HTS Browser / Section V — Mineral products / Chapter 25 / Heading 2522 / 2522
HTS 2522 Chapter 25 Section V Synced Apr 28, 2026

Quicklime, slaked lime and hydraulic lime, other than calcium oxide and hydroxide of heading 2825:

Quicklime, slaked lime and hydraulic lime, other than calcium oxide and hydroxide of heading 2825:

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

Quicklime, slaked lime and hydraulic lime are calcium-based materials used in construction, agriculture, and industrial processes, excluding calcium oxide and hydroxide covered under heading 2825.

quicklime slaked lime hydraulic lime industrial lime
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

  • 2521

    Calcium carbonate, calcium sulfate, calcium silicate and other calcium compounds – adjacent classification.

  • 2523

    Calcium hydroxide, calcium carbonate, calcium sulfate and other calcium compounds – adjacent classification.

  • 2825

    Calcium oxide and hydroxide – parent heading for related lime products.

Origin matters

Rate by country of origin

Same HTS, very different landed cost. Here's how 2522 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 2522

FAQ for this HTS code.

What is this HTS code?

This is a US Harmonized Tariff Schedule (HTS) code that classifies "Quicklime, slaked lime and hydraulic lime, other than calcium oxide and hydroxide of heading 2825:". 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.

Never miss a rate change on 2522.
We'll email you within an hour of any measure affecting this code.
Tariff data is informational; final determinations are made by CBP.
HTS 2522 · synced Apr 28, 2026 14:34 UTC