U.S. imports of Zinc Powders and Flakes (HS 790390) totaled $3.1M in August 2026, imported from 10 countries.
Importers of Zinc Powders and Flakes paid $3K in duties in August 2026, an average duty rate of 0.09% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Zinc Powders and Flakes imports of $3.1M in August 2026 ran 19% below the year-to-date monthly average of $3.8M.
Last updated: August 2026 dataZinc powders and flakes serve as functional pigments in zinc-rich coatings, as reactive agents in chemical processes, and as components in specialty lubricants and conductive inks. The US schedule separates powders (7903903000) from flakes (7903906000) within this heading, with flake morphology being particularly valued in lamellar coating systems for fasteners and automotive parts. Belgium and Germany lead US imports, consistent with Europe's strong position in specialty zinc chemicals and coating-grade materials.
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27 import shipments a month
The distinction reflects meaningful commercial and functional differences: zinc flakes (7903906000) have a platelet geometry that creates overlapping, barrier-type corrosion protection in lamellar coatings, while zinc powders (7903903000) are more spherical and used in galvanic-type zinc-rich primers and chemical applications. Correct subheading selection requires the supplier to specify particle morphology in the product documentation.
Zinc flakes are primarily consumed in the automotive and construction fastener industries, where lamellar zinc-aluminum coating systems (applied by dip-spin or spray processes) provide corrosion protection without hydrogen embrittlement — a key advantage over electroplating for high-strength steel fasteners. Demand tracks closely with automotive production volumes and infrastructure spending.
ImportsExports
Imports
$3.1MYoY · free account
Exports
$54KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $37.5M of Zinc Powders and Flakes and exported $2.1M.
Through August 2026. Source: U.S. Census Bureau.
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Subheading 1 of 2 in heading 7903
Subheading 790390 · $3.1M of $3.1M
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 |
|---|---|---|---|---|---|
| 7903903000 | Zinc Powders | $3.1M | 0.09% | 96.32% | $3K |
| 7903906000 | Zinc Flakes | — | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7903900000 | Zinc Powders and Flakes | $54K |
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.
Imports · August 2026
origin
Germany and Belgium together supply 86% of it.
customs district
destination
entry
rate provision · imports
3.7% enters free of duty; duty collected equals 0.09% of imports for consumption.