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Phubeth Wattanatumrong

Associate

Biography

Phubeth is an associate in the dispute resolution team at Tilleke & Gibbins’ Bangkok office. He advises and represents both local and international clients in a broad spectrum of civil and criminal litigation matters across various industries.

His practice covers a wide range of legal disputes, including contractual conflicts, insurance claims, torts, labor and employment issues, criminal cases, customs and trade matters, and bankruptcy and insolvency proceedings. He works closely with the firm’s litigation professionals to craft and implement legal strategies that align with clients’ business goals while effectively navigating the intricacies of Thai law.

His responsibilities include conducting in-depth legal research, drafting legal documents, translating key materials, preparing witnesses, and coordinating with courts, regulators, and government bodies. With a meticulous and client-oriented approach, he ensures comprehensive legal support at every stage of the dispute resolution process.

Phubeth holds an LLB from Chulalongkorn University.

Experience

  • Assisted a British executive in a high-value breach-of-contract dispute involving a THB 600 million claim over a service agreement, navigating complex contractual issues and litigating against several top-tier law firms in Thailand, with our strategic legal planning and effective advocacy resulting in the court ultimately dismissing the client from the proceedings.
  • Supported a vehicle manufacturer in a labor dispute concerning the interpretation of statutory severance pay and the application of complex monetary policies, providing legal analysis and case preparation that contributed to a successful dismissal of the claim, which protected the company from significant financial liability.
  • Represented a leading Thai real estate company in a contractual dispute over the right to use a shared passage between two adjacent properties, which involved intricate property law issues and stakeholder negotiations, resulting in a favorable court decision dismissing the claim.
  • Developed legal strategy for Thai public companies in the infrastructure sector and assisted in preparing legal arguments and advising on procedural approaches for initiating cases before the Administrative Court and effectively engaging with government authorities and regulatory bodies to support the clients’ objectives.
ABOUT Phubeth

Practices

Dispute Resolution and Litigation

Employment

Regulatory Affairs

Location

Languages

    Thai

    English

Education

    LLB, Chulalongkorn University

Insights

August 21, 2025
Tilleke & Gibbins is pleased to announce that the firm has adopted Harvey, a leading enterprise-grade AI platform for the global legal industry. The firm is proceeding with a rollout of Harvey’s legal AI solutions, which are supported by robust security and confidentiality protections, across the firm’s full-service regional practice in Southeast Asia. This initiative builds on the firm’s recent deployment of Microsoft Copilot and represents another advancement in Tilleke & Gibbins’ commitment to leveraging technology for enhanced legal service delivery. Under the program, legal professionals across the firm’s offices in Cambodia, Indonesia, Laos, Myanmar, Thailand, and Vietnam will have access to the full Harvey platform, equipping them to deliver practical, impactful, and results-driven legal services for clients throughout the region. The firm will also develop bespoke agentic workflows within Harvey tailored to the firm’s core practices and the unique requirements of Southeast Asian legal markets. Commenting on the initiative, Managing Partner Tiziana Sucharitkul stated, “At Tilleke & Gibbins, we have consistently invested in developing and adopting technology to improve the speed, precision, and overall excellence of our legal services. The firm’s decision to invest in Harvey exemplifies our commitment to innovation, further differentiating Tilleke & Gibbins within Southeast Asia’s legal landscape.” Managing Partner Darani Vachanavuttivong remarked, “By combining the deep regional expertise of our lawyers with Harvey’s market-leading domain-specific AI, we are empowering our regional team to streamline drafting, research, and review processes for complex legal matters, all while maintaining the high standards of quality and security our clients expect from us.” Harvey’s Chief Business Officer John Haddock added, “It’s clear Tilleke & Gibbins is investing heavily in innovation, and it’s clear their global clients will benefit significantly from their focus and investment. The Harvey team is thrilled to support the firm’s journey with our platform.”
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May 2, 2025
Attorneys from Tilleke & Gibbins have updated the latest edition of Doing Business in Thailand, a Q&A-style guide from Thomson Reuters Practical Law that offers an overview of key legal considerations for companies operating in jurisdictions worldwide. The contribution outlines the country’s legal and regulatory framework for foreign investment and business operations and reflects the latest legislative developments. The chapter addresses the following core topics: Legal system: Structure of the courts and the codified nature of Thai law. Foreign investment: Business restrictions under the Foreign Business Act, sector-specific regulations, exchange control rules, and investment incentives. Business vehicles: Overview of partnerships, private and public limited companies, and other legal entities. Employment: Labor protections, employment contracts, foreign worker requirements, and termination procedures. Tax: Corporate and personal income tax, indirect taxes, and tax obligations for residents and non-residents. Intellectual property: Registration and enforcement of patents, trademarks, designs, and copyrights. Data protection: Key provisions of the Personal Data Protection Act and related compliance obligations. Competition law: Regulatory framework under the Trade Competition Act. Anti-bribery and corruption: Relevant legislation and enforcement mechanisms. E-commerce and digital business: Legal regime for online transactions and digital platforms. Marketing and advertising: Consumer protection laws and regulations affecting advertising and marketing practices. Product regulation and liability: Safety standards, liability regimes, and roles of enforcement authorities. Practical Law, a legal reference resource from Thomson Reuters, publishes a range of guides for hundreds of jurisdictions and practice areas. The insurance and reinsurance guide is a valuable resource for legal practitioners, covering numerous jurisdictions worldwide. To view the latest version of the guide, please visit the Practical Law website and enroll in the free Practical Law trial to gain full access.
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December 4, 2024
Thailand Legal Basics, a valuable primer for foreign investors, explores all aspects of living and doing business in Thailand. Written by specialists at Tilleke & Gibbins in Bangkok, it is the only comprehensive English-language guide to the Thai legal system with a focus on the concerns of foreign business and investment.
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December 15, 2023
As part of its membership in Lex Mundi, Tilleke & Gibbins has published an updated edition of its Guide to Doing Business in Thailand for 2023. This guide outlines the key factors for starting and operating a business in the Thai market. Issues covered include: Investment incentives Financial facilities Exchange controls Import and export regulations Structures for doing business Requirements for the Establishment of a Business Operation of the Business Cessation or Termination of the Business Labor legislation, relations, and supply Tax Immigration requirements This publication is part of Lex Mundi’s Country Guides series prepared by member firms in more than 100 jurisdictions worldwide. The guides serve as a useful resource for planning international business strategy and researching new markets. The full Guide to Doing Business in Thailand is available through the button below.
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Awards & Rankings

