Key Developments
On 9 September 2026, the European Commission welcomed Cambodia's entry into the WTO Multi-party Interim Appeal Arbitration Arrangement. The European Commission said the move expanded an interim appeal system for trade disputes while the WTO Appellate Body remained unable to function.
Key Statistics
- 62 WTO members participated in the MPIA after Cambodia joined, according to the European Commission.
- 60.4% of global trade was covered by MPIA participants after Cambodia's accession, according to the European Commission.
Main Body
On 9 September 2026, the European Commission welcomed Cambodia's decision to join the WTO Multi-party Interim Appeal Arbitration Arrangement, known as the MPIA. The European Commission said the step strengthened an interim route for resolving trade disputes among participating WTO members.
The European Commission said Cambodia's participation brought the arrangement to 62 WTO members, covering 60.4% of global trade. The European Commission described the MPIA as a mechanism for handling appeals while the WTO Appellate Body was not operating.
The announcement fit into the EU's continuing emphasis on enforceable multilateral trade rules, according to the European Commission. The European Commission framed Cambodia's accession as support for a rules-based trading system at a time when the WTO's normal appellate process remained unavailable.
The practical significance was institutional and commercial. According to the European Commission, broader MPIA participation meant more WTO members could use a shared interim process for appeals, reducing the risk that disputes among participants would remain unresolved because of the Appellate Body impasse.




