Verified 2026 United States Customs Data(View Sources)

Steel and Aluminum Import Duty & Landed Cost: South Korea to United States

Full 2026 tariff breakdown, customs duty calculations, and compliance alerts for importing into United States.

Why Customs Classification Matters for Steel and Aluminum

Importing steel and aluminum from South Korea to the US can be complex due to various compliance challenges. The US has imposed tariffs on certain steel and aluminum products under Section 232 of the Trade Expansion Act, with rates ranging from 10% to 25%. Additionally, importers must comply with regulations such as the Buy America Act and the American Iron and Steel Act. Non-compliance can result in significant fines, penalties, and even shipment seizures. The Harmonized System (HS) codes for steel and aluminum products must be accurately classified to determine the applicable duty rates. Furthermore, importers must obtain necessary certificates, such as the Certificate of Origin, to claim preferential treatment under trade agreements like the US-Korea Free Trade Agreement (KORUS).

Cost Breakdown

Component	Rate	Amount
Product Value	—	USD 15000.00
Shipping	—	USD 1200.00
Insurance	—	USD 150.00
CIF Value	—	USD 16350.00
Customs Duty	8.5%	USD 1389.75
Merchandise Processing Fee (MPF)Min $31.67, Max $614.35	0.3464%	USD 56.64
Harbor Maintenance Fee (HMF)	0.125%	USD 20.44
VAT/GST	N/A (state sales tax varies)	USD 0.00
Total Landed Cost	—	USD 17816.83

Step-by-Step Import & Compliance Guide

To navigate the complexities of importing steel and aluminum from South Korea to the US, importers should follow a step-by-step approach. First, determine the applicable HS codes and duty rates for the specific products. Next, verify the eligibility for preferential treatment under KORUS or other trade agreements. Then, ensure compliance with technical requirements, such as ASTM standards, and obtain necessary certifications. Importers should also work with a qualified customs broker to prepare and submit the required documentation, including the Commercial Invoice, Certificate of Origin, and ISF. Finally, importers should maintain accurate records and be prepared for potential audits or inspections by US Customs and Border Protection.

How Much Does It Cost to Import Steel and Aluminum into United States?

When importing Steel and Aluminum from South Korea to United States, the applicable customs duty rate is 8.5% on the CIF value (Cost + Insurance + Freight). Additionally, a VAT/GST of N/A (state sales tax varies) is applied on the dutiable value. The total landed cost depends on your specific product value, shipping method, and insurance — use the calculator above to get an exact breakdown for your shipment.

These rates are based on 2026 tariff schedules and may vary depending on the precise HS code finalization by customs and any applicable trade agreements between South Korea and United States.

Customs Classification & Tariff Rates for Steel and Aluminum

Steel and Aluminum is typically classified under HS Code various classifications when imported into United States. At this classification, the customs duty rate is 8.5%. Accurate classification is critical — ensure your commercial invoice and packing list explicitly reference this HS code.

Misclassification can result in shipment delays, penalties, or overpayment of duties. If trade agreements exist between South Korea and United States, a certificate of origin may qualify your goods for preferential (reduced) duty rates.

Frequently Asked Questions

What is the duty rate for steel sheets imported from South Korea to the US?

The duty rate for steel sheets from South Korea can range from 10% to 25% under Section 232 tariffs, depending on the specific product and HS code.

Do I need a certificate of origin for steel imports from South Korea?

Yes, a Certificate of Origin is required to claim preferential treatment under the KORUS agreement and to comply with US Customs regulations.

What is the Harmonized System (HS) code for aluminum sheets?

The HS code for aluminum sheets can vary depending on the specific product, but examples include 7606.12.10 for aluminum sheets with a thickness of 0.5 mm or more.

Can I claim duty-free treatment for steel imports from South Korea under the USMCA?

No, the USMCA does not apply to imports from South Korea. However, you may be eligible for duty-free treatment under the KORUS agreement.

What is the deadline for submitting the Importer Security Filing (ISF) for steel imports?

The ISF must be submitted at least 24 hours prior to the shipment's arrival in the US.