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Explainer: Donald Trump's 25% tariff hike on steel and aluminium comes into effect. Here's how it will impact industries

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Business 04 Jun 2025 05:35 PM IST SB Team

Donald Trump's move to restore a high 25% tariff on foreign steel and 10% on aluminium has gone into effect, bringing back one of the most contentious actions of his administration. The policy is not new but rather dates back to March 2018, when Trump initially used Section 232 of the Trade Expansion Act, invoking national security as the reason for imposing duties on foreign steel and aluminium imports.

Then, the purpose was to resuscitate ailing U.S. steel mills, cut dependence on imports, and generate employment. Though it provided temporary succor to domestic producers, it also precipitated instant retaliation from U.S. trade partners such as Canada, Mexico, the European Union, Japan, China, and India.Forward to 2025, Trump's comeback to protectionism policy is ongoing with this tariff re-imposition, asserting that it will safeguard American businesses against unfair foreign competition.

Critics protest that it will raise U.S. manufacturers' costs for the automotive, infrastructure, consumer appliance, and defense industries, which rely significantly on imported steel and aluminum.

Global Response & Trade Risks

In 2018, nations had responded with counter-tariffs on American products from whiskey to motorcycles. Such trade wars could flare anew, jerking global supply chains out of kilter, damaging allied economies, and pulling U.S. diplomatic relationships taut.

What Happens Now?

  1. American domestic manufacturers will gain in the short term.
  2. Steel-intensive products such as cars, appliances, and building projects will see their prices increase.
  3. Global supply chains may slow or find different routes.
  4. India, Japan, and the EU are some countries that would retaliate with duties to safeguard their own interests.