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John Frangos

Partner and Director, Dispute Resolution

Biography

John Frangos is a partner and regional practice head of Tilleke & Gibbins’ dispute resolution and litigation group. Based in Bangkok, he works with clients and the firm’s disputes teams on complex cases in Thailand, Vietnam, and across Southeast Asia. He is especially active in leading the firm’s compliance and investigations practice and aviation industry group.

John’s experience includes guiding foreign investors on cross-border litigation and arbitration, construction and infrastructure disputes, aircraft repossessions and aviation-related lease disputes, internal and government investigations, and bankruptcy matters. With nearly two decades of living and working in Thailand and Vietnam, John brings strong knowledge of local business practices and customs. He also has a deep understanding of the region’s political and economic landscapes that shape the legal environment that investors must navigate.

John is ranked as a leading practitioner by Chambers Asia-Pacific, The Legal 500 Asia Pacific, Benchmark Litigation, and Asialaw Profiles. Clients have described him as “super responsive, incredibly knowledgeable, and really focused on getting the best outcome as quickly as possible” (Chambers Asia-Pacific).

John, who is qualified in New York, serves as the Thailand chapter head for the New York State Bar Association. He is also an active member of the American Chamber of Commerce in Thailand and the International Bar Association. He regularly presents and writes on topics related to disputes in Southeast Asia.

Experience

  • Advised a UK investment fund in a dispute over a bond-issuance in Thailand.
  • Assisted a Korean conglomerate on a construction dispute and arbitration in Thailand involving the collapse of a logistics warehouse.
  • Advised a leasing company on the first hostile aircraft repossession in Vietnam.
  • Advised a European aerospace and defense company on a contract dispute against the Thai military.
  • Advised a European telecommunications company on investigating a major internal procurement fraud in Thailand.
  • Advised a global aircraft leasing company on the successful repossession of a Boeing 737 passenger jet from a Thai airline before the Intellectual Property & International Trade Court in Bangkok and the Civil Aviation Authority of Thailand.
  • Advised an American beverage company on an internal anticorruption investigation in Thailand.
  • Advised a global energy services firm on defending an anticorruption investigation by the Thai government.
  • Advised an international e-commerce firm on handling multiple Thai criminal investigations related to alleged regulatory violations.
  • Advised an aircraft manufacturer on a joint venture dispute in Thailand.
  • Assisted a global aircraft leasing company on resolving a lease default dispute with a Thai airline.
  • Advised an Asian regional airline on a complex breach of contract claim against its Thai business partner.
  • Counseled a global aircraft leasing company on the successful repossession of a Boeing 767 passenger jet from a Thai airline before the Intellectual Property & International Trade Court in Bangkok and the Civil Aviation Authority of Thailand.
  • Advised a global oil and gas consulting firm on an internal anticorruption investigation related to attempted bid tampering.
  • Advised a US educational organization on criminal matters related to fraudulent standardized test taking in Thailand.
  • Assisted a multinational vehicle manufacturer on designing and implementing an anticorruption compliance program in Thailand.
  • Advised an American precious metals company on all aspects of Foreign Corrupt Practices Act (FCPA), as well as Thai and Vietnamese anticorruption compliance in its joint venture transactions and general business dealings in Thailand and Vietnam.
  • Advised an international consulting firm on designing and implementing a corporate compliance program across its Southeast Asia operations.
  • Designed and implemented a special intensive anticorruption training program for the board of directors of a large Thai company.
  • Advised a major American software company on defending numerous employment termination cases in Thailand resulting from a global merger.
  • Represented multiple aircraft and engine leasing companies on significant damage claims against Thai airlines.
  • Advised a global automobile manufacturer on a significant customs dispute in Thailand.
  • Advised one of the world’s largest oil field service companies on a full range of labor and employment issues under Thai law.
  • Advised a major international food and beverage company on its internal investigation of an employee’s misappropriation of company assets in Thailand.
  • Advised several global auto makers and auto-parts suppliers on product liability claims in Thailand.
ABOUT John

