The move marks the latest chapter in Washington’s increasingly aggressive trade strategy, opening a new front in its campaign to reshape global commerce and pressure trading partners to tighten labor standards.

Late Tuesday, the Office of the United States Trade Representative (USTR) unveiled the proposal following a Section 301 investigation into what it described as unfair trade practices. The plan seeks to restore emergency tariffs that were struck down earlier this year by the U.S. Supreme Court.

Under the proposal, imports from Pakistan, Canada, Ecuador, the European Union, Indonesia, Mexico, Argentina, Bangladesh, Cambodia, El Salvador, Guatemala, Malaysia, Taiwan and the United Kingdom would face an additional 10 percent tariff.

A further group of 45 economies including China, India, Japan, South Korea, Vietnam, Australia and New Zealand would be hit with a steeper 12.5 percent duty.

At the heart of the dispute is a growing concern in Washington that goods produced through forced labor continue to find their way into international markets despite existing restrictions. U.S. officials argue that this creates an uneven playing field, allowing foreign producers to gain an unfair advantage over American workers.

“Our most important trading partners’ failure to stop imports made with forced labor is unacceptable,” U.S. Trade Representative Jamieson Greer said, arguing that American workers should not be forced to compete against products produced under questionable labor conditions.

The proposal, however, has triggered swift pushback from key U.S. allies and trading partners. European officials dismissed the findings as unjustified, with critics arguing that Washington is searching for legal cover after deciding on tariffs first. One senior European lawmaker described the conclusions as “ridiculous,” pointing to the European Union’s 2024 legislation banning products linked to forced labor.

The criticism reflects a broader frustration in Europe, where policymakers increasingly view U.S. trade actions as part of a pattern in which economic pressure arrives before the legal rationale.

“This is starting to look like a case where the tariff comes first and the justification follows later,” one European official suggested. The timing is especially sensitive because the proposal arrives ahead of the expiration of a temporary 10 percent tariff introduced by the Trump administration after a Supreme Court ruling invalidated earlier emergency duties.

Despite the disagreement, European leaders stressed that they remain committed to last year’s trade agreement with Washington and are seeking to avoid a wider commercial dispute.

Elsewhere, Britain said it remains in close contact with U.S. officials and continues to strengthen measures against forced labor. Taiwan expressed optimism that final decisions would reflect existing trade understandings, while China flatly rejected the allegations, insisting that “there is no forced labor in China.”

India, which also faces a proposed 12.5 percent tariff, noted that discussions with Washington are ongoing and emphasized that the measures remain under review rather than finalized. The USTR will accept public comments on the proposal until July 6, with a public hearing scheduled for July 7.

While the tariffs are far from certain, the proposal sends a clear signal: the White House is prepared to use trade policy as both an economic weapon and a political message. Whether that approach changes behavior abroad—or simply deepens trade tensions—may become one of the defining questions of the next phase of global commerce.

For now, businesses across multiple continents are watching closely, aware that even proposed tariffs can send shockwaves through supply chains long before they become reality.