US Trade Representative Jamieson Greer revealed President Donald Trump will sign a supplemental proclamation to raise tariffs to 15% where appropriate, seeking continuity in trade policy. The administration aims to address gaps in the USMCA agreement with Canada and Mexico while expecting the UK and European Union to honor existing trade deals. Greer's comments signal a more aggressive trade stance.

Trump's tariff strategy targets perceived inequities in international trade relationships. The 15% tariff increase represents a significant escalation from previous rates, potentially impacting billions in cross-border commerce. Greer emphasized the administration's focus on fixing what it views as shortcomings in the USMCA, particularly around labor and environmental standards that critics say give foreign competitors an edge.

Market analysts are watching closely as these trade moves could disrupt supply chains and raise costs for manufacturers. The EU and UK face pressure to maintain their trade commitments while negotiating potential new terms. With negotiations ongoing, businesses are preparing for possible tariff-related disruptions in key sectors like automotive and agriculture.