U.S. imports of Nonrefractory Mortars and Concretes (HS 382450) totaled $6.5M in August 2026, imported from 29 countries.
Importers of Nonrefractory Mortars and Concretes paid $88K in duties in August 2026, an average duty rate of 1.35% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataReady-to-use and dry-mix nonrefractory mortars and concretes — formulations that do not withstand high-temperature service — are traded under this heading, covering products from standard masonry mortars to specialty repair concretes. The US schedule distinguishes wet formulations (3824500010) from all other forms (3824500050), a split that reflects differences in packaging, shelf life, and transport logistics. Canada and Mexico are the dominant suppliers, driven by cross-border construction project demand and the economics of shipping heavy, low-value-density materials over short distances.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
705 import shipments a month
Wet mortars and concretes (3824500010) are pre-mixed with water and ready for immediate application, while the NESOI line (3824500050) covers dry-blend powders, bagged mixes, and other non-wet forms. The physical state at the time of importation — not the intended end use — determines which 10-digit line applies.
Nonrefractory mortars and concretes are heavy and relatively low in value per unit weight, making long-haul ocean freight economically impractical for most grades. Cross-border truck shipments from Canada and Mexico keep landed costs competitive, so supply geography for this heading is heavily shaped by transport economics rather than raw material availability.
ImportsExports
Imports
$6.5MYoY · free account
Exports
$7.1MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $76.2M of Nonrefractory Mortars and Concretes and exported $78.6M.
Through August 2026. Source: U.S. Census Bureau.
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Subheading 4 of 17 in heading 3824
Subheading 382450 · $6.5M of $650.9M
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 |
|---|---|---|---|---|---|
| 3824500050 | Nonrefactory Mortars and Conretes Except Wet | $6.4M | 1.19% | 10.21% | $76K |
| 3824500010 | Wet Nonrefractory Mortars and Concretes | $134K | 8.63% | 84.66% | $12K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3824500050 | Nonrefactory Mortars and Conretes Except Wet | $6.7M |
| 3824500010 | Wet Nonrefractory Mortars and Concretes | $393K |
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 88% of it. Germany pays 10.0% duty; Canada 0.0%.
customs district
destination
entry
rate provision · imports
88.3% enters free of duty; duty collected equals 1.35% of imports for consumption.