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Overview

Thailand’s largest and most highly regarded independent law firm.

Since 1890, Tilleke & Gibbins’ head office has been located in Bangkok, Thailand’s capital and a regional center of commerce. From our offices in Bangkok, we serve the drivers of the regional economy, from regional operating headquarters to manufacturing conglomerates to new entrants in the Southeast Asian market.

Our Bangkok office offers unparalleled legal representation in the areas of commercial transactions and M&A, corporate services, dispute resolution and litigation, and intellectual property. We are also recognized by independent third parties for excellence in the fields of tax, regulatory affairs, transportation and logistics, technology, and banking and finance.

As a proudly independent regional firm, Tilleke & Gibbins is unique for our dedication to Thailand and Southeast Asia. It’s not just a market, but our home as well. Besides housing one of the best legal libraries in Thailand, our Bangkok office is home to our Museum of Counterfeit Goods, which educates visitors on intellectual property protection and enforcement, and our Textile Collection, which showcases our support for the cultures of the region by bringing together, preserving, and displaying over 2,000 pieces from different regions and ethnic groups in Thailand and Southeast Asia.

Experience

  • Successfully represented multiple clients in historic damages award judgements in complex IP litigation cases, including securing three judgments which respectively represent the highest-ever damages awards in Thai legal history for patent, industrial design, and trademark infringement cases—in all three instances beating records that were also previously set by Tilleke & Gibbins.
  • Representing a number of international creditors, including aircraft lessors, global banks, and credit card companies, in the landmark restructuring of national flag carrier, Thai Airways.
  • Acted for a global chemical manufacturing giants on the Indochina elements of a vast global acquisition and USD 1.6 billion asset swap with another leader in the sector, including extensive multijurisdictional due diligence, advice on antitrust and competition law, and advising on a number of post-acquisition matters.
  • Represented a major Thai bank in a multimillion dollar arbitration over delays to the construction of a landmark skyscraper project in Thailand.
    Advising many of the world largest technology companies, insurers, banks and financial services operators, and professional services companies on their compliance with Thailand’s Personal Data Protection Act, including carrying out compliance gap analysis, formulating implementation plans, and implementing compliance procedures across their Thai and global operations.
  • Retained by Marsh & McLennan Group to assist with all legal matters in mainland Southeast Asia, including market entry, M&As, joint ventures, business collaborations, insurtech offerings, product launches, cross-border insurance, and corporate secretarial services, among others.
  • Represented a multinational supplier to the petroleum industry in the establishment of their Thailand operations. In establishing their base of operations in Southeast Asia, we developed a flexible approach to provide for continued growth of the business in the region, and to minimize tax exposure for the company.
  • Appointed to manage the full global IP portfolio for Sundaram Clayton, a leading supplier of aluminum and magnesium castings to the automotive industry. Notably, the portfolio includes over 2,000 trademarks and more than 400 patents in 98 countries worldwide.
  • Worked with Thai government authorities to assist in the recovery of over USD 100 million of assets dishonestly expatriated from the country in one of the highest-profile fraud cases in Thai legal history.
  • Defended a leading global logistics company in three separate criminal actions brought by the Thai Customs Department with potential fines in excess of USD 15,000,000. After a defense put forth at the prosecutorial review stage, the Public Prosecutor issued non-prosecution orders in favor of our client. These orders have since been confirmed and this case is final.
  • Helped a manufacturer establish a subsidiary for the purpose of relocating its production facility to Thailand in a Board of Investment promoted investment project with a value of more than THB 100,000,000. We reviewed the joint venture agreement and advised on corporate law, relevant regulations, and necessary permits, before conducted a thorough review of the deposit agreement, land purchase and sale agreement, and utilities service agreement, and representing the client in the completion of the project.
  • Represented a major U.S. telecommunications and software vendor in negotiations with five Thai mobile telecom operators to deploy mobile number portability (MNP) in Thailand. We successfully negotiated the deal to full deployment, which included a build operate and agreed optional transfer build out. We also handled the formation of the client’s Thai subsidiary and associated visa/work permits and required Thai bank guarantees. MNP is now up and available in Thailand, and we continue to advise the client on mobile virtual network operator regulations and the offering of SMS services.
  • Advised the Thai subsidiary of a major Japanese automaker on a number of claims related to allegedly defective airbags. The claimants argued that they were injured after airbags deployed with excessive force when they were involved in accidents while driving the automaker’s vehicles. The claimants claimed damages and demanded that our client initiated recalls of its vehicles in Thailand. Through our representation, all cases were successfully settled for a nominal amount.

