HTS Browser / Section XVI — Machinery, electrical equipment / Chapter 84 / Heading 8405 / 8405
HTS 8405 Chapter 84 Section XVI Synced Apr 28, 2026

Producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers; parts thereof:

Producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers; parts thereof:

Base HTS duty
Column 1 General
Effective (China)
15%
Ch. 99
Stacked measures
1
at China
Last change
2 months
Ch. 99 15.0%

What this covers

Producer gas or water gas generators, including acetylene gas generators and similar water process gas generators, with or without purifiers, and their parts.

producer gas generator water gas generator acetylene gas generator gas generator purifier
Duty stack · origin china

How the 15.0% is built.

0%3.8%7.7%11.5%15.4%
122 · 15.0%
Section 122
All origins except · 9903.01.80
+15.00%
MPF (merchandise processing)
0.3464% · min $31.67 / max $614.35
+0.35%
Effective ad valorem duty (excl. fees)
15.00%
Stacking order
  1. 1
    Apply base HTS rate
    Column 1 General (MFN) or Special (FTA)
  2. 2
    Add Section 301 (if origin qualifies)
    Chapter 99 subheading layered on
  3. 3
    Add IEEPA / 232 surcharges
    Country-scoped emergency measures
  4. 4
    Add MPF & HMF fees
    Applied to entered value

You may also consider

  • 8405

    Producer gas or water gas generators and parts.

  • 8404

    Gas generators, other than those in 8405.

  • 8406

    Gas generators, other than those in 8405.

Origin matters

Rate by country of origin

Same HTS, very different landed cost. Here's how 8405 looks from the top trading partners — on a $10,000 shipment.

FTA partner Section 301 IEEPA in effect
Rates from last sync on Apr 28, 2026 · assumes entered value $10,000 · fees (MPF/HMF) excluded from the comparison above.
Questions about 8405

FAQ for this HTS code.

What is this HTS code?

This is a US Harmonized Tariff Schedule (HTS) code that classifies "Producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers; parts thereof:". It determines base duty rates for imports; additional duties may apply by country of origin.

Does origin affect duty?

Yes. General and Special rates apply by trade agreement and origin. Additional duties (Section 301, 232, IEEPA) are origin-specific. Use the tariff calculator or resolve API with an origin to see full duty.

How do I compute total duty?

Use our tariff calculator (with HTS and optional origin) or the API endpoint GET /api/v1/tariffs/resolve with hts and origin. The API returns base tariffs and additional measures separately; sum as needed for your use case.

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Tariff data is informational; final determinations are made by CBP.
HTS 8405 · synced Apr 28, 2026 14:34 UTC