HS 6810.91.00 — US duty status

Prefabricated structural components for building or civil engineering

Verified against the Commerce and tariff-schedule data as of 2026-09-07. All published HS codes

Tariff schedule rates

MFN (column 1 general)

0%

USMCA preferential

not stated as an ad valorem rate — check the schedule

Base schedule rates for HS 6810.91.00 — trade-remedy programs below stack on top, and USMCA requires the good to actually qualify under the rules of origin.

Duty programs that list this code

Programs naming HS 6810.91.00, each with the instrument that set it:

Section 301 (301 list 3)

25% — origins: CN — effective 2018-07-06

Chapter 99: 9903.88.03

8 active AD/CVD orders name this code

Broker verification required. An HTS number appearing on an AD/CVD order's public case page, on Commerce's Active Case data, or on Triangle's own order-to-HTS mapping does NOT establish that a specific product is within that order's scope. Only Commerce's written Scope of the Order narrative — or a scope ruling issued under 19 CFR 351.225 — is dispositive. Triangle surfaces the order's documents and this caveat; it never issues its own in-scope or out-of-scope verdict.

Listing on a case page is not proof of coverage — the order's written scope decides that. The documents below are where that text lives.

A-570-084 — AD

China. Quartz Surface Products. Effective 2019-07-11. Phase: order.

Commerce case page

C-570-085 — CVD

China. Quartz Surface Products. Effective 2019-07-11. Phase: order.

Commerce case page

C-570-955 — CVD

China. Magnesia Carbon Bricks. Effective 2010-09-21. Phase: order.

Commerce case page

A-533-889 — AD

India. Quartz Surface Products. Effective 2020-06-22. Phase: order.

Commerce case page

C-533-890 — CVD

India. Quartz Surface Products. Effective 2020-06-22. Phase: order.

Commerce case page

A-201-837 — AD

Mexico. Magnesia Carbon Bricks. Effective 2010-09-20. Phase: order.

Commerce case page

A-489-837 — AD

Türkiye. Quartz Surface Products. Effective 2020-06-22. Phase: order.

C-489-838 — CVD

Türkiye. Quartz Surface Products. Effective 2020-06-22. Phase: order.

Where the scope is actually decided

8 scope-of-the-order narratives and 20 published scope rulings or circumvention determinations published by Commerce for the orders above — precedent to read, not a verdict about yours.

The programs and orders above name HS 6810.91.00 — not what a specific entry costs. Run it through the free Tariff Calculator for the stacked, cited total and a dated Entry Memo.