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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 4, 2026
Foreign business restrictions on telecommunications, treasury center businesses, and intragroup support services were eased when Thailand published the Ministerial Regulation Prescribing Service Businesses Not Requiring Permission for Foreign Business Operations (No. 5) B.E. 2569 (2026) in the Government Gazette on August 28, 2026. The ministerial regulation expands the categories of service businesses that foreign investors may operate without a foreign business license (FBL) under the Foreign Business Act B.E. 2542 (1999) (FBA). Of particular relevance to the telecommunications, fintech, and technology sectors, the ministerial regulation exempts: Type 1 telecommunications licensees, which do not have their own networks; Treasury center businesses operated in accordance with Thailand’s exchange control regulations; and Certain intragroup administrative, human resources, and information technology management services. Telecommunications Services Foreign-owned businesses providing telecommunications services under a type 1 telecommunications license may now operate without obtaining an FBL. This may streamline market entry for qualifying telecommunications and digital infrastructure businesses. The exemption applies only to the FBA licensing requirement. Operators must continue to comply with applicable requirements under the Telecommunications Business Act and the regulations of the National Broadcasting and Telecommunications Commission, and the change does not affect foreign ownership restrictions applicable to type 2 or type 3 telecommunications businesses. Treasury Center Businesses The ministerial regulation also exempts qualifying treasury center businesses from the FBL requirement. This may facilitate centralized treasury functions in Thailand, including liquidity management, foreign exchange management, and intragroup funding arrangements. Treasury center operations remain subject to applicable requirements of the Bank of Thailand and other competent authorities. Intragroup Administrative, HR, and IT Services Certain administrative, human resources, and information technology management services provided between affiliated entities are also exempt, provided the relevant entities satisfy prescribed ownership or management criteria. The exemption is available where the service provider and recipient are related through specified ownership
September 4, 2026
Thailand’s cabinet has approved two draft amendments aimed at improving labor-related judicial proceedings. The proposed amendments to the Act on the Establishment of Labor Courts and Labor Case Procedure B.E. 2522 (1979) and the Act on Procedures for Human Trafficking Cases B.E. 2559 (2016) are intended to make the process more efficient, appropriate, and fair. Key elements of these proposed amendments are outlined below. Expansion of Labor Court Jurisdiction Under the current framework, labor courts generally hear labor disputes, while criminal offenses under labor laws are handled separately. Matters involving both labor and criminal issues may therefore require the parties to pursue proceedings before different courts. To address this, the proposed amendments would expand the jurisdiction of labor courts to cover certain criminal offenses under labor laws. The government states that the change is intended to allow related issues to be heard by judges with expertise in labor law and to reduce the need for parallel proceedings. The proposed amendments also set out the following rules for cases involving multiple offenses. Where a single act gives rise to multiple offenses and at least one of those offenses falls within the jurisdiction of the labor court, the labor court may hear the related offenses as part of the same case. Where multiple connected acts give rise to different offenses, the labor court may hear the matters together or transfer part of the case to the appropriate court, taking into account convenience and the interests of justice. Criminal Offenses Covered The proposed amendments would extend labor court jurisdiction to criminal offenses under 11 labor-related laws, including laws concerning: Home workers protection Labor protection Labor protection in fisheries work Employment and job-seeker protection Management of foreign workers Social security Occupational safety, health, and working environment Compensation Maritime labor State enterprise labor relations
September 2, 2026
Thailand and China have a longstanding and significant trade relationship, which increasingly extends to e-commerce and digitally enabled supply chains. While these channels create new opportunities for businesses to reach consumers across borders, their growth also brings greater exposure to intellectual property (IP) infringement across jurisdictions and online platforms. Effective cooperation between the two countries’ enforcement authorities has therefore become increasingly important. To strengthen cooperation in this area, Thailand and China signed a memorandum of understanding (MOU) on IP enforcement in Beijing on July 20, 2026, during the Thai prime minister’s official visit to China. Officially titled “Memorandum of Understanding Between the State Administration for Market Regulation of the People’s Republic of China and the Ministry of Commerce of the Kingdom of Thailand on Cooperation in the Field of Intellectual Property Enforcement,” the MOU forms part of a broader bilateral agenda covering industrial and supply chains, participation by micro, small, and medium-sized enterprises (MSMEs), cooperation associated with the ASEAN–China Free Trade Area 3.0, and progress on the registration of Thai geographical indications in China. The MOU establishes a bilateral framework for cooperation and coordination in five broad areas: Strengthening dialogue in IP enforcement; Enhancing information sharing; Facilitating the enforcement of IP rights in cases arising in the parties’ domestic markets and on online platforms, in accordance with their respective domestic laws; Promoting cooperation in IP enforcement training and human resource development; and Undertaking other cooperation activities agreed upon by both sides. The Department of Intellectual Property (DIP) will serve as the principal coordinating agency for Thailand, while the Bureau of Law Enforcement and Inspection in China’s State Administration for Market Regulation (SAMR) will serve in that role for China. The framework is particularly relevant to the growth of e-commerce, as it covers infringement in the domestic markets and on
