of the prime minister identifying high-risk AI systems (both published in February 2026). A decision establishing priority datasets for AI development is also anticipated. Compliance obligations may also arise under sectoral regulatory regimes, including data protection, cybersecurity, banking, consumer protection, e-commerce and intellectual property, particularly where AI systems are used in automated decision-making or data-driven services. Technical standards and non-binding guidelines. Vietnam’s AI governance framework is also supported by technical standards and voluntary guidelines. A key instrument is decision No.1290/QD-BKHCN (2024), providing guidelines for responsible research and development of AI systems, and represents Vietnam’s first national AI ethics code. The Ministry of Science and Technology