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 5, 2020

Thailand’s Personal Data Protection Act: A Guide to the Partial Compliance Extension

In May 2020, the Thai Cabinet approved a royal decree granting a one-year exemption from certain provisions of the Personal Data Protection Act 2019 (PDPA), which had been scheduled to take full effect on May 27, 2020. The new decree has extended the effective date for a number of the law’s provisions to May 31, 2021.

Key Elements of the Extension

Under the decree, certain critical provisions of the PDPA are not enforceable against exempted businesses (see list below) during the extension period, including the following:

  • General requirements and obligations on data controllers. Specifically, the postponed enforcement covers consent requirements, notification requirements, establishment of lawful basis, requirements on the collection of personal data from other sources, and processing of minors’ personal data. The enforcement of a second list of requirements is also postponed, including observance of data subjects’ rights and data erasure or destruction requirements, the implementation of appropriate internal security measures to prevent unauthorized access (section 37 (1)), provision of data breach notifications, appointment of data protection officers (DPOs), filing complaints, and penalties.
  • The grandfather provision (section 95) is also within the scope of the extension. This means that personal data collected or processed during the extension period will not be subject to the requirements enumerated in the second list above when they come into force in 2021. Furthermore, this data can be retained and used after the extension period has lapsed, provided that doing so is within the original purposes stated for collecting and processing the personal data. It is especially important to note that the scope of the grandfather provision does not include disclosure of personal data or processing of personal data outside of the original purposes stated.

However, as required by section 4, data controllers must still implement a minimum level of security protection measures for personal data in accordance with the standards to be prescribed by the Ministry of Digital Economy and Society, expected later this year.

It should also be noted that the requirement for the regulator to issue supplemental notifications and regulations is not within the scope of the extension. The Personal Data Protection Commission (PDPC) is therefore expected to continue issuing these supplemental measures during the extension period.

Exempted Businesses

The list of exempted businesses, below, covers a wide range of sectors and industries, and applies regardless of location:

  • Agriculture
  • Industrial businesses
  • Commerce
  • Medical and public health businesses
  • Energy, steam, water, waste disposal, and related businesses
  • Construction
  • Repair and maintenance
  • Transportation, logistics, and warehousing
  • Tourism
  • Communication, telecommunications, computers, and digital enterprises
  • Financial, banking, and insurance enterprises
  • Real estate
  • Professional practice
  • Administration and support
  • Science and technology, academia, social welfare, and arts
  • Education
  • Entertainment and recreation
  • Security
  • Household operations and SMEs that cannot be classified
  • Government agencies
  • Foreign government agencies and international organizations
  • Foundations, associations, and religious and nonprofit organizations

What to Do Now

In addition to staying up to date on the issuance and implementation of supplemental notifications and regulations under the PDPA over the coming year, businesses should make use of the additional time to prepare for compliance. A sample framework for doing so is provided below.

Step 1: Identify the personal data currently possessed by the company

Estimated timeframe: 1–3 months

In this stage, it is important to understand the PDPA’s requirements and conduct self-assessments to identify an entity’s current and anticipated personal data processing activities. To identify the main processing activities, companies should answer the five Ws:

  • Who are the relevant data subjects and the responsible personnel?
  • What types of personal data are collected and processed, and what are the sources?
  • When is the personal data collected and updated, and how long is it retained?
  • Where is the physical and digital data stored and transferred to (i.e. within Thailand or overseas)?
  • Why is the personal data being collected or processed?

This should be a reported in an internal assessment to aid widespread understanding of the practice—especially the original purpose for collecting or processing the personal data—within the organization.

Gaps and mitigation measures should also be identified, including:

  • processing activities that require consent as the lawful basis;
  • processing activities that can rely on another lawful basis (e.g. “legitimate interest”);
  • relevant retention periods pertaining to the various types of personal data; and
  • list of data processors, the scope of their data processing activities, and relevant personal data pertaining to the activities.

Step 2: Close the gaps and monitoring for new subordinate regulations

Estimated Timeframe: 2-4 months for closing gaps, monitoring ongoing until May 31, 2021

In this stage, organizations should monitor the issuance and development of new subordinate legislation—including through public hearings—to ensure that they are aware of their compliance obligations. At the same time, it will be necessary to focus also on closing the gaps identified in Step 1 by implementing the necessary mitigation measures and putting measures in place to ensure operational compliance. This may include preparing the following:

Privacy policies for relevant data subjects. Where consent is identified as the lawful basis, consent forms must be prepared for the relevant data subjects (e.g. individual customers, employees, etc.).

  • A data processing agreement (or addendum) template to be arranged, proposed, and countersigned by the relevant data processors.
  • A record of processing activities.
  • A record of internal assessments where legitimate interest is to be relied upon as the lawful basis (noting that these should be carried out in consideration of organizational conflicts of interest).
  • Plans for a DPO or DPO team, depending on the size of the operation and quantity of personal data involved, and in accordance with the DPO qualifications prescribed by the PDPC.
  • A custom internal training program, addressing current gaps and relevant parties in the context of the new legal requirements.
  • Internal rules forbidding collection of personal data without justification or lawful basis, or that is not necessary for business operations. Any personal data of this type that is currently being processed should also be deleted at this time.

When the subordinate laws on data subject rights become publicly available, it will be necessary to examine the requirements and set up a process for managing requests to uphold data subject rights, as well as data controller and processor obligations under the PDPA.

