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Factbox-The 16 US trading partners hit by Trump's '301' probes

Published by Global Banking & Finance Review

Posted on March 11, 2026

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· Last updated: April 1, 2026

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Factbox-The 16 US trading partners hit by Trump's '301' probes
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March 11 (Reuters) - The United States on Wednesday said it was launching unfair trade practice investigations into 16 key trading partners, part of an urgent effort by President Donald Trump's

US Launches Section 301 Probes Into 16 Major Trading Partners for Unfair Trade

Overview of Section 301 Investigations and Targeted Countries

March 11 (Reuters) - The United States on Wednesday said it was launching unfair trade practice investigations into 16 key trading partners, part of an urgent effort by President Donald Trump's administration to restore tariffs recently struck down by the U.S. Supreme Court as illegal.

The probes are being conducted under Section 301 of the Trade Act of 1974, which empowers the U.S. Trade Representative to impose tariffs or other retaliatory measures against trading partners determined to employ unfair trade practices.

The administration alleges the 16 all employ policies that disadvantage U.S. goods producers, resulting in all but one of them running substantial goods trade surpluses with the U.S. 

Details of the Section 301 Probes

Countries Under Investigation

Here are the 16 subject to the investigation:    

Trade Surplus/Deficit Data

Country/Area Goods trade Goods trade Change 

surplus/defici surplus/defici ($ mln)

t t 2024 ($ mln)

2025 ($ mln)

European Union 218,750 235,874 -17,124

China 202,071 295,515 -93,444

Mexico 196,913 171,491 25,422

Vietnam 178,183 123,457 54,726

Taiwan 146,756 73,718 73,038

Thailand 71,856 45,492 26,364

Japan 63,883 69,392 -5,509

India 58,216 45,801 12,415

Korea, South 56,416 65,967 -9,551

Switzerland 34,304 38,283 -3,979

Malaysia 30,791 24,854 5,937

Indonesia 23,716 17,893 5,823

Cambodia 14,928 12,327 2,601

Bangladesh 7,146 6,063 1,083

Norway 2,069 2,043 26

Singapore -3,553 -1,855 -1,698

Source: U.S. Census Bureau trade data

Reporting and Editorial Notes

(Reporting by Dan Burns in New York; Editing by Matthew Lewis)

Key Takeaways

  • Section 301 of the Trade Act of 1974 empowers the U.S. Trade Representative to impose tariffs or retaliatory measures in response to unfair foreign trade practices. (congress.gov)
  • This move follows a Supreme Court ruling invalidating certain Trump-era emergency tariffs, prompting the administration to pursue legally defensible trade enforcement tools. (mwe.com)
  • Historically, Section 301 tariffs—particularly those on China—have reduced imports and increased domestic production and prices in several sectors, influencing trade balances and prompting legal and political debate. (usitc.gov)

References

Frequently Asked Questions

What is a Section 301 investigation?
A Section 301 investigation, under the Trade Act of 1974, allows the US to impose tariffs or other measures against trading partners engaged in unfair trade practices.
How many US trading partners are being investigated?
Sixteen trading partners are subject to the current Section 301 unfair trade practice investigations announced by the US.
Which countries are named in the current Section 301 probes?
Some of the countries under investigation include the European Union, China, Mexico, Vietnam, Taiwan, Thailand, and Japan.
What is the purpose of these Section 301 investigations?
The purpose is to address policies that allegedly disadvantage US goods producers and restore tariffs previously struck down by the US Supreme Court.
Which branch of the US government conducts Section 301 investigations?
The US Trade Representative (USTR) conducts Section 301 investigations.

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