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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 11, 2026
Thailand’s National Broadcasting and Telecommunications Commission (NBTC) has published a new five-year master plan that will bring significant regulatory changes to the broadcasting and digital media sectors, including formal licensing requirements for internet-based audiovisual services. The Master Plan for Broadcasting and Television, 3rd Edition (B.E. 2569–2573/2026–2030) was published in the Government Gazette on September 1, 2026, and will affect OTT platforms, internet-based audiovisual service providers, and traditional broadcasters. Licensing Reform The NBTC will develop new licensing frameworks ahead of existing digital television license expirations, which are slated to occur between 2028 and 2030. This creates both uncertainty and opportunity for incumbents and new market entrants. New licensing criteria will also be developed for audiovisual services delivered over the internet, meaning previously unregulated internet-based providers may face licensing, fee, and content obligations for the first time. The plan also calls for a new law to govern converged communications services. OTT Regulation and Content Oversight The plan explicitly acknowledges and aims to lessen the regulatory asymmetry between traditional broadcasters—which are subject to licensing, fees, and content regulation—and internet-based services that currently face fewer obligations. The NBTC intends to develop regulatory frameworks to bring internet-based audiovisual services, including OTT platforms, streaming services, and user-generated content platforms, under content, consumer protection, and licensing requirements. Consumer Protection and Digital Rights The NBTC will strengthen its oversight of broadcasting, television, and telecommunications operators to ensure compliance with consumer protection and personal data protection requirements. This includes updating relevant notifications and orders and more strictly enforcing rules against practices that unfairly exploit consumers. These measures may layer NBTC-specific requirements on top of Thailand’s existing Personal Data Protection Act obligations. Stricter enforcement against practices that exploit consumers is a priority, with particular scrutiny on advertising practices. The NBTC will modernize complaint resolution processes, meaning service providers should
September 9, 2026
On August 5, 2026, the Consumer Case Division of Thailand’s Civil Court rendered a judgment in a case involving a beauty clinic that advertised acne scar treatments using claims that the clinic was operated by a specialist physician and that the treatment, allegedly involving stem cell technology, could permanently remove acne scars. The plaintiff brought a claim against both the physician-owner and the clinic company, alleging that the advertisements were false and induced her to purchase the treatment. The court found that the clinic was liable for the false representations and that the physician-owner, as both the authorized director of the company and the medical practitioner who provided treatment, was jointly responsible. Although the plaintiff could not fully prove all damages claimed, the court awarded compensation of THB 20,000, together with interest. While the judgment arose from a consumer protection dispute, it serves as a valuable reminder that medical facility advertisements in Thailand are regulated and may expose clinics and healthcare providers not only to regulatory enforcement but also to civil liability from patients who rely on misleading promotional claims. Regulatory Framework Governing Medical Facility Advertisements Medical facility advertising in Thailand is governed by the Medical Facility Act B.E. 2541 (1998), as amended by the Medical Facility Act (No. 4) B.E. 2559 (2016). The principal secondary legislation is the Department of Health Service Support (DoHSS) Notification Re: Rules, Procedures, Conditions, and Fees for an Advertisement or Publication Concerning a Medical Facility, which came into force on November 25, 2019. Under this notification, “advertising” includes any act, by any means, that causes members of the public to see, hear, or otherwise become aware of a message, sound, or image for the commercial benefit of a medical facility. This broad definition covers not only traditional media but also clinic websites, social
September 9, 2026
Certain securities, derivatives, and treasury activities in Thailand were opened to foreign investors when Thailand’s Ministry of Commerce published two new ministerial regulations in the Government Gazette on August 28, 2026. The regulations significantly broaden the service activities that foreign-owned businesses may conduct without a license or certificate under the Foreign Business Act B.E. 2542, as amended (FBA). Securities and Derivatives Business Exemptions Prior to the issuance of these ministerial regulations, the exemptions covered (1) securities brokerage and derivatives brokerage with their only underlying assets being agricultural commodities, financial instruments, and securities; and (2) dealers, advisers, and fund managers conducting derivatives business under Thailand’s derivatives laws. The ministerial regulations provide broader exemptions. In addition to derivatives under the laws on derivatives as before, the following two major categories are provided: Derivatives whose underlying assets or variables fall outside the scope of Thailand’s laws on derivatives. This addresses a gap in the previous framework, which did not comprehensively exempt derivatives tied to nonregulated underlying assets or variables, such as certain commodities. Foreign brokers, advisors, and fund managers can now facilitate a broader range of hedging and risk management instruments without triggering FBA licensing requirements. Derivatives traded outside a derivatives exchange, or over the counter (OTC), whose payments are calculated by reference to foreign exchange rates or interest rates. This removes an FBA licensing barrier for foreign providers of widely used OTC hedging products, broadening the solutions available to importers and exporters managing currency exposure and to borrowers seeking greater certainty over financing costs. The ministerial regulations also exempt brokers and agents handling transactions involving either of these two derivatives categories. For securities businesses, the ministerial regulations add exemptions for margin loans used to purchase securities and for securities repurchase transactions. These additions clarify whether such activities qualify as exempt brokerage
September 9, 2026
