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HTS Browser / Section V — Mineral products / Chapter 25 / Heading 2523 / 2523
HTS 2523 Chapter 25 Section V Synced Apr 30, 2026

Portland cement, aluminous cement, slag cement, supersulfate cement and similar hydraulic cements, whether or not colored or in the form of clinkers:

Portland cement, aluminous cement, slag cement, supersulfate cement and similar hydraulic cements, whether or not colored or in the form of clinkers:

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

What this covers

Portland cement and other hydraulic cements, including aluminous, slag, and supersulfate types, whether colored or in clinker form.

Portland cement Aluminous cement Slag cement Supersulfate cement Hydraulic cement clinkers
Duty stack · origin taiwan

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

  • 2523.10

    Portland cement, parent heading for this product family.

  • 2523.20

    Aluminous cement, specific type under this heading.

  • 2523.30

    Slag cement, specific type under this heading.

  • 2523.40

    Supersulfate cement, specific type under this heading.

Origin matters

Rate by country of origin

Same HTS, very different landed cost. Here's how 2523 looks from the top trading partners — on a $10,000 shipment.

FTA partner Section 301 IEEPA in effect
Rates from last sync on Apr 30, 2026 · assumes entered value $10,000 · fees (MPF/HMF) excluded from the comparison above.
Questions about 2523

FAQ for this HTS code.

What is this HTS code?

This is a US Harmonized Tariff Schedule (HTS) code that classifies "Portland cement, aluminous cement, slag cement, supersulfate cement and similar hydraulic cements, whether or not colored or in the form of clinkers:". 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 2523 · synced Apr 30, 2026 14:22 UTC