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    The content on this page is for general educational purposes and does not constitute legal advice. Every legal situation is unique. For matters involving investigation, arrest, litigation, or formal proceedings, consult a qualified legal professional.

    International & Trade Law

    International & Trade Law Overview: Introduction to Thai Law

    Comprehensive introduction to international & trade law principles, historical development, and key legislation governing international & trade law matters in Thailand.

    Last updated: February 2026

    Introduction to International & Trade Law

    Thailand is a founding member of ASEAN and the WTO, with an extensive network of bilateral investment treaties and free trade agreements. The Export and Import of Goods Act governs trade controls, while the Customs Act regulates duties and border procedures. BOI-promoted exports enjoy special privileges. Thailand follows INCOTERMS and the UN Convention on Contracts for the International Sale of Goods (CISG) principles in practice, though not formally ratified.

    This comprehensive guide provides an overview of international & trade law in Thailand, covering key principles, relevant legislation, and practical considerations for anyone navigating the Thai legal system.

    Key Principles

    Legal Framework

    Thai international & trade law operates within a civil law tradition, with codified statutes forming the primary source of law. Judicial precedent plays a secondary role.

    Court Jurisdiction

    International & Trade Law matters are heard in the Courts of First Instance, with appeals to the Court of Appeal and Supreme Court (Dika Court).

    Statutory Basis

    Primary legislation includes Export and Import of Goods Act B.E. 2522 (1979) and Customs Act B.E. 2560 (2017), along with relevant royal decrees and ministerial regulations.

    Constitutional Protections

    The Thai Constitution guarantees fundamental rights that apply to all international & trade lawproceedings, including due process and equal protection.

    Key Legislation

    Export and Import of Goods Act B.E. 2522 (1979)
    Customs Act B.E. 2560 (2017)
    Anti-Dumping and Countervailing Duty Act B.E. 2542 (1999)
    Investment Promotion Act B.E. 2520 (1977)

    Scope & Application

    International & Trade Law in Thailand applies to:

    • All persons within Thai territory (Thai and foreign nationals)
    • Conduct occurring within Thailand's borders
    • Certain extraterritorial conduct by Thai nationals
    • Matters falling within the subject matter jurisdiction of relevant courts

    More International & Trade Law Topics

    When Legal Representation Matters

    If you need assistance with international & trade law matters in Thailand, professional legal advice can help protect your interests.

    Anglo Siam Legal provides experienced legal services across Thailand for both Thai nationals and foreigners.

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