September 12, 2025
The 2025/2026 edition of the IFLR1000 Asia-Pacific rankings, released by International Financial Law Review (IFLR), highlights Tilleke & Gibbins’ continued excellence in financial and corporate transactional work. The firm has maintained its strong rankings across multiple jurisdictions and practice areas while achieving notable upgrades and new recognitions, reaffirming its position as a leading firm in the Asia-Pacific region. This year, Tilleke & Gibbins received firmwide rankings in key jurisdictions, including: Thailand Banking & Finance—Tier 3 Capital Markets: Debt—Tier 3 Capital Markets: Equity—Tier 3 M&A—Tier 2 Project Development—Tier 2 Restructuring & Insolvency—Tier 3 Vietnam Banking & Finance—Tier 4 M&A—Tier 3 Project Development—Tier 3 Cambodia Financial & Corporate—Tier 2 Project Development—Tier 2 Laos Financial & Corporate—Tier 2 In addition to these firmwide rankings, Tilleke & Gibbins had several standout individual recognitions, with 12 lawyers honored in the 2025/2026 individual rankings—an increase from last year’s 10. This year’s results include upgraded rankings for John Frangos and new rankings for Charupat Boon-Long, Derrick Khoo, Prisna Sungwanna, and Saravut Krailadsiri. The full list is as follows: Charunun Sathitsuksomboon—Highly Regarded, M&A, Thailand; Women Leader Charupat Boon-Long—Rising Star, M&A, Thailand (new ranking) David Mol—Rising Star, Corporate and M&A, Cambodia Derrick Khoo—Rising Star (Partner), Financial and Corporate, Thailand (new ranking) Jay Cohen—Highly Regarded, Banking, Cambodia John Frangos—Highly Regarded, Restructuring & Insolvency, Thailand (upgraded ranking) Niti Muangkote—Rising Star, Financial & Corporate and Project Development, Laos; Highly Regarded, Banking & Finance, Thailand Prisna Sungwanna—Highly Regarded, Financial & Corporate, Laos (new ranking) Saithong Rattana—Notable Practitioner, Project Development and M&A, Laos Santhapat Periera—Highly Regarded, Banking & Finance and M&A, Laos; Highly Regarded, Banking & Finance, Thailand Saravut Krailadsiri—Notable Practitioner, Thailand (new ranking) Tram Ngoc Bich Nguyen—Highly Regarded, M&A, Vietnam To see the full set of IFLR1000 rankings for Tilleke & Gibbins’ jurisdictions, please see the Cambodia, Laos, Thailand, and Vietnam pages
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May 13, 2025
Tilleke & Gibbins has been recognized in the In-House Community (IHC) Firms of the Year 2024, earning accolades across 19 categories in Thailand and Vietnam. The results, based on surveys of in-house counsel across Asia, reflect client perspectives on the quality and responsiveness of legal services in key practice areas. The firm received 11 Firm of the Year awards and two honorable mentions in Thailand, along with six Firm of the Year awards in Vietnam. Notably, Tilleke & Gibbins was named “Most Responsive International Law Firm” in both jurisdictions—an acknowledgment that underscores the firm’s longstanding commitment to client service. Firm of the Year – Thailand Most Responsive International Law Firm Antitrust/Competition Banking and Finance Employment Energy and Projects Intellectual Property International Arbitration Litigation and Dispute Resolution Real Estate and Construction Taxation Technology, Media, and Telecommunications Honorable Mention: Capital Markets Honorable Mention: Corporate and M&A Firm of the Year – Vietnam Most Responsive International Law Firm Employment Intellectual Property International Arbitration Litigation and Dispute Resolution Technology, Media, and Telecommunications The IHC Firms of the Year rankings are determined through responses from thousands of in-house counsel and corporate decision-makers in Asia and the Middle East. Tilleke & Gibbins is honored to receive this recognition from the clients and peers it serves across the region.
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May 8, 2025
Benchmark Litigation has released its 2025 rankings for leading dispute resolution firms in the Asia-Pacific region, highlighting Tilleke & Gibbins’ continued success in the region. The Benchmark Litigation 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 (Foreign Firms) – Recommended (top tier in this category) Energy & Construction (Foreign Firms) – Tier 2 International Arbitration – Highly Recommended Individual Rankings The 2025 edition also recognizes a record 10 Tilleke & Gibbins lawyers in Thailand—more than any other firm in the jurisdiction—and four in Vietnam. Thailand Alongkorn Tongmee – Trade & Customs Chusert Supasitthumrong – Labor & Employment John Frangos – Commercial & Transactions (new) Noppramart Thammateeradaycho – Shipping Nuttaphol Arammuang – Intellectual Property Pongpalin Chantrapirom – Commercial & Transactions (new) 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 (new) Linh Duy Mai – Intellectual Property Loc Xuan Le – Intellectual Property Tu Anh Tran – Commercial & Transactions (new) 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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