U.S. imports of Hydraulic Cements (Other) (HS 252390) totaled $9.6M in August 2026, imported from 9 countries.
Importers of Hydraulic Cements (Other) paid $5K in duties in August 2026, an average duty rate of 0.05% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Hydraulic Cements (Other) imports of $9.6M in August 2026 ran 17% above the year-to-date monthly average of $8.2M.
Last updated: August 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 import shipments a month
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.
Subheading 3 of 5 in heading 2523
Subheading 252390 · $9.6M of $172.1M
ImportsExports
Imports
$9.6MYoY · free account
Exports
$5.2MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $111.3M of Hydraulic Cements (Other) and exported $32.9M.
Through August 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2523900000 | Hydraulic Cements, NESOI | $9.6M | 0.05% | 0.67% | $5K |
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 | $5.2M |
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.
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Imports · August 2026
origin
Canada and Mexico together supply 99% of it. France pays 10.0% duty; Mexico 0.0%.
customs district
destination
entry
rate provision · imports
99.3% enters free of duty; duty collected equals 0.05% of imports for consumption.