September 2, 2026
On August 21, 2026, Thailand’s Securities and Exchange Commission (SEC) published two consultation papers that would broaden regulated access to crypto assets while tightening custody standards. The first proposes a framework for establishing crypto exchange-traded funds (crypto ETFs) in Thailand. The second proposes enhanced qualification requirements for foreign digital asset custodians serving mutual funds and private funds that invest in digital assets. The proposals seek to expand regulated access to crypto assets while strengthening custody, governance, disclosure, and investor protection, and they affect fund managers, trustees, and licensed digital asset operators. Comments on both papers are due by September 20, 2026, and the SEC expects the resulting rules to take effect later in 2026. Elevating Foreign Custodian Standards Under current rules in effect since January 16, 2025, mutual funds and private funds investing in digital assets may use foreign custodians that meet qualifications similar to those set for domestic digital asset business operators. The SEC now proposes that foreign digital asset custodians satisfy two cumulative requirements: Compliance with the existing baseline qualifications: demonstrated expertise, robust cybersecurity measures, segregation of client assets, controls preventing unauthorized asset transfers, and sound financial standing. Supervision by a regulator that is either (1) an IOSCO Signatory A member under the Multilateral Memorandum of Understanding, the international arrangement through which securities regulators share information and cooperate on enforcement, or (2) a regulator in a jurisdiction that the Thai SEC designates as having adequate supervisory and investor protection standards. The SEC is initially considering 11 jurisdictions for the approved-country list: France, Germany, Hong Kong SAR, Ireland, Japan, Liechtenstein, Luxembourg, Malaysia, Singapore, South Korea, and the United States. The SEC may expand this list over time based on its assessment of other jurisdictions’ regulatory frameworks governing custodian licensing, asset segregation, secure custody practices, client rights in insolvency,
AWARDS & RANKINGS
June 11, 2026
A total of 11 Tilleke & Gibbins intellectual property practitioners have been recognized in World Trademark Review‘s WTR Global Leaders 2026, an exclusive ranking of the world’s top trademark professionals. This marks an increase from eight practitioners in 2025 and highlights the strength and depth of the firm’s IP team across Southeast Asia. The firm’s recognized practitioners are: Cambodia David Mol Sokmean Chea Indonesia Wongrat Ratanaprayul (New ranking) Myanmar Yuwadee Thean-ngarm Thailand Alan Adcock Darani Vachanavuttivong Somboon Earterasarun Suebsiri Taweepon (New ranking) Nuttaphol Arammuang (New ranking) Vietnam Linh Thi Mai Nguyen Loc Xuan Le WTR Global Leaders draws on research from the WTR 1000 and WTR 300 to identify the very best trademark practitioners worldwide, bringing together a select group of professionals recognized for their expertise, insight, and contributions to the field. The full list of ranked individuals in the private practice category can be viewed here.
June 10, 2026
Tilleke & Gibbins was again recognized as a top-tier intellectual property law firm in Southeast Asia in the 2026 edition of Managing Intellectual Property’s IP Stars rankings Firm Rankings In this year’s firm rankings, Tilleke & Gibbins secured the following positions: Cambodia General IP – Recommended (top tier awarded for this category) Indonesia Patent – Tier 2 Trademark – Tier 2 Thailand Patent – Tier 1 Trademark – Tier 1 Vietnam Patent – Tier 1 Trademark – Tier 1 Individual Rankings In addition to the firm rankings, 12 Tilleke & Gibbins lawyers were recognized individually as IP Stars: Cambodia David Mol – Rising Star Sokmean Chea – Rising Star Indonesia Rochmali Zultan – Rising Star Wongrat Ratanaprayul – Patent Star, Trademark Star Thailand Alan Adcock – Patent Star, Trademark Star Darani Vachanavuttivong – Patent Star, Trademark Star Kasama Sriwatanakul – Rising Star Sukontip Jitmongkolthong –Trademark Star Vietnam Linh Duy Mai – Rising Star Linh Thi Mai Nguyen – Trademark Star Loc Xuan Le – Patent Star, Trademark Star Trung Nguyen – Trademark Star The annual IP Stars rankings are based on extensive independent research, including client and peer feedback, market analysis, and recent case highlights. For more information and to browse the full rankings, please see the IP Stars website.
June 4, 2026
Tilleke & Gibbins has reinforced its position as one of Southeast Asia’s leading patent practices in the newly released IAM Patent 1000 2026, earning top-tier firm rankings in Indonesia, Thailand, and Vietnam, alongside 23 individual recognitions across the region. The firm achieved Gold rankings in Thailand and Vietnam and a Highly Recommended ranking in Indonesia—the highest tier available in the jurisdiction—highlighting the strength and consistency of its regional patent practice. This marks the firm’s 14th consecutive year in the top tier for Thailand, seventh consecutive year for Vietnam, and third straight year ranked among Indonesia’s leading firms. The firm’s strong regional performance is further reflected in the individual rankings, with the following Tilleke & Gibbins practitioners recognized for their expertise in patent law: Indonesia Irene Djalim Melinda Ambrizal Wongrat Ratanaprayul Thailand Alan Adcock Atthachai Homhuan Darani Vachanavuttivong Jakkrit Kuanpoth Napagate Triratana Nattriya Supmoon Nuttaphol Arammuang Peeyakorn Suparugbundit San Chaithiraphant Somboon Earterasarun Suebsiri Taweepon Sukontip Jitmongkolthong Wong Vorravitwattana Vietnam Dat Thanh Nguyen Giang Hoang Bach Hien Thi Thu Vu Hung Tuan Nguyen Linh Duy Mai Loc Xuan Le Thanh Phuong Vu The IAM Patent 1000 identifies the world’s leading patent firms and practitioners through extensive qualitative research based on feedback from clients, peers, and industry stakeholders. For more details, please see the IAM Patent 1000 rankings for Indonesia, Thailand, and Vietnam.

Bangkok Office

Bangkok Office

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