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HS Code 7403.21 : Copper alloys, Copper-zinc base alloys (brass)

The 6-digit Harmonized System (HS) code for copper alloys, copper-zinc base alloys (brass) is 7403.21. Under the 2026 Vietnam (Tổng cục Hải quan), the representative MFN general duty rate is 0% [Tổng cục Hải quan].

Chapter

Ch 74

Heading

7403

Subheading

7403.21

VN MFN Duty

MODULE 3: SIGNATURE A: HS DECODE VISUAL HIERARCHY

Chapter 74

Refined copper and copper alloys, unwrought (other than master alloys of heading 7405)

Heading 7403

7403

Refined copper and copper alloys, unwrought (other than master alloys of heading 7405)

Subheading .21

.21

Copper alloys, Copper-zinc base alloys (brass)

MODULE 4: SIGNATURE B: TARIFF MATRIX

Import Duty Rates by Destination

Vietnam (Tổng cục Hải quan Tariff 2026)

7403.21.00.00

Vietnam MFN Import Duty (Thuế nhập khẩu)

Verified July 2026 · Vietnam Customs

MODULE 5: VIETNAM IMPORT DUTY & TAX BREAKDOWN

Thuế Nhập Khẩu (Import Duty)

WTO MFN Rate

Import VAT (Thuế GTGT)

8% – 10%

CIF + Duty Base

De Minimis Threshold

VND 1M (~$40)

Express Courier Limit

TRACK THIS HS CODE

Get Real-Time Tariff & Trade Remedy Change Alerts for HS 7403.21

Receive an automated email notification whenever USITC or CBP publishes duty rate adjustments or customs notices for 7403.21.

MODULE 6: Mandatory Customs Entry Document Matrix

Rule-Derived Customs Entry Package Checklist

UNIVERSAL DOCUMENT

Commercial Invoice

Itemized description, currency, Incoterms, seller/buyer details, and country of origin.

UNIVERSAL DOCUMENT

Packing List & Bill of Lading

Gross/net weight, container/seal numbers, piece count, and transport B/L or Air Waybill.

PREFERENTIAL RULE

Certificate of Origin (If Claiming FTA)

Required only when claiming zero-duty preference under USMCA, KORUS, or GSP.

MODULE 7: Regulatory Compliance & Partner Government Agency (PGA) Flags

Standard Entry This commodity does not carry mandatory PGA pre-clearance flags under the ACE message set.

MODULE 8: VN Trade Remedies & Safeguards

Tổng cục Hải quan (Vietnam Customs) Anti-Dumping / Trade Defence

Standard 2026 Vietnam Customs Import Tariff Schedule

Steel & Commodity Safeguards

Exempt (Non-Steel Commodity)

Regulatory Compliance Status

Standard Statutory Clearance

MODULE 9: Free Trade Agreements (FTA) & Rules of Origin (RoO)

Browse all preferential trade calculators & compliance tools in our Customs Tools Hub ↗.

Agreement Code	Trade Agreement / Program	Preferential Rate	Rules of Origin (RoO) Requirement
MFN	WCO Most-Favoured-Nation (MFN) Status	Standard MFN Rate	Applies to all WTO member states for Copper alloys, Copper-zinc base alloys (brass).
FTA	VN Preferential & Regional Trade Agreements	Free / Concessional	Subject to official Certificate of Origin & Rules of Origin (RoO) requirements.

MODULE 10: Logistics, Freight & Transport Specifications

Standard 20ft Container

~28 CBM / 28,000 kg Payload

Standard 40ft High-Cube

~68 CBM / 28,600 kg Payload

Stowage Factor & Handling

Standard commercial packaging for Copper alloys, Copper-zinc base alloys (brass)

MODULE 11: Advance Classification Determination (Tổng cục Hải quan)

Legally binding advance classification rulings issued by Vietnam Customs for HS 7403.21.

Query official Vietnam Customs portal:

Search Official Vietnam Customs Portal for 7403.21 →

Vietnam Declarable Tariff Lines (7403.21)

National line-level (8/10-digit) detail for Vietnam (Tổng cục Hải quan): coverage in progress.

