Trade used as security

The United States is using tariffs less as a general import tax and more as a national-security tool aimed at chips, metals and other strategic goods. (congress.gov) On January 14, 2026, President Donald Trump signed a Section 232 proclamation on semiconductors, and U.S. Customs began collecting a 25% duty on covered chip imports and derivative products at 12:01 a.m. Eastern on January 15. (whitehouse.gov) (content.govdelivery.com) The new duty does not hit every chip. Customs guidance says the 25% rate applies to specific logic integrated circuits and products containing them that meet technical thresholds, while categories such as some U.S. data-center use, repairs and research and development entries are listed at 0%. (content.govdelivery.com) The White House said the semiconductor move followed a Commerce Department investigation that found chip, equipment and derivative-product imports threatened to impair U.S. national security. The proclamation says domestic capacity is not enough to meet demand and ties chips directly to defense systems and 16 critical infrastructure sectors. (whitehouse.gov) (federalregister.gov) That is a different rationale from the Biden administration’s 2024 Section 301 review, which kept China tariffs in place and raised some of them in strategic sectors. The White House said in May 2024 that tariffs on Chinese semiconductors would rise from 25% to 50% by 2025, alongside increases on electric vehicles, batteries, critical minerals, solar cells and medical products. (bidenwhitehouse.archives.gov) (ustr.gov) U.S. trade policy now layers those approaches. A Congressional Research Service timeline says the Trump administration expanded tariffs across trading partners in 2025 using the International Emergency Economic Powers Act and Section 232, while also opening more sector investigations that could produce additional duties. (congress.gov) The January semiconductor action was also written as a first step, not an endpoint. The White House fact sheet said Trump “may impose broader tariffs” on semiconductors and derivative products in the near future, alongside a tariff-offset program meant to steer more manufacturing into the United States. (whitehouse.gov) For allies trying to stay inside the U.S. market, that creates a new test: not just price, but whether their supply chains satisfy Washington’s security terms. A House of Commons Library briefing published on April 14, 2026, says the U.K.-U.S. Economic Prosperity Deal could open exemptions for semiconductors and other goods, and links tariff relief in steel and aluminum to supply-chain security requirements. (commonslibrary.parliament.uk) Importers, chipmakers and foreign governments are now dealing with a tariff system that can change by product, by country and by security classification. The closer a product is to semiconductors, energy, defense or critical infrastructure, the more likely U.S. trade policy is to treat it as a security asset rather than a standard import. (federalregister.gov) (congress.gov)