Harmonized Tariff Schedule of the United States · HTS code · HS 6810.91
6810.91.00: Precast concrete building components: Prefabricated structural components for building or civil engineering
Precast concrete building components
Not declarable on its own: use one of its 1 subdivisions Data: Harmonized Tariff Schedule of the United States · checked on 24 October 2026
- 6810 Articles of cement, of concrete or of artificial stone, whether or not reinforced:
- Other articles:
- 6810.91.00 Prefabricated structural components for building or civil engineering
What you pay
Importing into USA
US additional duties of HTS chapter 99 in force on 22 October 2026 are included (Section 301, 232, 338 and 201). IEEPA duties are no longer collected after the Supreme Court ruling of February 2026. Conditional exemptions (US content, end use, metal share) are not computed: check the provision.
Additional duties and import rules
Charges on top of the customs duty, and rules the goods must meet at the border.
Additional duties and charges 1
- Additional dutySection 301 — China — technology transfer, IP and innovation (2018 actions and 2024 four-year review) 25%
- Applies to goods from
- China
- In force
- from 24 September 2018
- Legal act
- HTSUS 9903.88.03
Same subheading in other tariffs
6810.91 Prefabricated structural components for building or civil engineering
UK Free Third-country duty 1 tariff line 
EU 1.7% Third-country duty 1 tariff line 
Türkiye 1.7% Third-country duty 1 tariff line 
Canada 5% General (MFN) 1 tariff line 
Mexico 5% – 15% General (MFN) 2 tariff lines · average 10% 
Brazil 7.2% General (MFN) 1 tariff line 
Argentina 7.2% General (MFN) 1 tariff line 
Peru Free General (MFN) 1 tariff line 
New Zealand 5% General (MFN) 1 tariff line 
Japan Free General (MFN) 1 tariff line 
Taiwan 5% General (MFN) 1 tariff line 
GCC 5% General (MFN) 1 tariff line 
Switzerland Free General (MFN) 1 tariff line 
Norway Free General (MFN) 6 tariff lines 
North Macedonia 18% – 20% General (MFN) 2 tariff lines · average 19% 
Nigeria 20% General (MFN) 1 tariff line Legal notes
In the Harmonized Tariff Schedule of the United States, 6810.91.00 is one of 1 line under subheading 6810.91, prefabricated structural components for building or civil engineering.
The general duty is free, and quantities are declared in t.
For the same subheading, the UK duty is free, the EU duty is 1.7%, the Türkiye duty is 1.7%, the Canada duty is 5%, the Mexico duty is 5%–15%, the Brazil duty is 7.2%, the Argentina duty is 7.2%, the Peru duty is free, the New Zealand duty is 5%, the Japan duty is free, the Taiwan duty is 5%, the GCC duty is 5%, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is 18%–20% and the Nigeria duty is 20%.
The United States imported goods of subheading 6810.91 worth US$88m in 2024; the largest supplier was Canada.
Questions and answers
What is the USA import duty for HTS code 6810.91.00?
The general duty in the Harmonized Tariff Schedule of the United States is free; the supplementary unit is t. Preferential rates for goods from agreement countries, anti-dumping duties and VAT are not included.
Where does the United States import these goods from?
For subheading 6810.91 as a whole, the largest supplier in 2024 was Canada (US$36m), followed by Türkiye.