PROFESSIONALS

RELATED INSIGHTS

September 1, 2026
Thailand has taken another step toward liberalizing its foreign business framework, exempting additional service activities and derivatives brokerage or agency businesses from the licensing requirements of the Foreign Business Act (FBA). Since the FBA came into effect, Thailand has taken a measured approach to opening its economy to foreign investment. While the FBA regulates foreign participation in businesses that may affect domestic interests, the framework has also evolved to allow foreign participation in certain business activities where sector-specific laws and regulatory frameworks already provide sufficient oversight, making additional FBA restrictions unnecessary. This is particularly true where Thai businesses are sufficiently capable of competing in certain service sectors, or where liberalization is intended to facilitate the provision of services among companies within the same corporate group. Against this backdrop, two new ministerial regulations have been issued pursuant to the FBA. Service Businesses Under the FBA Under the FBA, certain categories of business are restricted for foreign operators. List 3 of the FBA sets out businesses that foreigners may operate only if they obtain a foreign business license (FBL) or a foreign business certificate (FBC), or unless a specific exemption applies. List 3 (21) covers “other service businesses,” which is a catch-all provision that captures a wide range of service businesses not specifically enumerated elsewhere in the FBA. In practice, this means that most service activities carried on by foreigners in Thailand require an FBL or FBC unless otherwise exempted. Notwithstanding the foregoing, the FBA provides a mechanism to address this breadth by empowering the Minister of Commerce to issue ministerial regulations excluding specific types of service businesses from List Three (21). Once a service business is so excluded, foreigners may operate it without obtaining an FBL or FBC. Prior to the new regulations, four ministerial regulations had been issued to
August 31, 2026
Thailand has introduced a new regulatory framework that may expose foreign nationals who violate the Foreign Business Act (FBA) to deportation. The Regulation of the Office of the Prime Minister on Deportation B.E. 2569 was published in the Government Gazette on August 27, 2026. The regulation establishes an administrative process for referring foreign nationals for deportation where this is deemed necessary in the interests of public order or public morality. It does not create new substantive deportation powers, but it expressly identifies unlawful business conduct under the FBA—including nominee arrangements—as grounds for referral. Grounds for Deportation Referral The regulation sets out five grounds that may give rise to a referral to the relevant authorities: Unlawful entry into, or unlawful stay in, Thailand in violation of immigration laws. Unlawful employment or engagement in work in violation of laws governing the employment of foreign nationals. Carrying on business in violation of the FBA, including through the use of nominee arrangements. Forging official documents or using forged official documents. Committing an offense punishable by imprisonment of five years or more. The framework takes a broad approach, extending not only to the perpetrators of these acts but also to those who facilitate, instigate, or otherwise support such acts. Deportation Risk Following a Criminal Judgment Where a foreign national has committed any of the above offenses and has fully served the sentence imposed pursuant to a final judgment, the interior minister has the power to order deportation. This power also applies where a court has issued a final judgment sentencing a foreign national to imprisonment but has suspended the execution of the sentence, or has imposed a fine. A deportation order may also specify a period during which the foreign national is prohibited from reentering Thailand. FBA Noncompliance: Broader Consequences Noncompliance with the FBA—including
August 27, 2026
It is generally understood that patents are granted for new designs that have not been widely known or used in Thailand and not been disclosed anywhere prior to the date of the patent application. It is trite law that design law protects the distinctive appearance or products. Under Section 3 of the Thai Patent Act B.E. 2522, as amended by the Patent Act (No. 2) B.E. 2535 and the Patent Act (No. 3) B.E. 2542, a design is defined as “any form or composition of lines or colors that gives a product a special appearance and can serve as a pattern for an industrial or handicraft product.” This raises an important question. Can a patent be issued for a product design that contains text, numerals, trademarks, or symbols that do not fall under the definition of a design? This issue commonly arises when attempting to register packaging, labels, and graphical user interfaces (GUIs). Until a few years ago, applicants could file design applications with the Thai Patent Office for designs that contained such elements, provided that an appropriate disclaimer was included. This practice was generally accepted by Thai design examiners at that time, but the Patent Office has since implemented a change in its practice that could have a significant impact on applicants for design patents. Where design representations are submitted as line drawings or computer-aided design (CAD) drawings, the examiner may now issue an office action requiring their removal. This practice, however, appears to be applied inconsistently, as some examiners still exercise their own discretion in determining whether drawings containing these elements are acceptable. Below are examples of a GUI design, a CAD drawing design, and a photographic design representation that illustrates issues relating to the presence of nonallowable elements. GUI design For this GUI design, the submitted
August 27, 2026