Industries

Aviation

Locations

Languages

    English

Education

    MIA, School of International and Public Affairs, Columbia University

    JD, New York Law School

    BA, Stony Brook University

Insights

July 23, 2026
Tilleke & Gibbins’ Bangkok-based aviation specialists have authored the Thailand chapter of Aviation Finance & Leasing 2026 from Chambers and Partners. This annual guide examines the key legal issues impacting aircraft lessors, lessees, and financiers in nearly 40 jurisdictions worldwide. In addition to the Thailand chapter, Tilleke & Gibbins also contributed the Vietnam chapter to this year’s edition. The Thailand chapter offers a comprehensive overview of the country’s legal framework governing all aspects of aircraft sale and purchase, aircraft and engine leasing, and aircraft debt finance. Some topics covered include: sale and lease agreement terms taxation lease registration and enforcement lease assignment/novation insurance and reinsurance debt structuring securities liens The guide also examines other matters with practical implications for the aviation industry’s day-to-day operations. Chambers and Partners’ Global Practice Guides provide in-house counsel with authoritative commentary on practical legal issues affecting business, enabling readers to compare legislation and procedures across multiple jurisdictions. The Thailand chapter of Aviation Finance & Leasing 2026 is available on the Chambers and Partners website.
July 14, 2026
Tilleke & Gibbins has contributed the Thailand and Vietnam chapters to Investigations in Southeast Asia, a comprehensive guide published by Drew Network Asia (DNA). The resource provides a practical overview of anticorruption laws, corporate investigations, and compliance frameworks across six key Southeast Asian jurisdictions. Designed for in-house counsel, compliance officers, and risk management professionals, the guide offers actionable insights for navigating complex cross-border regulatory challenges and establishing effective, regionally coordinated compliance and investigation strategies. The guide begins with a regional perspective on enforcement trends and cross-border cooperation initiatives. Jurisdiction-specific chapters follow a standardized structure—covering primary corruption offenses, enforcement authorities, corporate liability, investigation procedures and dawn raids, whistleblower protections, and recommended compliance measures. In addition to country-by-country analysis, the publication highlights best practices for conducting internal investigations, managing digital evidence, and handling parallel proceedings involving multiple regional or international regulators. The guide serves as a practical reference for organizations operating in Southeast Asia. Because legal and regulatory risks depend on specific industry sectors and operational contexts, readers seeking tailored advice are encouraged to contact the authors listed in each chapter. The full guide is available for download through the button below or directly from the DNA website.
April 28, 2026
Thailand’s Anti-Corruption Cooperation Committee has issued a major update to the anticorruption standards required for private entities engaging in high-value state projects. The update, titled “Announcement re: Procurement Limits and Minimum Anticorruption Standards (No. 2),” replaces and amends key provisions of the original announcement dated September 25, 2024. Published in the Government Gazette on April 10, 2026, the new rules take effect on May 10, 2026, and apply to projects valued at more than THB 300 million (approximately USD 9.3 million). The key amendments to the anticorruption standards are detailed below. Expanded Definition of Conflict of Interest The 2026 regulation significantly broadens the scope of what constitutes a conflict of interest compared to the 2024 version, which focused primarily on basic kinship and business ties. Under the new rules, a conflict of interest includes using one’s position or authority to seek benefits for oneself, a group, close associates, or business, including through business relationships, kinship ties, or relationships with spouses or individuals living together as partners without marriage registration. The 2026 announcement also introduces specific examples that were largely absent from the 2024 text, such as holding shares in similar businesses that submit proposals for the same project, or submitting proposals for projects in which a relative, spouse, or unregistered partner is an “involved party” in that procurement. Continuous Compliance: The “Final Payment” Rule Under the 2024 rules, the coverage period for anticorruption policies was less strictly defined. The new regulation mandates a continuous timeline: policies or certifications must remain effective from the date of bid submission until the contractor receives the final payment installment under the contract. If a certification or policy is set to expire before the final payment, the contractor must submit a new self-audit form and supporting evidence to the state agency before the original
February 20, 2026
Thailand’s Supreme Administrative Court has issued a decisive ruling annulling the Ministry of Labor’s notification that had granted an exemption for foreign pilots to fly domestic routes under wet‑lease arrangements. A wet lease is a leasing arrangement in which the aircraft is provided together with its foreign flight crew, including pilots, and related operational support, rather than the airline supplying its own pilots. The judgment, delivered on November 17, 2025, and published in the Government Gazette on January 30, 2026, follows a legal challenge brought by the Thai Pilots Association, which argued that the exemption unlawfully enabled foreign workers to assume a role traditionally reserved for Thai nationals. The notification in question, dated December 13, 2024, authorized foreign pilots who came as part of wet‑leased aircraft to fly domestic routes. The Thai Pilots Association disputed the legality of this rationale, asserting that the exemption was triggered by a private airline’s request rather than by any statutory necessity. The Ministry of Labor justified this measure by relying on aircraft‑specific approvals issued by the Ministry of Transport and by enabling the Department of Employment to issue corresponding work permits. Arguments Presented in the Case The Thai Pilots Association argued that the exemption undermined the interests of domestic pilots and conflicted with the policy intent of Thailand’s foreign‑worker regulatory framework. The lawsuit emphasized that the notification arose directly from a private airline company’s request to operate two A320 aircraft under a wet lease and that the measure had the practical effect of displacing Thai pilots who remained unemployed. Meanwhile, the Ministry of Labor defended the exemption as a temporary and necessary response to industry shortages and part of national efforts to support tourism and restore aviation capacity. Legal Framework Thai law establishes a general prohibition against foreign nationals piloting domestic aircraft. Section

Awards & Rankings

May 11, 2026
Tilleke & Gibbins has been recognized in five practice areas at the Asia Business Law Journal (ABLJ) Vietnam Law Firm Awards 2026, reflecting the firm’s continued strength across a range of legal disciplines in Vietnam. The firm received honors in the following categories: Artificial Intelligence Data Compliance and Cyber Security IP Litigation Labor & Employment Technology, Media & Telecommunications The ABLJ Vietnam Law Firm Awards highlight leading law firms across key practice areas, with multiple firms typically recognized in each category. The 2026 edition marks the fourth year of the awards program. These recognitions underscore the work of Tilleke & Gibbins’ Vietnam-based teams, particularly in technology-driven and regulatory-focused areas of practice. For more details and the full list of winners, please visit the ABLJ website.
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.

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