Trump Imposes Steep Tariffs on Metal Imports, Cites National Security Concerns

Washington, April 2026 : Donald Trump has signed a sweeping proclamation imposing steep tariffs on imports of steel, aluminium and copper, significantly tightening trade controls under the banner of national security.

The new order mandates that tariffs be applied to the “full customs value” of imported metal products and their derivatives. This move is aimed at closing loopholes that, according to the administration, allowed importers to undervalue goods and reduce their duty burden under earlier regulations.

The latest action builds upon earlier measures under Section 232, through which the United States had already determined that rising imports of critical metals pose a threat to national security. Officials said the revised framework is designed to ensure greater transparency and fairness in the valuation of imported goods.

Under the new tariff regime, most primary steel and aluminium products will attract a 50 per cent ad valorem duty. Meanwhile, certain derivative products — items manufactured using these metals — will face a 25 per cent tariff, depending on their composition.

Explaining the rationale, a senior administration official stated that importers will now be required to pay duties based on the actual transaction value rather than artificially reduced prices. “We are going to charge 50 per cent of the full value of the steel paid by US customers,” the official said, adding that exporters had previously manipulated pricing structures to evade higher tariffs.

The administration has also introduced a simplified classification system for derivative products. Items containing only small amounts of metal will be exempt from additional tariffs, while those with substantial metal content will face a flat 25 per cent duty. Officials believe this approach will streamline compliance and reduce administrative complexity for businesses.

Government data cited in the proclamation shows that domestic capacity utilisation has improved since earlier tariffs were introduced, reaching approximately 50.4 per cent for aluminium and 77.2 per cent for steel. However, the administration aims to push these figures closer to the targeted 80 per cent mark, arguing that stronger measures are needed to prevent circumvention through derivative imports.

In addition to tariff hikes, the proclamation grants authorities the power to expand the list of affected products on a “rolling basis” if imports are found to undermine national security objectives. This flexibility is expected to allow quicker responses to evolving trade patterns.

Despite concerns from industry observers, officials downplayed the potential impact on consumers. They argued that the measures primarily affect trade mechanisms rather than retail pricing. “I don’t think it’s going to have any impact on affordability,” the official said.

The new tariffs are set to come into effect from April 6 and will apply to all covered goods entering the US market from that date. The move marks a significant escalation in Washington’s efforts to protect domestic industries while reshaping global trade dynamics in key industrial sectors.