Loading...
SITCSection 5
U.S. imports of prepared additives for cements, mortars & concretes (SITC 59897) totaled $7.3M in April 2026, traded with 26 countries.
Importers of Prepared Additives for Cements, Mortars & Concretes paid $769K in duties in April 2026 — an effective duty rate of 18% on $4.2M in dutiable value, based on actual customs collections rather than the published tariff schedule. Prepared Additives for Cements, Mortars & Concretes imports of $7.3M in April 2026 ran 15% above the year-to-date monthly average of $6.4M.
Last updated: April 2026 dataFormulated admixtures—including plasticizers, accelerators, retarders, air-entraining agents, and shrinkage reducers—are performance-critical inputs for the construction industry, allowing concrete producers to tailor workability, set time, and durability to project specifications. Unlike raw mineral components, these prepared additives are chemical formulations that may contain surfactants or polymers subject to EPA TSCA inventory requirements. Demand tracks closely with infrastructure and commercial construction cycles, making this a volume-sensitive category for chemical distributors supplying ready-mix and precast concrete operations.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Prepared admixtures containing chemical substances not listed on the TSCA Chemical Substance Inventory may require pre-manufacture notification before import. Importers must certify TSCA compliance or non-applicability at entry; formulations containing novel polymers or surfactants warrant particular scrutiny. A licensed customs broker or TSCA consultant should review the product's Safety Data Sheet against the TSCA inventory prior to shipment.
Accelerators shorten concrete set time and are used in cold-weather pours or rapid-turnaround precast production, while retarders extend workability for large pours or hot-weather conditions. Although both fall within this SITC heading, importers and buyers should specify the admixture type in purchase contracts and technical data sheets, as substitution between types can cause significant structural performance issues.
Supplier Network
Get discovered by U.S. importers searching for HS 59897 — Prepared Additives for Cements, Mortars & Concretes. Be the first supplier listed.
Monthly import values over time