Trump Signs Proclamation Amending Tariffs on Steel, Aluminium, and Copper Imports, Offering Preferential Rates to Trade-Deal Partners
US President Donald Trump has signed a proclamation amending tariffs on imports of certain copper, aluminium, and iron products, with adjustments taking effect through 31 December 2027 to encourage near-term investment in the US industrial base. The changes include: a reduction in tariffs on certain agricultural equipment from 25% to 15%; application of a 15% tariff on mobile industrial equipment such as bulldozers and forklifts when imported from countries that have a qualifying trade deal with the US; and a 10% tariff rate available to foreign companies whose capital equipment incorporates at least 85% US-melted and poured or smelted and cast steel or aluminium by weight. The proclamation represents a targeted recalibration of the existing tariff architecture rather than a wholesale renegotiation, and explicitly links preferential rates to either bilateral trade agreements or domestic content requirements. For UK businesses and advisers, the trade-deal eligibility limb is particularly relevant given the state of UK–US trade negotiations and whether the UK qualifies for the preferential 15% rate on relevant goods.
Why this matters
Tariff proclamations of this type create immediate compliance work for importers, their customs advisers, and supply chain legal teams: businesses need to assess whether their goods qualify for preferential rates under the trade-deal carve-out or the domestic-content threshold. For UK companies exporting capital equipment or inputs to the US, the question of whether the UK qualifies as a 'trade deal country' under this proclamation is live and commercially significant. The 2027 sunset date creates a narrow window for investment decisions, adding urgency to the advisory work. This also adds another layer to the ongoing UK–US trade negotiation dynamic, as preferential access under these tariff amendments could become a bargaining chip.
On the Ground
A trainee on a trade advisory matter arising from this proclamation would assist with preparing a treaty analysis note on the UK's current trade relationship with the US, drafting choice-of-law and tariff classification summaries for specific product lines, and coordinating with local counsel in the US on customs compliance requirements.
Interview prep
Question you might get
“If a UK manufacturer exports capital equipment to the US, what legal and regulatory steps would it need to take to assess whether it qualifies for the preferential 15% tariff rate under this proclamation, and what are the main risks if it miscategorises its goods?”
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