Section 232 Metals Tariffs Revised Again Through 2027

A June 1 proclamation revised Section 232 tariffs on steel, aluminum and copper, with changes effective June 8, 2026 through December 31, 2027. The updates adjust rates for some agricultural, HVAC and mobile industrial equipment, add aluminum lithographic plates and steel racks, lower the US-content preferential threshold, and set special non-US-content treatment for qualifying USMCA goods from Canada and Mexico. Trade counsel need to revisit origin, content, classification and contract pricing models. Even clients with USMCA-qualifying goods may still face minimum effective tariff exposure.