U.S. Administration Prepares Tiered Tariff System for Steel and Aluminum Imports
The Trump administration is set to unveil a tiered tariff system for steel and aluminum imports, marking a significant shift in how these duties are calculated. According to multiple sources familiar with the matter, the new approach will move from content-based assessments to tariffs based on the full value of imported products. This change comes in direct response to extensive pushback from American businesses that have struggled with the complexity of the current system.
New Tariff Structure Details
The revised tariff framework will maintain the existing 50 percent duty on numerous derivative products, with calculations now based on the complete value of imported goods rather than just their steel or aluminum content. Many other products will face a reduced 25 percent tariff rate, while some items may fall below this level or even reach zero duty under specific conditions.
Key aspects of the new system include:
- All items in harmonized tariff schedule Chapter 72 and most in Chapter 73 will remain at the full 50 percent duty
- Certain items in Chapter 76 will also incur the 50 percent duty
- Products under remaining chapters containing steel and aluminum will receive a 25 percent tariff
- If an item's total steel or aluminum content drops below 15 percent of the product, the tariff rate will fall to zero
Business Community Response and Market Impact
American companies have been vocal about their difficulties with the current tariff structure, complaining to administration officials including Commerce Secretary Howard Lutnick and U.S. Trade Representative Jamieson Greer. The complexity of calculating appropriate charges on imports containing steel and aluminum materials has threatened company sales and profits, creating significant operational challenges.
The market has already reacted to these developments, with shares of major aluminum and steel companies experiencing declines. Century Aluminum Co. and Alcoa Corp. both fell more than 1.6 percent in U.S. postmarket trading, while steelmaker Commercial Metals Co. sank 1.4 percent following news of the impending changes.
Background and Political Context
This tariff adjustment comes as the Trump administration faces voter discontent over economic concerns, particularly regarding the cost of living. These economic worries threaten to undermine Republican efforts to maintain control of Congress in the upcoming midterm elections. The administration has been working to rebuild its trade regime following Supreme Court decisions that struck down some country-by-country tariffs.
The original 50 percent levy on foreign steel and aluminum was implemented last year primarily to address Chinese overcapacity concerns. However, the policy ended up significantly impacting other major trading partners including Canada, the European Union, Mexico, and South Korea. The subsequent addition of derivative products containing these metals created what many companies described as an arduous task of identifying material percentages in goods sourced from overseas.
Implementation Timeline and Future Adjustments
The expected announcement could come as early as Thursday, according to sources who spoke on condition of anonymity. One source indicated that these duties remain subject to change if imports don't decline or if import data shows insufficient improvement in the situation.
The administration's move represents an attempt to simplify what has become a complex and burdensome process for American businesses while maintaining the protective measures originally intended to address concerns about foreign steel and aluminum production capacity.