Achieving Compliance on Schedule

By following these steps, organizations can ensure that they will be fully compliant when the extension period ends on May 31, 2021. The estimated timeframes of the various steps listed above can give an idea of how long each step will take, but the actual schedules should be determined based on the level of PDPA readiness within the organization, the scale of implementation, and any future developments of the subordinate legislation under the PDPA. Companies should work closely with local legal counsel to ensure that their compliance measures are on track, and will be effective when the law comes into force.

Tilleke & Gibbins will continue to monitor the development of the PDPA and provide updates as they emerge. If you have questions about the PDPA, or any other aspect of data compliance in Thailand, please do not hesitate to contact any member of the PDPA team, including Athistha (Nop) Chitranukroh at [email protected] or Nopparat Lalitkomon at [email protected].

RELATED INSIGHTS​ 

March 13, 2026
Vietnam’s Law on Intellectual Property (IP Law) has undergone continuous amendment in recent years, with the latest amendment issued at the end of 2025. Among the amended and supplemented provisions, the regulation that has perhaps attracted the most attention is a provision relating to the use of protected IP objects by artificial intelligence (AI) systems. Specifically, Article 7 of the 2025 IP Law introduces a completely new Clause 5, which reads in full as follows: “Organizations and individuals are permitted to use texts and data relating to intellectual property objects that have been lawfully published, and which the public is allowed to access, for the purposes of scientific research, experimentation, and training of artificial intelligence systems, provided that such use will not unreasonably affect the legitimate rights and interests of the authors and intellectual property rights holders in accordance with this Law. With respect to texts and data that are objects protected by copyright and related rights, the use of the texts and data as set forth herein must also be in accordance with the regulations of the Government.” Analyzing this newly added provision in the context of how it was conceived, as well as the challenges that still lie ahead, can provide some interesting insights. From Aspirations to Flight in Science and Technology From the end of 2024 and throughout 2025—the 50th anniversary of the country’s reunification—Vietnam witnessed numerous sweeping changes in many areas, including legislative development. It could be said that no sessions of the National Assembly have ever adopted as many laws, resolutions, and major policies as this one. The aspirations of the highest-level leadership have been concretized into major law and policy projects, which were drafted, developed, and passed at record speed. All of this was aimed at building a foundation for Vietnam to achieve
March 12, 2026
Thailand’s AI legislative framework took another step forward when the Office of the Consumer Protection Board (OCPB) issued a notification establishing guidelines for AI-generated advertising that may cause material misunderstanding about products or services. The notification, which is already in effect, was issued under the Consumer Protection Act B.E. 2522 (1979) and its amendments, which prohibit advertising that is unfair to consumers or may cause harm to society, including false or exaggerated statements and statements that may cause material misunderstanding about products or services. The notification addresses emerging advertising practices, including the use of images edited using software or AI to attract consumer interest or build credibility. The OCPB noted that such advertising may result in consumers misunderstanding the essential characteristics, condition, or usage of products, which violates consumer rights and causes damage. Key Requirements on AI-Generated or Digitally Manipulated Advertising Content For advertisements using still images or videos created or edited with software programs or AI tools that may cause the depicted product or service to differ from the actual product sold or service provided—which may cause misunderstanding regarding the condition, quality, quantity, or other essential aspects of the products or services—advertisers and business operators must comply with the following requirements: Prior authorization. Obtain approval from relevant regulatory authorities where required by law. Accurate representation. Ensure that the advertised size, quantity, volume, number, or composition matches the actual product or service being sold, whether in still images or videos. Mandatory AI disclosure labels. Display clear disclosures when AI or software is used to create or edit images, such as: “Real image or simulation edited using AI” “Photo from actual location or simulation edited using AI” “Photo from actual product or edited simulation” “Image created by AI” “Video created by AI” Clarity of disclosure. Ensure disclosures are clearly visible,
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
March 6, 2026
Thailand’s Legislation Consideration Committee of the Ministry of Interior has ruled that in-game loot boxes in online games do not constitute gambling under the Gambling Act B.E. 2478 (1935). This first-of-its-kind ruling provides useful guidance for online game operators and digital entertainment companies operating in Thailand. Background The ruling came in response to an inquiry concerning an online role-playing game operator that launched a campaign featuring a loot box mechanism. The mechanism allowed players to purchase a token in exchange for the opportunity to receive a virtual loot box containing randomized in-game items. The key features of this were as follows: The items received were digital, noncash items usable only within the game. The items could not be exchanged, redeemed, or converted into cash with the game operator. Items may differ in rarity but remain purely virtual. The central question was whether paying money to obtain randomized in-game items constituted a risk-based activity involving the chance to receive money or property of monetary value, which would constitute gambling under the Gambling Act. Committee Ruling The committee reached the following conclusions regarding the characteristics of the game’s loot-box mechanism: No cash or monetary equivalent: Players did not receive cash or property that could be exchanged for cash. The in-game items were merely usage rights within the online game ecosystem. No real-world monetary valuation: There was no determination of item value in real currency, and no mechanism for redeeming or converting items into money with the game operator. Any off-platform trading of in-game items between players is irrelevant to online game operators, as any value arising from such transactions is determined by the market rather than by the operators themselves. Service fee characterization: Payments made by players purchasing in-game loot boxes constituted fees for online game services. Accordingly, the committee concluded