U.S. Launches New Trade Investigations to Justify Tariffs

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The U.S. Trade Representative Office, led by Jamison Greer, is initiating investigations under Section 301 of the Trade Act of 1974 into more than a dozen countries, including China, the EU, Mexico, Japan, and India. The goal is to prove that excessive foreign government subsidies are allowing foreign producers to sell goods in the U.S. at artificially low prices, harming American businesses.

Why it matters

The U.S. administration believes that unfair foreign trade practices, enabled by state subsidies, are putting American manufacturers at an unfair disadvantage and leading to factory closures and job losses. By launching these new investigations, the White House aims to build a legal justification for imposing tariffs that were previously blocked by the Supreme Court.

The details

The investigations will examine whether foreign governments are pouring money into factories and creating "greenhouse conditions" that allow them to produce goods at artificially low costs and sell them in the U.S. below market prices. This makes it impossible for American manufacturers, who don't receive the same level of government support, to compete. The administration hopes the investigations will provide a legal basis to impose tariffs that were previously blocked.

• The U.S. Trade Representative Office initiated the investigations in March 2026.
• The interim 10% global tariff introduced by the White House expires in July 2026.

What’s next

By the time the interim 10% global tariff expires in July 2026, the U.S. Trade Representative's investigations are expected to be completed, providing a legal justification for the White House to impose new tariffs.