Section 232 Steel & Aluminum Tariffs
In 2025, President Trump announced additional tariffs on imports of steel and aluminum products, as well as products containing steel or aluminum derivatives.
Below, we summarize the Chapter 99 codes and important CSMS messages you need to be aware of when importing such goods.
CSMS # 64680374 provides guidance on reporting the growing number of Chapter 99 numbers you must manage on your imports. Here’s the relevant snippet:
HTSUS SEQUENCE
For entry summary lines including multiple HTSUS numbers, the following sequence must be followed.
- Chapter 98 (if applicable)
- Chapter 99 number(s) for additional duties (if applicable)
- For trade remedies, first report the Chapter 99 number for Section 301, followed by the Chapter 99 number for IEEPA Fentanyl for China, Canada or Mexico, followed by the Chapter 99 number for IEEPA Reciprocal, followed by the Chapter 99 number for Section 232 or 201 duties (if applicable), followed by the Chapter 99 number for Section 201 or 232 quota (if applicable)
- Chapter 99 number(s) for REPLACEMENT duty or other use (i.e., MTB or other provisions)
- Chapter 99 number for other quota (not covered by #3) (if applicable)
- Chapter 1 to 97 Commodity Tariff
See also: Recent Tariff Guidance | IEEPA Tariffs, Reciprocal Tariffs, Steel & Aluminum Tariffs, and Automotive Tariffs.
Steel Tariffs
Importers must now be aware of whether their products contain steel.
Steel and Steel Derivative Tariffs (Section 232)
- 9903.81.87-93: (+25%)
- Mar 12 CSMS # 64348411 – Additional duties on steel and derivative steel articles
- Mar 12 CSMS # 64384423 – Updated guidance
Aluminum Tariffs
Aluminum and Aluminum Derivative Tariffs (Section 232)
- 9903.85.02, 04, and 07-09: (+25%)
- Mar 12 CSMS # 64348288 – Additional duties on aluminum and derivative aluminum articles
- Mar 12 CSMS # 64384496 – Updated guidance
- Apr 4 CSMS # 64639013 – Updated guidance
Russian Aluminum Tariffs (Section 232)
Additional tariffs apply on top of the Column 2 tariffs when importing aluminum from Russia.
- 9903.85.67-68: (+200%)
- Mar 12 CSMS # 64348288 – Additional duties for aluminum from Russia
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