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SITCSection 6
U.S. imports of prefabricated structural components of cement, concrete or artificial stone (SITC 66333) totaled $4.6M in April 2026, traded with 19 countries.
Importers of Prefabricated Structural Components of Cement, Concrete or Artificial Stone paid $31K in duties in April 2026 — an effective duty rate of 11% on $280K in dutiable value, based on actual customs collections rather than the published tariff schedule. Prefabricated Structural Components of Cement, Concrete or Artificial Stone imports of $4.6M in April 2026 ran 45% above the year-to-date monthly average of $3.2M.
Last updated: April 2026 dataFactory-cast structural elements — including precast concrete beams, columns, wall panels, bridge girders, and tunnel segments — are engineered to precise load-bearing specifications and play a critical role in accelerated construction timelines for infrastructure and commercial building projects. Unlike masonry units, these components are designed as finished structural members, often incorporating reinforcing steel, prestressing tendons, or embedded hardware. The high unit weight of precast concrete makes ocean freight economics a significant constraint, so imports tend to originate from nearby trading partners or serve highly specialized applications not available domestically.
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While CBP does not require engineering certification at the border, precast structural components must comply with applicable US building codes (such as ACI 318 for concrete structures) and local jurisdiction requirements before installation. Buyers should confirm that foreign manufacturers can provide mix design records, compressive strength test reports, and reinforcement certifications to satisfy project engineers and building inspectors.
Reinforced and unreinforced precast structural components both fall within this heading — the SITC description explicitly covers these articles 'whether or not reinforced.' However, the HTS tariff schedule may distinguish between reinforced and unreinforced articles at the 10-digit level, so importers should verify the specific HTS subheading applicable to their product's reinforcement configuration with a licensed customs broker.
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Monthly import values over time