SITCSection 2
U.S. imports of silica sands and quartz sands (SITC 27331) totaled $2.0M in April 2026, traded with 24 countries.
Importers of Silica Sands and Quartz Sands paid $99K in duties in April 2026 — an effective duty rate of 9.1% on $1.1M in dutiable value, based on actual customs collections rather than the published tariff schedule. Silica Sands and Quartz Sands imports of $2.0M in April 2026 ran 36% above the year-to-date monthly average of $1.5M.
Last updated: April 2026 dataSilica and quartz sands are foundational industrial minerals used in glass manufacturing, hydraulic fracturing (frac sand), foundry casting, filtration systems, and semiconductor-grade silicon production — with purity and grain-size specifications varying sharply by end use. High-purity frac sand and glass-grade silica command premium pricing and distinct supply chains compared with lower-grade construction silica. Importers should be aware that certain silica sand operations and products may be subject to OSHA crystalline silica exposure regulations, which can affect handling and documentation requirements at the port of entry.
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Both fall under the same SITC heading, but frac sand is graded primarily by crush resistance (K-value), roundness, and sphericity per API standards, while glass-grade silica requires very high SiO₂ purity (often above 99%) and tight iron-oxide limits. Foundry sand has its own AFS grain-fineness specifications. These distinctions affect pricing and supplier qualification but do not create separate tariff lines at the SITC level.
Silica sand is a bulk mineral commodity not currently subject to major Section 301 or antidumping orders in the US, but trade-remedy landscapes change. Importers sourcing from specific origins should verify current CBP guidance and any applicable country-of-origin requirements, particularly for high-purity or processed grades that may be classified differently.
Monthly import values over time
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