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HSChapter 79
U.S. imports of unwrought zinc, unalloyed, 99.99% purity or higher (HS 790111) totaled $71.6M in July 2026, traded with 5 countries.
Unwrought Zinc, Unalloyed, 99.99% Purity or Higher imports of $71.6M in July 2026 ran 26% below the year-to-date monthly average of $97.1M.
Last updated: July 2026 dataHigh-purity unwrought zinc at 99.99% or greater zinc content by weight occupies a distinct tier above standard-grade refined zinc, commanding premium pricing in galvanizing, die-casting alloy, and specialty chemical applications where trace impurities are unacceptable. The single US tariff line under this heading (7901110000) is subject to Section 232 national-security tariff considerations that affect cost modeling for downstream manufacturers. Canada and Mexico are the leading suppliers, with Peru and Australia also contributing meaningfully to US import volumes, reflecting the global distribution of zinc smelting capacity. Importers should monitor quota and tariff-rate developments closely, as the high-purity segment is sensitive to shifts in domestic smelter output.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
395 shipments/mo
HTS heading 790111 specifically covers unalloyed unwrought zinc containing 99.99% or more zinc by weight. Standard refined zinc at lower purity thresholds (e.g., 99.9%) falls under a separate subheading (790112), so laboratory certification of purity is essential to confirm the correct classification and applicable duty rate.
Unwrought zinc imports have been subject to Section 232 national-security tariff proceedings. Importers should verify the current status of any applicable Section 232 measures and whether exclusions are available for specific origins or product specifications before finalizing landed-cost calculations.
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ImportsExports
Imports
$71.6MYoY · Pro
Exports
$3.3MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share |
|---|---|---|---|---|
| 7901110000 | Zinc Unwrt Nt Aly Cnt Wgt at Lst 99.99 Percnt Zinc | $71.6M | 0.00% | 0.00% |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7901110000 | Zinc Unwrt Nt Aly Cnt Wgt at Lst 99.99 Percnt Zinc | $3.3M |
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.
Subheading 2 of 3 in heading 7901
Subheading 790111 · $71.6M of $148.5M
Imports · July 2026
origin
Canada and Mexico together supply 91% of it.
customs district
destination
entry
rate provision · imports
100.0% enters free of duty; the effective duty rate is 0.00%.