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U.S. imports of hydraulic cements (other) (HS 252390) totaled $10.4M in July 2026, traded with 9 countries.
Importers of Hydraulic Cements (Other) paid $7K in duties in July 2026 — an effective duty rate of 6.7% on $97K in dutiable value, based on actual customs collections rather than the published tariff schedule. Hydraulic Cements (Other) imports of $10.4M in July 2026 ran 29% above the year-to-date monthly average of $8.1M.
Last updated: July 2026 dataHydraulic cements not elsewhere specified — including masonry cement, expansive cement, oil-well cement, and blended cements such as slag or pozzolan cements — are consolidated under tariff line 2523900000 when they do not meet the specific definitions of Portland, aluminous, or other named cement headings. Canada and Mexico are the primary US import sources, with Germany, France, and China also contributing. The breadth of this residual heading means classification disputes can arise when a blended or specialty cement product's composition is ambiguous, making detailed technical documentation essential.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1.2K shipments/mo
Products commonly classified here include masonry cement, oil-well cement (API Class G or H), expansive cement, supersulfated cement, and blended cements (such as Portland-pozzolan or Portland-slag blends) that do not qualify as straight Portland cement under heading 2523.29. Importers should retain composition analysis and product specification sheets to support classification in this residual heading.
The classification turns on whether the product meets the compositional and performance definition of Portland cement under the HTS schedule notes. Blended cements with significant supplementary cementitious material additions may not qualify as Portland cement and should be classified under 2523900000. A binding ruling request to US Customs and Border Protection is advisable for novel or borderline products to avoid reclassification and penalty exposure.
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Subheading 3 of 5 in heading 2523
Subheading 252390 · $10.4M of $184.6M
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 |
|---|---|---|---|---|---|
| 2523900000 | Hydraulic Cements, NESOI | $9.8M | 0.13% | 1.34% | $13K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2523900000 | Hydraulic Cements, NESOI | $4.4M |
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.
ImportsExports
Imports
$10.4MYoY · Pro
Exports
$3.2MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Canada and Mexico together supply 99% of it.
customs district
destination
entry
rate provision · imports
99.0% enters free of duty; the effective duty rate is 0.06%.