Oxygen-Free High Conductivity Copper Billets
Oxygen-free high conductivity (OFHC) copper billets feature ultra-low oxygen content (<10 ppm) for superior electrical performance, used for magnet wire. They are refined copper (≥99.95% Cu) in unwrought billet form, classified under tariff item 7403.13.00 as billets of refined copper.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
PGA flags
No agency flag on this HTS number in the CBSA Single Window matching criteria.
CBSA Single Window matching criteria, unknown
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the billets are alloyed with elements such as silver or cadmium
Alloyed copper billets are not refined copper and fall under copper alloys.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Document the oxygen content and copper purity with a mill certificate to support the refined copper classification
• Since OFHC billets are often used in specialized applications, ensure the end-use does not affect tariff classification
• Check for any applicable anti-dumping or countervailing duties on copper products
Related Products under Tariff item 7403.13.00
Continuous Cast Copper Billets for Rod Extrusion
Continuous cast refined copper billets, typically 200-300mm in diameter, are unwrought products of refined copper (at least 99.85% copper by weight) used for hot extrusion into copper rods and subsequent wire drawing. They fall under tariff item 7403.13.00 as billets of refined copper, not yet worked after casting.
Electrolytic Tough Pitch Copper Billets
Electrolytic tough pitch (ETP) copper billets are refined copper (99.9% Cu with controlled oxygen) cast into billet form for wire rod production. As unwrought refined copper in billet form, they are classified under tariff item 7403.13.00, provided they are not subsequently worked.
High Purity Refined Copper Billets
High purity refined copper billets (99.99% Cu) are cylindrical semi-finished products used primarily for extrusion into rods and wires. They are unwrought refined copper in billet form, meeting the definition of refined copper under chapter note 1(a), and are classified under tariff item 7403.13.00.
Premium Refined Copper Billets 8-Inch Diameter
Premium refined copper billets of 8-inch (200mm) diameter with a surface free of cracks are used for high-quality rod production in automotive wiring harnesses. These unwrought refined copper billets meet the purity requirements for refined copper and are classified under tariff item 7403.13.00.