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HSChapter 79
U.S. imports of high-purity unwrought zinc (99.99% or more) (HS 790111) totaled $88.2M in April 2026, traded with 5 countries.
High-Purity Unwrought Zinc (99.99% or More) imports of $88.2M in April 2026 ran 20% below the year-to-date monthly average of $109.8M.
Last updated: April 2026 dataClassified under a single 10-digit line (7901110000), this grade of unwrought zinc — commonly called 'special high grade' (SHG) in the trade — meets the stringent purity threshold required for galvanizing, die casting, and brass production where trace impurities are unacceptable. Canada and Mexico are the dominant US suppliers, with Peru and Australia also contributing meaningfully to import volumes. Importers should note that unwrought zinc from certain origins may be subject to antidumping or countervailing duty orders; verifying current order scope before entry is essential.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
The 99.99% or greater zinc-by-weight threshold is the decisive classification criterion. Metal that meets this purity level falls under 790111, while zinc of lower purity — including casting-grade material — is classified under 790112 regardless of physical form.
Antidumping and countervailing duty orders have historically applied to unwrought zinc from select countries. Importers should check current CBP and Commerce Department order scopes before filing entry, as applicability depends on both origin and purity grade.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $56.5M | $777K | -$55.7M |
| PERU | $20.1M | $310K | -$19.8M |
| MEXICO | $11.6M | $3.2M | -$8.5M |
| INDIA | -- | $54K | +$54K |
| KOREA, SOUTH | -- | $14K | +$14K |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % |
|---|---|---|---|
| 7901110000 | ZINC UNWRT NT ALY CNT WGT AT LST 99.99 PERCNT ZINC | $88.2M | -- |
ZINC UNWRT NT ALY CNT WGT AT LST 99.99 PERCNT ZINC
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7901110000 | ZINC UNWRT NT ALY CNT WGT AT LST 99.99 PERCNT ZINC | $4.3M |
ZINC UNWRT NT ALY CNT WGT AT LST 99.99 PERCNT ZINC
1.1M kg
| State | Imports | Exports | Balance |
|---|---|---|---|
| Louisiana | $12.9M | $2.2M | -$10.7M |
| Connecticut | $8.7M | -- | -$8.7M |
| Ohio | $6.6M | -- | -$6.6M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| BOUNDARY, WA | $18.3M | -- | -$18.3M |
| DETROIT, MI | $18.0M | $18K | -$17.9M |
| NEW ORLEANS, LA | $11.9M | $14K | -$11.8M |