U.S. imports of quicklime (HS 252210) totaled $5.9M in August 2026, imported from 17 countries.
Importers of Quicklime paid $50K in duties in August 2026, an effective tariff rate of 0.85% of the $5.9M imported — duty actually collected as a share of that value, not the published tariff schedule.
Last updated: August 2026 dataProduced by calcining limestone at high temperatures, quicklime (calcium oxide) is a primary industrial alkali used in steelmaking, water treatment, flue-gas desulfurization, and chemical manufacturing. Canada and Mexico dominate US import supply, with the United Kingdom, Spain, and Austria also contributing volumes. Because quicklime reacts vigorously with moisture, shipments require careful packaging documentation and hazardous-material handling declarations at entry. The single 10-digit tariff line 2522100000 covers all imported quicklime regardless of purity or particle size.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
907 shipments/mo
No — all quicklime, regardless of purity level or granulation (lump, pebble, or ground), falls under the single tariff line 2522100000. Grade distinctions matter commercially but do not create separate HTS classifications at the 10-digit level.
Quicklime is classified as a hazardous material due to its reactivity with water and potential to generate heat. Importers should ensure compliance with DOT hazmat regulations for transport and provide appropriate safety data sheets (SDS) with the entry documentation.
HSChapter 25
ImportsExports
Imports
$5.9MYoY · free account
Exports
$2.8MYoY · free account
12-mo low · imports
YoY · free accountOver the twelve months to August 2026, the U.S. imported $58.5M of Quicklime.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 252210 — Quicklime, so the companies trading it can find you. Be the first supplier listed.
Subheading 1 of 3 in heading 2522
Subheading 252210 · $5.9M of $8.5M
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2522100000 | Quicklime | $5.9M | 0.85% | 7.95% | $50K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2522100000 | Quicklime | $2.8M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · August 2026
origin
Canada and Mexico together supply 92% of it. Turkey pays 12.5% duty; Canada 0.0%.
customs district
destination
entry
rate provision · imports
92.0% enters free of duty; duty collected equals 0.85% of total import value.