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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 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
September 7, 2026
On September 4, 2026, Thailand’s prime minister convened the first meeting of the Data Center Business Policy Committee. The committee endorsed a draft policy framework for the data center industry and tasked four subcommittees with developing the standards that would sit beneath it, shifting away from fragmented, agency-by-agency approvals toward a unified national strategy aiming to maximize economic value while managing environmental and infrastructure concerns. Proposed Scope and Pillars of the National Data Center Policy Framework The proposed framework would cover all types of data centers, including internal or captive facilities operated within a company or its affiliates, rather than only commercial third-party providers. If adopted in this form, companies running private data centers purely for internal purposes would also become subject to regulatory oversight. Minimum safety and operational standards would be established, with uniform enforcement across all categories. The committee endorsed a draft policy framework with four key pillars: Industrial classification: Data centers exceeding 2 MW would be classified as industrial operations, which may require factory licenses and environmental impact assessments under the Factory Act. Resource pricing: Utility rates would be structured to reflect both direct and indirect costs, supporting green energy and green data center standards. Centralized screening: A centralized review would evaluate project suitability and resource allocation. Operators may be required to submit proposals through periodic “pitching” rounds, where projects are competitively assessed on their potential economic and strategic benefits to Thailand. Digital ecosystem: The framework would prioritize data sovereignty, tax incentives, and conditions promoting domestic digital businesses, AI, and cloud infrastructure. Multidimensional Evaluation Criteria and Subcommittees Four subcommittees will be established to develop standards responsible for the following dimensions: Economic: Criteria for assessing the economic viability of data center projects, for use in prioritizing data centers based on infrastructure readiness, demand type (including AI factories),
September 4, 2026
Blind boxes and collectibles have become increasingly popular, driven by the excitement of not knowing which character or design will be revealed until the package is opened. While most visible in the art toy market, the same concept is also used in the food industry. Confectionery, snacks, and other food products are sometimes sold with toys, character figures, cards, or other collectibles. A package might, for example, contain one of ten possible characters, with consumers knowing that an item is included but not which one they will receive. Some collections may also feature rare or “secret” items. For food businesses, however, adding a randomized toy or collectible involves more than a marketing decision. The food, the nonfood item, and the randomized mechanism may each raise different regulatory considerations in Thailand. Thai FDA Requirements for Nonfood Objects Packaged with Food The main food regulatory consideration is Ministry of Public Health Notification No. 310 B.E. 2551 (2008), which regulates food packaged together with things or objects that are not food. Under Notification No. 310, certain nonfood objects may be packaged together with food where they fall within specified exceptions, including objects that serve the following purposes: Maintaining the quality or standard of the food, such as a desiccant or oxygen absorber; Serving as a seasoning or as part of food preparation, such as chili powder sachets or seasoning sachets contained in instant noodle packages; or Functioning as an eating or food-preparation utensil, such as a spoon or fork included with instant noodles. Other nonfood objects that do not fall within these categories generally should not be placed inside the food container together with the food. Where a toy, collectible, or other nonfood object is intended to be sold together with a food product, businesses should therefore carefully consider the nature of
AWARDS & RANKINGS
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.
July 22, 2026
Tilleke & Gibbins has been named Best Insurance Law Firm in Thailand in the InsuranceAsia News Country Awards for Excellence 2026. This is the firm’s first recognition from InsuranceAsia News, and Tilleke & Gibbins was the sole law firm honored in the Thailand awards. The award recognizes the strength of Tilleke & Gibbins’ insurance practice and the team’s work advising clients in the sector. InsuranceAsia News selected the winners based on submission reviews, independent research, market knowledge, and analysis by the publication’s judging panel. InsuranceAsia News provides news, analysis, and market intelligence for insurers and related organizations across Asia. For more information and to view the full list of winners, please visit the InsuranceAsia News website.
July 16, 2026
Tilleke & Gibbins is pleased to announce that two of the firm’s leading intellectual property practitioners have been recognized in the Managing IP Top 250 Women in IP 2026 rankings. Darani Vachanavuttivong, managing partner and managing director of the firm’s intellectual property department, and Wongrat Ratanaprayul, head of the Tilleke & Gibbins’ office in Jakarta, were both selected for inclusion in this year’s list, which highlights outstanding female IP professionals from around the world who have demonstrated exceptional expertise, leadership, and contributions to the profession. Darani continues to be the only lawyer in Thailand included in the ranking, underscoring her longstanding reputation as one of the country’s foremost intellectual property practitioners. Wongrat is one of only three lawyers in Indonesia recognized in this year’s edition. The Managing IP Top 250 Women in IP ranking recognizes leading female intellectual property lawyers worldwide based on their expertise, professional achievements, and contributions to the development of intellectual property practice. To read the announcement and view the full Top 250 Women in IP 2026 list, please visit the Managing IP website.
July 8, 2026
Benchmark Litigation has once again included Tiziana Sucharitkul, managing partner at Tilleke & Gibbins, in its Top 100 Women in Litigation list for 2026. This marks her sixth time earning a place in the publication’s annual ranking of leading female litigators. This annual list honors leading female litigators across the region who have distinguished themselves through notable casework, strong client and peer feedback, and outstanding professional reputations. The continued recognition reflects Tiziana’s sustained prominence in complex disputes work, as well as her longstanding contributions to the legal profession in Thailand and beyond. Her strategic approach and depth of experience have made her a trusted advisor in high-stakes litigation matters. Benchmark Litigation’s rigorous selection process considers not only legal expertise and peer endorsements but also the significance and impact of each lawyer’s recent litigation work within their jurisdiction. Readers can access Benchmark Litigation’s full Top 100 Women in Litigation list through their website.

Bangkok Office

Bangkok Office

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