The Bank of Thailand (BOT) is seeking public feedback on a proposed overhaul of the regulatory framework for licensed money changers authorized by the finance minister, under the Exchange Control Act, to buy and sell foreign banknotes separately from commercial banks and specialized financial institutions. The BOT published the draft principles on August 19, 2026, for public consultation, with comments accepted through September 18, 2026. If adopted in its current form, the new framework would substantially raise licensing standards, require existing licensees to undergo a review and upgrade process, temporarily freeze new applications in 2027, and reduce application intake rounds from 2028 onward, with significant implications for both existing operators and prospective new entrants. The overhaul initiative stems from the BOT’s recognition of a need to prevent the use of licensed money changers as channels for financial crime. The stated objectives are to build public confidence, ensure the safety of financial service users, and align the supervisory framework with the current risk profile of the business and evolving market conditions. Upgraded Licensing Standards The BOT intends to significantly revise the licensing framework, including requirements relating to registered capital, branch management, operational standards, and customer transaction limits. Detailed criteria have not yet been released and are expected to be subject to further consultation. All existing licensees will be required to upgrade to meet the new standards and submit evidence of compliance for BOT review on a case-by-case basis. Existing licensees that are unable to satisfy the upgraded requirements may face regulatory consequences, subject to the final framework and BOT review process. Freeze and Reopening The BOT will temporarily stop accepting new license applications throughout 2027 to focus resources on inspecting and upgrading existing money changers. Any party wishing to obtain a new money changer license must submit its application by
AWARDS & RANKINGS
May 14, 2026
Asian Legal Business (ALB) has published the ALB Asia IP Rankings 2026, the latest edition of its annual guide recognizing leading intellectual property firms across the region. Continuing the approach introduced last year, the rankings present a unified table in each jurisdiction, combining patent and trademark/copyright work to provide a more holistic view of the IP market. Tilleke & Gibbins has retained strong rankings in all three jurisdictions covered by the survey: Thailand: Tier 1 Vietnam: Tier 1 Indonesia: Tier 2 The rankings are based on work conducted between February 2025 and February 2026, covering both ongoing and completed contentious and noncontentious matters. ALB’s research draws on firm submissions, client feedback, editorial resources, and market input to identify the region’s leading IP practices. Tilleke & Gibbins’ IP team has maintained a strong track record across all ranked jurisdictions since the inception of the ALB IP Rankings in 2018. To view the full rankings, please see the May 2026 issue of ALB.
May 11, 2026
Tilleke & Gibbins has continued to show excellent performance in the recently released Benchmark Litigation 2026 rankings for dispute resolution firms in the Asia-Pacific region. The rankings include two jurisdictions where Tilleke & Gibbins is active: Thailand and Vietnam. Firm Rankings A full summary of the firm’s rankings is provided below: Thailand Commercial & Transactions – Tier 1 Government & Regulatory – Tier 1 Labor & Employment – Tier 1 Intellectual Property – Tier 1 Trade & Customs – Tier 2 Vietnam Commercial & Transactions (Foreign Firms) – Tier 1 Intellectual Property (Foreign Firms) – Tier 1 Labor & Employment (International Firms) – Highly Recommended (top tier awarded in this category) White Collar Crime – Recommended (top tier awarded in this category) Energy & Construction (Foreign Firms) – Tier 2 International Arbitration – Tier 2 Individual Rankings The 2026 edition also recognizes 12 Tilleke & Gibbins lawyers in Thailand—more than any other firm in the jurisdiction—and four in Vietnam. Thailand Alongkorn Tongmee – Trade & Customs Chitchai Punsan – Commercial & Transactions Chusert Supasitthumrong – Labor & Employment John Frangos – Commercial & Transactions Noppramart Thammateeradaycho – Shipping Nuttaphol Arammuang – Intellectual Property Piyawat Vitooraporn – Commercial & Transactions Pongpalin Chantrapirom – Commercial & Transactions Suebsiri Taweepon – Intellectual Property Suruswadee Jaimsuwan – Commercial & Transactions Thawat Damsa-ard – Commercial & Transactions Tiziana Sucharitkul – Commercial & Transactions, Government & Regulatory Vietnam Duc Anh Tran – Commercial & Transactions Linh Duy Mai – Intellectual Property Loc Xuan Le – Intellectual Property Tu Anh Tran – Commercial & Transactions Benchmark Litigation’s annual research is based on interviews with dispute resolution specialists and clients, as well as analysis of recent casework and market developments. To view the full results, please visit the Benchmark Litigation websites for Thailand and Vietnam.
April 16, 2026
Tilleke & Gibbins has been recognized in the In-House Community (IHC) Firms of the Year 2025, with acknowledgments across a broad range of practice areas in Thailand and Vietnam. The results are based on feedback from in-house counsel across Asia Pacific, reflecting client perspectives on the quality and responsiveness of legal services. In Thailand, the firm received recognition in 13 categories, including 12 Firm of the Year awards and one Honorable Mention. The Firm of the Year recognitions cover: Antitrust / Competition Capital Markets Corporate & M&A Employment Energy & Projects Intellectual Property International Arbitration Litigation & Dispute Resolution Restructuring & Insolvency Taxation Technology, Media & Telecommunications Most Responsive International Law Firm – Thailand The firm also received an Honorable Mention for Real Estate & Construction. In Vietnam, Tilleke & Gibbins was recognized in seven categories. The firm received Firm of the Year awards in: Employment Intellectual Property Litigation & Dispute Resolution Technology, Media & Telecommunications Most Responsive International Law Firm – Vietnam In addition, the firm received Honorable Mentions for International Arbitration and Real Estate & Construction. The IHC Firms of the Year recognitions are based on voluntary survey responses, client feedback, testimonials, and independent research conducted by the IHC team, rather than a submission-based or benchmarking methodology. While not intended to be exhaustive, the results provide a useful snapshot of client sentiment within the in-house legal community. The full results are available on the IHC website.

Bangkok Office

Bangkok Office

Supalai Grand Tower, 26th Floor, 1011 Rama 3 Road, Chongnonsi, Yannawa, Bangkok 10120