U.S. imports of Cement Clinkers (HS 252310) totaled $6.5M in August 2026, imported from 7 countries.
Importers of Cement Clinkers paid $440K in duties in August 2026, an average duty rate of 6.73% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Cement Clinkers imports of $6.5M in August 2026 ran 22% below the year-to-date monthly average of $8.3M.
Last updated: August 2026 dataCement clinkers — the nodular intermediate produced by kiln-firing limestone and other raw materials — are traded globally as a bulk commodity that domestic grinding mills process into finished cement, allowing importers to bypass clinker production capacity constraints. Canada and Turkey are the leading US suppliers, with France, Vietnam, and Croatia also contributing. Classified under tariff line 2523100000, clinker imports are sensitive to domestic cement industry capacity utilization and have historically attracted trade-remedy scrutiny in various markets.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
5 import shipments a month
Importers with domestic grinding capacity may find it more economical to import clinker in bulk and grind it locally, reducing shipping costs (clinker is denser and easier to handle than finished cement powder) and allowing blending with locally sourced supplementary cementitious materials like fly ash or slag to meet specific product specifications.
Clinker (2523100000) is the unground, nodular intermediate — it has not been interground with gypsum or other additives. Finished Portland or hydraulic cements are classified under subheadings 2523.21 through 2523.90. Importers should retain kiln production records or mill certificates confirming the product has not been ground to finished cement specification.
Subheading 4 of 5 in heading 2523
Subheading 252310 · $6.5M of $172.1M
Trade Directory
List your company under HS 252310 — Cement Clinkers, so the companies trading it can find you. Be the first supplier listed.
ImportsExports
Imports
$6.5MYoY · free account
Exports
$33KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $97.9M of Cement Clinkers and exported $2.0M.
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 |
|---|---|---|---|---|---|
| 2523100000 | Cement Clinkers | $6.5M | 6.73% | 53.88% | $440K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2523100000 | Cement Clinkers | $33K |
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
Turkey and Canada together supply 100% of it. Turkey pays 12.5% duty; Canada 0.0%.
customs district
destination
entry
rate provision · imports
46.1% enters free of duty; duty collected equals 6.73% of imports for consumption.