Today, President Trump’s adjustments to the existing Section 232 steel and aluminum tariffs come into effect. These adjustments impose a 25% ad valorem duty on imports of steel articles and derivative products with no exemptions or exclusions, and increase the ad valorem tariff rate on imports of aluminum articles and derivative products from 10% to 25% with no exemptions or exclusions. Click here if you’d like to read a concise summary of the impact these tariffs will have on supply chains that my colleagues and I have written.
Keeping track of all of the tariffs that have been promulgated or proposed during the Trump administration can be a head-spinning task. To help follow the proliferation of tariffs in the Trump Administration, I have put together the following list of each of the tariff measures that have been implemented, pending, or proposed since January 20, 2025.
Here is the developing landscape of U.S. tariffs as of March 12, 2025:
| Country | U.S. Tariff Measure | Status |
| Global | Steel – 25% ad valorem duty on imports of steel articles and derivative products with no exemptions or exclusions | Implemented: 3/12/2025 |
| Global | Aluminum – 25% ad valorem duty on imports of aluminum articles and derivative products with no exemptions or exclusions | Implemented: 3/12/2025 |
| China | 20% ad valorem duty on all products of China | Implemented: 3/4/2025 CBP Fed Reg Notice & Increase |
| Canada | 10% ad valorem duty on energy 25% ad valorem duty on all other products of Canada | Suspended: 3/7/2025 |
| Mexico | 25% ad valorem duty on all products of Mexico | Suspended: 3/7/2025 |
| Global | Copper – potential tariffs on imports of copper and derivative products | Pending: Section 232 Investigation |
| Global | Lumber – potential tariffs on imports of timber, lumber, and their derivative products | Pending – Section 232 Investigation |
| China | Chinese Vessels -- Port Entry Fees up to $1.5 million on Chinese owned or built vessels | Pending – USTR Sec. 301 Investigation Public Hearing on 3/24/25 |
| Global | Reciprocal tariffs imposed on all imports based on foreign tariff levels | Pending Cabinet level analysis and recommendations for reciprocal tariffs expected 4/2/2205 |
| E.U. | 25% ad valorem duty on all products of the E.U. | Proposed: 2/26/2025 |
| Global | Semiconductors – 25%+ tariffs on imports of semiconductors | Proposed: 2/18/2025 Expected early April |
| Global | Pharmaceuticals– 25%+ tariffs on imports of pharmaceuticals | Proposed: 2/18/2025 Expected early April |
| Global | Automobiles– 25%+ tariffs on imports of automobiles | Proposed: 2/18/2025 Expected early April |
This list will be updated weekly as new tariffs are implemented and new targets for tariffs are identified by President Trump and the administration.
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