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HSChapter 45
U.S. imports of natural cork, raw or simply prepared (HS 450110) totaled $71K in April 2026, traded with 4 countries.
Importers of Natural Cork, Raw or Simply Prepared paid $5K in duties in April 2026 — an effective duty rate of 7.0% on $71K in dutiable value, based on actual customs collections rather than the published tariff schedule. Natural Cork, Raw or Simply Prepared imports of $71K in April 2026 ran 17% below the year-to-date monthly average of $86K.
Last updated: April 2026 dataRaw and minimally processed natural cork — harvested primarily from the bark of Quercus suber (cork oak) — enters the US under a single 10-digit line (4501100000) and serves as the upstream input for the wine stopper, insulation, and flooring industries. Portugal and Spain together account for the overwhelming majority of global cork oak forests and dominate world supply of raw cork, making this a geographically concentrated commodity with limited origin diversification. The 'simply prepared' threshold is a key classification boundary: cork that has been debacked, squared, or cut into blanks moves to heading 4502, while crushed or granulated cork shifts to heading 4501.90.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Heading 4501 covers cork in its natural state or after minimal operations such as cleaning, trimming, or boiling to improve elasticity — processes that do not alter the basic form of the bark slabs. Once cork is debacked (outer bark removed), roughly squared, or cut into rectangular blocks, plates, or sharp-edged blanks for stoppers, it crosses into heading 4502. The distinction is important because the two headings carry different duty rates.
Raw natural cork is a plant product and is subject to USDA APHIS phytosanitary requirements. Shipments may require a phytosanitary certificate from the exporting country's national plant protection organization, and APHIS may conduct inspection at the port of entry. Importers should confirm current APHIS entry requirements for cork bark from the specific country of origin before shipment.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| PORTUGAL | $71K | -- | -$71K |
| CHINA | -- | $48K | +$48K |
| NEW ZEALAND | -- | $37K | +$37K |
| PAKISTAN | -- | $24K | +$24K |
| KOREA, SOUTH | -- | $13K | +$13K |
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 4501100000 | NATURAL CORK, RAW OR SIMPLY PREPARED | $71K | 7.03% | $5K |
NATURAL CORK, RAW OR SIMPLY PREPARED
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 4501100000 | NATURAL CORK, RAW OR SIMPLY PREPARED | $158K |
NATURAL CORK, RAW OR SIMPLY PREPARED
8.7K kg
CORKS AND STOPPERS OF NATURAL CORK
HS 450310
BLOCKS/PLATES/SHEETS/TILE/DISKS ETC OF AGGLOM CORK
HS 450410
AGGLOMERATED CORK & ARTICLES OF AGGLOM CORK, NESOI
HS 450490
WASTE CORK; CRUSHED, GRANULATED OR GROUND CORK
HS 450190
NATURAL CORK DEBACK/RGH SQD IN BLKS/SHEETS/STRIPS
HS 450200
ARTICLES OF NATURAL CORK, NESOI
HS 450390
| State | Imports | Exports | Balance |
|---|---|---|---|
| Wisconsin | -- | $63K | +$63K |
| California | $49K | -- | -$49K |
| Indiana | -- | $48K | +$48K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LOS ANGELES, CA | $49K | $17K | -$32K |
| CLEVELAND, OH | -- | $48K | +$48K |
| LOS ANGELES INTERNATIONAL AIRPORT, CA | -- | $37K | +$37K |