Universal 6-digit WCO backbone applied rate: 0%. Confirm the full national commodity code at the official source (Tổng cục Hải quan).

MODULE 12: Candidate Subheadings & Related Codes

Related HS Code	Heading Category	Action
7403.11	Subheading under Heading 7403	HS 7403.11 undefined Duty & Entry Rules →
7403.12	Subheading under Heading 7403	HS 7403.12 undefined Duty & Entry Rules →
7403.13	Subheading under Heading 7403	HS 7403.13 undefined Duty & Entry Rules →
7403.19	Subheading under Heading 7403	HS 7403.19 undefined Duty & Entry Rules →

Official Primary Sources & Authority References

Vietnam Customs (Tổng cục Hải quan) ↗

Official Vietnam tariff schedule and MFN import duty (Thuế nhập khẩu) rates.

Vietnam Customs Advance Classification Portal ↗

Tổng cục Hải quan binding advance classification determination database.

MODULE 14: Frequently Asked Questions (FAQ) & Operational Guide

What is the 6-digit WCO tariff classification and Vietnam (Tổng cục Hải quan) general duty for Copper alloys, Copper-zinc base alloys (brass)?

Under WCO Harmonized System 2022 and Vietnam (Tổng cục Hải quan), Copper alloys, Copper-zinc base alloys (brass) is classified under HS 7403.21 (Heading 7403, Chapter 74). The representative VN MFN general duty rate is 0%.

How is HS 7403.21 distinguished within Heading 7403 (Refined copper and copper alloys, unwrought (other than master alloys of heading 7405))?

Heading 7403 covers Refined copper and copper alloys, unwrought (other than master alloys of heading 7405). Subheading 7403.21 specifically isolates Copper alloys, Copper-zinc base alloys (brass). Importers must verify whether physical characteristics, processing state, or composition require alternative subheadings under Heading 7403.

What are the primary candidate subheadings related to HS 7403.21?

Related subheadings under Heading 7403 include 7403.11, 7403.12, 7403.13, 7403.19, 7403.22, 7403.29. Classification depends on processing stage, decaffeination, purity, or material form.

What mandatory commercial entry documents are required to import Copper alloys, Copper-zinc base alloys (brass)?

Commercial Invoice (detailing Incoterms, currency, and origin), Packing List, Bill of Lading (or Air Waybill), CBP Form 7501 Entry Summary, and a continuous customs bond are required for formal entries.

Can goods under HS 7403.21 enter duty-free under USMCA or Free Trade Agreements?

Yes. Eligible goods originating in Mexico, Canada, South Korea, or Australia enter duty-free under preference SPI codes (P, KR, AU) provided they satisfy Regional Value Content (RVC) or tariff-shift rules with a valid Certificate of Origin.

What is the US formal entry threshold for shipments of Copper alloys, Copper-zinc base alloys (brass)?

Commercial shipments of Copper alloys, Copper-zinc base alloys (brass) with a customs value exceeding $2,500 USD require formal customs entry (CBP Form 7501) and a continuous entry bond. Informal entry applies to lower values.

How can an importer obtain a binding CBP classification ruling for HS 7403.21?

Importers may submit an e-Ruling request under 19 CFR Part 177 to CBP National Commodity Specialist Division (NCSD) to obtain a legally binding tariff classification ruling prior to importation.

What is the import VAT rate for HS 7403.21 in Vietnam?

Vietnam assesses an import Value-Added Tax (VAT / Thuế GTGT) of 8% to 10% depending on commodity category, calculated on CIF value + statutory import duty.

What is Vietnam's de minimis duty-free threshold?

Vietnam's de minimis threshold for express parcel imports is VND 1,000,000 (~USD $40). Consignments below this value enter duty and tax free.

Which agency regulates customs entry and advance determinations in Vietnam?

Customs declarations and binding advance classification determinations are administered by Vietnam Customs (Tổng cục Hải quan).

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