Tandom · Duty calculator
HTS 7403.21.00.00 is the U.S. Harmonized Tariff Schedule classification for Copper-zinc base alloys (brass). It's a 10-digit statistical line in Chapter 74: Copper and articles thereof, Section XV: Base Metals and Articles of Base Metal, used by U.S. Customs and Border Protection to determine the duty rate at entry. 9 active AD/CVD orders flag this code.
New to HTS codes? Read our guide on how HTS classification works →
Active orders that may apply to imports under this HTS code. HTS coverage is advisory — actual scope depends on each order's product description. Run the AD/CVD lookup → to check whether your specific shipment is in scope.
Brass Rod
Brass Rod
Brass Rod
Brass Rod
Brass Rod
Brass Rod
Brass Rod
Brass Rod
Brass Rod
Past CBP decisions classifying real products under this HTS code. Useful precedent when classifying a similar product — each ruling shows how CBP interpreted the code for a specific case.
Source: CBP CROSS (view all rulings on rulings.cbp.gov →)
HTS 7403.21.00.00 is the U.S. Harmonized Tariff Schedule classification for Copper-zinc base alloys (brass). It belongs to Chapter 74 of the HTSUS.
The general (Column 1) duty rate for HTS 7403.21.00.00 is 1%. This is the most-favored-nation (MFN) rate that applies to imports from World Trade Organization member countries.
Yes. Imports of HTS 7403.21.00.00 from countries party to a trade program (such as USMCA, KORUS, GSP, or the African Growth and Opportunity Act) may qualify for the special rate: Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG). Eligibility depends on rules of origin and certification.
The Column 2 rate for HTS 7403.21.00.00 is 6%. This rate applies to imports from countries that do not have normal trade relations with the United States (currently Cuba and North Korea).
No active Chapter 99 tariff overlays (Section 301, Section 232, IEEPA reciprocal, etc.) currently flag HTS 7403.21.00.00 in Tandom's catalog. Use the calculator's date + origin inputs to confirm against any retroactive overlay you may be filing.
Yes — 9 AD/CVD orders flag this code: C-508-815 (CVD, Israel), A-351-859 (AD, Brazil), C-533-916 (CVD, India) plus 6 more. Open the code page for deposit rates, scope determinations, and the linked case lookups.
Free Trade Agreement and special-program eligibility
Section and chapter notes that govern this code
Throughout this schedule, the expression 'base metals' means: iron and steel, copper, nickel, aluminum, lead, zinc, tin, tungsten (wolfram), molybdenum, tantalum, magnesium, cobalt, bismuth, cadmium, titanium, zirconium, antimony, manganese, beryllium, chromium, germanium, vanadium, gallium, hafnium, indium, niobium (columbium), rhenium, and thallium.
Tandom guides relevant to this code
What changed April 6, 2026, what stayed the same, and how to file a steel, aluminum, or copper line in ACE without leaving duty exposure on the table.
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