On August 25, 2026, Thailand’s cabinet approved in principle a draft amendment that would extend mandatory social security coverage to three categories of workers currently excluded from Thailand’s compulsory social security system. The amendment, proposed by the Ministry of Labour, would modify the Royal Decree Prescribing Businesses and Employees Excluded from the Social Security Act B.E. 2560 (2017). Newly Covered Workers The cabinet-approved proposal would remove the exclusions for the following three categories of employees, bringing them within Thailand’s mandatory social security system: Workers in seasonal cultivation (pho pluk), forestry (pa mai), and livestock (liang sat) businesses that do not employ workers year-round and whose operations do not include other types of business activities. Notably, fishery (pramong) workers were excluded from this amendment following objections raised at a Social Security Board meeting on April 30, 2025, because employers and employees in the fishery sector can already agree to opt into social security coverage under fishery labor laws. Domestic workers and other employees of individual employers where the work performed is not part of a business operation (e.g., housekeepers, gardeners, drivers). This group has actively demanded inclusion in the social security system. Workers employed in street-stall businesses operating fixed street stalls (kan kha phaeng loi). The rationale for including street-stall workers is that their employers have fixed, identifiable places of business that can be inspected. Accordingly, workers engaged in itinerant street hawking (kan kha re) remain excluded. The expanded coverage would apply to both Thai and foreign employees who possess valid identity documents and work permits, including migrant workers who have been granted special permission to work in Thailand. The Social Security Act B.E. 2533 (1990) does not restrict social security registration based on nationality, allowing these workers to register as insured persons under section 33. Employer Obligations and Employee
AWARDS & RANKINGS
September 11, 2026
Tilleke & Gibbins has been named TMT Firm of the Year at the Asia Legal Awards 2026, presented by Law.com International. The winners were announced at an awards ceremony in Singapore on September 10, 2026. The TMT Firm of the Year award recognizes Tilleke & Gibbins’ work in the technology, media, and telecommunications sector, where its lawyers advise clients on complex legal and regulatory matters arising from technological development and the rapidly evolving digital economy. The Asia Legal Awards recognize significant transactions, cases, and legal work across Asia. Presented by Law.com International and open to law firms with offices in the region, the awards honor the firms, teams, and individuals demonstrating innovation, impact, and excellence in the legal industry. For more information, please see the full list of Asia Legal Awards 2026 winners and finalists.
August 13, 2026
Tilleke & Gibbins has been recognized in the inaugural Asia Top Cybersecurity & Data Law Firms 2026 list from Asian Legal Business (ALB), published in the magazine’s August 2026 edition. The new ranking highlights leading law firms across Asia with dedicated cybersecurity, privacy, and data regulation practices, recognizing firms with a proven track record of advising clients on complex cybersecurity and data law matters. Tilleke & Gibbins is one of only 21 firms included in the inaugural list, reflecting the firm’s strength in data privacy, cybersecurity, technology, and regulatory matters throughout Southeast Asia. According to ALB, the firms selected for inclusion are recognized for their capabilities in areas such as privacy compliance, incident response, digital investigations, and technology-enabled client service. The recognition underscores the continued growth and regional prominence of Tilleke & Gibbins’ data privacy and cybersecurity practice, which advises clients across a broad range of industries on data protection compliance, cybersecurity preparedness and response, technology transactions, digital platform regulation, and emerging regulatory developments. This latest honor reflects the firm’s commitment to helping clients navigate an increasingly complex digital and regulatory landscape and reinforces its reputation as a leading adviser on technology, privacy, and cybersecurity issues across the region.
August 13, 2026
Tilleke & Gibbins is pleased to announce that three of the firm’s intellectual property practitioners have been recognized in the IAM Strategy 300: The World’s Leading IP Strategists 2026, an annual guide published by Intellectual Asset Management (IAM) that identifies the world’s leading experts in developing and implementing strategies to maximize the value of intellectual property portfolios. This year, Alan Adcock, Peeyakorn Suparugbundit, and Somboon Earterasarun were included in the prestigious rankings, which encompass leading professionals from law firms, corporations, research institutions, and universities around the world. The 2026 ranking marks Alan’s 16th consecutive inclusion in the IAM Strategy 300, reflecting his longstanding leadership and influence in intellectual property strategy. The recognition also represents a fourth consecutive ranking for Somboon, highlighting his continued success in helping clients maximize the value of their intellectual property assets. In addition, Peeyakorn’s first appearance in the guide recognizes her growing reputation and significant contributions to the profession. The IAM Strategy 300 is compiled through a rigorous research process involving confidential online nominations, interviews, and consultations with senior members of the global intellectual property community. To be included, individuals must receive nominations from at least three people outside their own organization, making the ranking a significant endorsement from peers and clients. The full list of ranked individuals is available on the IAM website.
July 27, 2026
Darani Vachanavuttivong, managing partner and managing director of the firm’s intellectual property (IP) practice, has been recognized in the ALB Asia Top Female Lawyers 2026 list published by Asian Legal Business (ALB). The annual list honors 20 outstanding female lawyers from across Asia who have demonstrated exceptional legal expertise, leadership, and impact in their respective fields. Notably, Darani is the only lawyer from Thailand included in this year’s ranking. This marks Darani Vachanavuttivong’s fourth appearance on ALB’s prestigious list. Her continued inclusion reflects her longstanding contributions to the legal profession, leadership within the intellectual property field, and the strong reputation she has earned among clients and peers throughout the region. Widely recognized as one of Southeast Asia’s leading intellectual property practitioners, Darani has played a key role in shaping and strengthening IP protection and enforcement strategies for clients across a broad range of industries. According to ALB, the ranking celebrates women who are helping shape the future of the legal profession through excellence in practice, leadership, innovation, and meaningful contributions to their communities. The selection process considers factors including professional achievements, significant matters handled, client feedback, market reputation, and broader contributions to the legal industry. For more information on the ALB Asia Top Female Lawyers 2026 list, please see the July 2026 issue of ALB.

Bangkok Office

Bangkok Office

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