A draft statement for a forthcoming EU–UK summit says further legal and procedural steps are required before linkage between the two sides’ emissions-trading systems becomes operational and reciprocal carbon-border exemptions can take effect. The European Union and the United Kingdom are negotiating closer cooperation, but the draft separates political agreement on future linkage from the measures needed to implement it.
The draft does not establish a final exemption for UK goods entering the EU. Discussing a proposed exemption with retrospective application would not make it effective: implementing measures, effective dates and arrangements for existing declarations must first be set. This leaves importers assessing liabilities for shipments made in 2026 without a confirmed exemption.
For contracts, the draft provides no basis for removing existing exposure under the Carbon Border Adjustment Mechanism (CBAM). Importers and lenders should maintain separate cost models for the current legal regime and possible future linkage.
If implemented, linkage and preferential treatment could affect UK steel, aluminium and other CBAM-covered products entering the EU, as well as industrial goods and electricity trading. Preferential treatment could eventually affect competition with British suppliers in EU industrial markets, including for Serbia, Montenegro, Türkiye and Ukraine.
Linkage would not automatically change documentary requirements for qualifying actual emissions under the existing electricity CBAM methodology. The draft leaves the implementation of the systems’ connection, and the terms and timing of any carbon-border exemption, dependent on further legal and procedural work.