The global trade environment for Thai exporters in 2026 has shifted significantly. Recent enforcement developments in both the United States and the European Union show a clear shift in trade policy: regulators are no longer focused solely on tariff levels, but also on whether products genuinely originate where exporters claim they do. Adding to this complexity, the US Supreme Court’s February 2026 decision striking down the use of the International Emergency Economic Powers Act (IEEPA) to impose tariffs has upended the legal basis for a major pillar of US tariff policy, creating significant legal and commercial uncertainty for exporters worldwide, including in Thailand.
For Thai companies integrated into regional supply chains, this change carries material implications. Although the IEEPA-based US reciprocal tariffs have been struck down, intensified circumvention enforcement continues under separate legal authorities, and the administration has signaled its intent to reimpose