HTS Browser / Section VI — Chemical industry products / Chapter 35 / Heading 3507 / 3507.90.70.00
HTS 3507.90.70.00 Chapter 35 Section VI Synced Jul 4, 2026

Other (3507.90.70.00)

HTS 3507.90.70.00 (Other) has a US general (Column 1) duty rate of Free. Country of origin can add Section 301, Section 232, or IEEPA measures on top; use the calculator for total duty.

Other

Base HTS duty
Free
Column 1 General
Effective (China)
35%
301 + Ch. 99
Stacked measures
2
at China
Last change
4 months
Ch. 99 10.0%
Duty stack · origin china

How the 35.0% is built.

0%8.8%17.7%26.5%35.4%
301 · 25.0%
122 · 10.0%
Base HTS 3507.90.70.00
Column 1 General · Free
0.00%
Section 301
CN-origin · 9903.88.03
+25.00%
Section 122
All origins except · 9903.03.01
+10.00%
MPF (merchandise processing)
0.3464% · min $31.67 / max $614.35
+0.35%
Effective ad valorem duty (excl. fees)
35.00%
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
Origin matters

Rate by country of origin

Same HTS, very different landed cost. Here's how 3507.90.70.00 looks from the top trading partners — on a $10,000 shipment.

FTA partner Section 301 IEEPA in effect
Rates from last sync on Jul 4, 2026 · assumes entered value $10,000 · fees (MPF/HMF) excluded from the comparison above.
Siblings in heading 3507

Related HTS codes

Browse full Chapter 35
Questions about 3507.90.70.00

FAQ for this HTS code.

What is this HTS code?

This is a US Harmonized Tariff Schedule (HTS) code that classifies "Other (3507.90.70.00)". 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.

Learn how these duties work

Tariff programs explained

Legal notes

Footnotes & requirements

Endnote See 9903.88.03.
See 9903.88.03.
Applies to columns: general
Endnote See 9903.90.08.
See 9903.90.08.
Applies to columns: other
Put 3507.90.70.00 in your code.
The effective rate, full duty stack, and every stacked measure for any origin — in one API call. Single lookups are open; an account adds API keys, batch resolve, and saved-code rate alerts.
Tariff data is informational; final determinations are made by CBP.
HTS 3507.90.70.00 · synced Jul 4, 2026 06:30 UTC