U.S. exports of Natural Silica Sands and Quartz Sands (HS 250510) totaled $33.3M in August 2026.
Importers of Natural Silica Sands and Quartz Sands paid $210K in duties in August 2026, an average duty rate of 8.12% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Natural Silica Sands and Quartz Sands imports of $2.6M in August 2026 ran 43% above the year-to-date monthly average of $1.8M.
Last updated: August 2026 dataPurity grade is the defining classification variable for natural silica and quartz sands: the US schedule distinguishes sand with silica content of 95% or greater and iron oxide below 0.6% (2505101000) — a specification critical for glassmaking and semiconductor-grade applications — from lower-purity material classified as NESOI (2505105000). Canada is the leading supplier to the US market, reflecting geographic proximity and well-developed industrial mining infrastructure. These sands are foundational inputs for flat glass, foundry molds, hydraulic fracturing, and water filtration systems.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
103 import shipments a month
Sand with silica content of 95% or more by weight and iron oxide content below 0.6% by weight is classified under 2505101000. Material that does not meet both thresholds falls under the NESOI line 2505105000. Laboratory certificates of analysis documenting these parameters are essential for correct classification.
No broad Section 301 or antidumping orders are currently in place specifically targeting natural silica sands as a category, but importers should verify current CBP guidance and any applicable Section 232 or other measures with a licensed customs broker, as trade-remedy landscapes can change.
Subheading 1 of 2 in heading 2505
Subheading 250510 · $33.3M of $34.9M
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 |
|---|---|---|---|---|---|
| 2505101000 | Silica/Quartz Sand, Wt Gt=95%silica, Lt=0.6%fe Oxide | $1.9M | 9.75% | 51.88% | $189K |
| 2505105000 | Silica Sands & Quartz Sands, Natural, NESOI | $654K | 3.27% | 37.84% | $21K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2505100000 | Natural Silica Sands and Quartz Sands | $33.3M |
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.
Exports · August 2026
destination
Canada and Japan together take 69% of it.
customs district
origin
entry
rate provision · imports
51.7% enters free of duty; duty collected equals 8.12% of imports for consumption.
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ImportsExports
Imports
$2.6MYoY · free account
Exports
$33.3MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $22.2M of Natural Silica Sands and Quartz Sands and exported $447.4M.
Through August 2026. Source: U.S. Census Bureau.