Customs delays and unexpected tariff surcharges usually happen because of a single mistake: using the wrong HS Code. For a procurement manager, classifying 99.99% purity copper is different from classifying standard alloys like brass or bronze. Because C10100 is "Refined Copper," it falls under specific sub-headings in Chapter 74 of the Harmonized System. Using the incorrect code doesn't just delay your shipment-it can lead to heavy fines for misdeclaration. This guide identifies the correct codes for your C10100 Oxygen-Free Electronic copper orders to ensure smooth global logistics.
Which HS Code should I use for C10100 plates and bars?
In international trade, the first six digits of an HS code are globally standardized, while the remaining digits vary by country (e.g., HTSUS in the US or TARIC in Europe). As a specialized C10100 copper plate supplier, GNEE METAL uses the "Refined Copper" category (7403, 7407, 7409) rather than the "Copper Alloy" category (7403.21).
If you are buying OFE copper sheet standard sizes or OFE copper sheet cut to size, your documentation must reflect that the material is unalloyed. This distinction is vital for maintaining the 101% IACS value in your customs declaration, as refined copper often enjoys lower duty rates than alloyed products.
Global HS Code Reference for C10100 Products
| Product Format | Global HS Code (First 6 Digits) | Customs Category |
| C10100 copper plate supplier (Plate/Sheet) | 7409.11 | Refined Copper, Plates/Sheets, in coils |
| OFE copper sheet cut to size (Flat) | 7409.19 | Refined Copper, Plates/Sheets, not in coils |
| C10100 copper round bar / Square Rod | 7407.10 | Refined Copper, Bars, Rods, and Profiles |
| OFE copper tubing manufacturer (Tube/Pipe) | 7411.10 | Refined Copper, Tubes and Pipes |
| OFE copper foil roll / Strip | 7410.11 | Refined Copper, Foil (not backed) |
| C10100 bare copper wire | 7408.11 / 7408.19 | Refined Copper, Wire (Diameter based) |
Why does the "Refined Copper" status matter for tariffs?
Customs agents look at the copper content. Because C10100 thick copper board and extruded OFE copper bar are 99.99% pure, they are classified as "Refined." Many countries have trade agreements that provide duty-free access for refined copper but impose high tariffs on alloys (like brass) to protect local foundries.
Falling into a sourcing trap by using a generic "Copper" code (7403) can trigger an audit. If the agent suspects the material contains zinc or lead, they will halt the shipment for a lab test. Always ensure your MTR (Mill Test Report) clearly states the Max 5ppm oxygen limit and the ASTM B170 Grade 1 compliance to prove it is refined electronic grade.
Do you need a specific HTS or TARIC code for your destination country?
Does the HS Code change for CNC machined C10100 parts?
Yes. Once the copper is machined into a specific component, it may no longer fall under Chapter 74. For example, if we provide Custom CNC Machined Parts like an 800V EV busbar or a UHV flange, the code might shift to 8536 (Electrical apparatus for switching) or 8485 (Machinery parts).
An OFE copper wire manufacturer shipping 4N pure copper wire will use 7408, but if that wire is insulated, it moves to 8544. Misclassifying finished parts as "raw material" is a major compliance risk that GNEE METAL helps you avoid through precise documentation of the OFE copper rod tensile strength and final use case.
Compliance Checklist for International Shipments
| Document | Required Info | Reason |
| Mill Test Report (MTR) | 99.99% Cu / 5ppm Oxygen | Proves "Refined Copper" status |
| Commercial Invoice | Correct HS Code (10 Digits) | Determines duty and tax rates |
| Certificate of Origin | Manufacturing Country | Essential for Free Trade Agreements |
| Packing List | C10100 plate flatness tolerance | Prevents shipping damage disputes |
FAQ
1. What is the US HTS code for C10100 copper plates?
For C10100 Plate over 5mm thick, the US HTS code is typically 7409.11.0050. Always verify this against the current year's HTS schedule as sub-headings can change.
2. Is there an "Environmental Duty" on C10100 products?
Some regions impose carbon taxes or environmental levies. However, because C10100 Oxygen-Free Electronic copper is 100% recyclable and often produced from high-grade scrap, it may qualify for green-tech exemptions in certain EV and renewable energy projects.
3. Why did my OFE copper tubing manufacturer use a different code for capillary tubes?
An ASTM F68 capillary tube or a high vacuum copper pipe might be classified under 7411.10.10 if the wall thickness is extremely thin. Small-diameter C10100 Seamless Tube has its own sub-codes in many regional tariffs.
4. How do I avoid "Conflict Mineral" audits when buying C10100?
As an OFE copper wire manufacturer, we provide "Conflict-Free" declarations. Since C10100 is refined from pure cathode, it is easy to trace. This documentation is required for the AVL (Approved Vendor List) of major tech companies.
5. Does the C10100 strip slitting process change the HS code?
No. Whether you buy OFE copper strip standard sizes or OFE copper strip in coil, it remains under 7409. The slitting is a processing service and doesn't change the material's tariff classification.
6. Why is the RRR value mentioned on my shipping documents?
For international physics research, the RRR value proves the material is "Cryogenic Grade." While not an HS code requirement, it helps customs understand that the material is a high-value scientific component, not a low-grade commodity.
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GNEE METAL Product Range
| Product Type | Shapes Available | Common Grades | Diameter/Thickness Range | Length/Width Range | Applications |
|---|---|---|---|---|---|
| Copper Tubes | Round, Square, Rectangular, Coiled | C10100, C10200, C11000, C12200, C12000 | OD: 0.5mm - 300mm Wall: 0.1mm - 20mm | Up to 6000mm or custom | HVAC, Plumbing, Heat Exchangers, Refrigeration, Hydraulic Lines |
| Copper Plates & Sheets | Flat Sheets, Perforated, Embossed, Tread Plate | C10100, C11000, C12200, C23000, C26000 | Thickness: 0.1mm - 200mm | Width: Up to 2500mm Length: Up to 6000mm | Electrical Busbars, Roofing, Cladding, Gaskets, Transformers |
| Copper Bars & Rods | Round Bar, Square Bar, Hexagonal Bar, Flat Bar | C10100, C11000, C14500, C17200, C18200 | Diameter: 1mm - 300mm | Length: 1000mm - 4000mm | Machined Components, Electrical Contacts, Busbars, Fasteners |
| Copper Wires | Round Wire, Flat Wire, Square Wire, Stranded, Braided | C11000, C11600, C17200, C17510 | Diameter: 0.05mm - 12mm | Coil weights: 1kg - 500kg | Electrical Wiring, Cables, Springs, Mesh, Welding Wire |
| Copper Strips & Coils | Thin Strip, Foil, Slit Coil, Profile Strip | C11000, C12200, C19400, C26000, C26800 | Thickness: 0.03mm - 5mm | Width: 2mm - 1000mm Coil ID: 300mm - 600mm | Transformers, Radiators, Shielding, Terminals, Connectors |
About Our Factory
We operate a full range of production lines including extrusion presses, cold drawing benches, high-speed rolling mills, slitting lines, and precision CNC machining centers, enabling us to produce copper tubes, plates, bars, wires, and strips entirely in-house. For quality assurance, we maintain a dedicated inspection laboratory equipped with spectral analyzers, universal testing machines, hardness testers, surface roughness testers, and optical measuring instruments. Every batch is tested for chemical composition, mechanical properties, and dimensional accuracy before shipment. Our production capacity reaches 500+ tons per month, and we hold ISO 9001:2015 certification with full traceability from raw material to finished product. Whether you need standard mill stock or custom-processed components, we deliver precision copper products with short lead times and complete material certification.
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