Agriculture›
Apparel and fashion accessories›
Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›
Agriculture›
Apparel and fashion accessories›
Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›

6N copper pellets from Cowin Semiconductor Materials are refined to 99.9999 percent purity (Cu 99.9999%), with the source listing also citing 99.999999 percent purity. These custom-sized pellets serve semiconductor fabrication, sputtering target production, and high-end electrical component manufacturing where trace impurities compromise device performance. The material originates from Ningbo, Zhejiang Province, and is vacuum-packed or sealed in drums to prevent oxidation and atmospheric contamination during transit.
The pellets conform to 6N grade (six-nines) copper standards, meaning total metallic impurities are controlled below 1 ppm. Typical applications demand strict limits on sulfur, oxygen, and transition metals that would alter electrical resistivity or cause voids in thin-film deposition. Cowin offers customized sizing rather than fixed diameters, allowing buyers to match feedstock dimensions to their vacuum melting or pressing equipment. Standard industry practice requires certificates of analysis for each lot, detailing glow discharge mass spectrometry (GDMS) or inductively coupled plasma (ICP) results for individual impurity elements.
Buyers for this product include semiconductor wafer foundries, thin-film solar cell manufacturers, and producers of high-purity copper alloys for aerospace connectors. The supplier's Harbor trust tier indicates basic verification, though the zero percent response rate and zero average response hours mean live communication should be tested before committing to orders. Importers typically request Incoterms clarification, lead time confirmation, and lot-specific assay reports, none of which are specified in the available data.
| Purity | 99.9999% Cu min (6N); source also cites 99.999999% (confirm with supplier) |
| Grade | 6N (six-nines) ultra-high-purity copper |
| Form | Pellets (customized dimensions per order) |
| Primary Application | Sputtering targets, semiconductor interconnects, high-purity alloys |
| Typical Packaging | Vacuum-sealed containers or sealed drums (standard for 6N copper to prevent oxidation) |
| Typical Impurity Limit | Total metallic impurities <1 ppm (typical for 6N grade) |
| Typical Analytical Method | GDMS or ICP-MS per lot (standard certification for electronics-grade copper) |
| Origin | Ningbo, Zhejiang Province, China |
| Storage Condition | Inert atmosphere or vacuum (standard for ultra-high-purity metals) |
| Response Rate | 0.00% (buyer should confirm supplier availability directly) |
Cowin Semiconductor Materials (Ningbo) Co., Ltd. operates from No.22 Boxuan Road in Hangzhou Bay, Ningbo City, Zhejiang Province, postal code 315336. The company holds a Harbor trust tier on the marketplace, which represents entry-level verification rather than audited certification. No response data exists for this supplier, with both response rate and average response hours showing zero, so buyers should initiate contact to assess communication reliability before placing orders.
The listing presents Cowin as a source of certified 6N copper pellets for international trade, though no specific certifications, production capacity, or client references are provided. The supplier's product focus centers on ultra-high-purity copper materials for electronics and advanced manufacturing sectors. Buyers should verify whether Cowin provides lot traceability, material safety data sheets, and conflict mineral statements, as these are standard requirements for semiconductor supply chains but are not confirmed in the available profile.
6N Copper Pellets are high-purity refined copper with a minimum purity of 99.9999%, making them ideal for electronics, semiconductor, and advanced manufacturing applications. These custom-sized pellets are sourced from certified suppliers and comply with international standards for chemical composition and impurity control. Widely traded internationally for use in sputtering targets, alloy production, and high-end electrical components, 6N copper pellets are typically packed in sealed drums or vacuum-packed containers to preserve purity during transit and storage.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Before ordering 6N copper pellets from Cowin Semiconductor Materials, verify the exact purity specification that applies to your lot, as the source contains conflicting figures (99.9999% versus 99.999999%). Request a current certificate of analysis with GDMS or ICP-MS data, and confirm that the analytical laboratory is accredited. Check that the pellet dimensions and tolerances match your vacuum deposition equipment specifications, and ask for a sample lot for qualification testing if your process requires semiconductor-grade consistency.
Confirm shipping terms and Incoterms with Cowin, including whether FOB Ningbo or CIF delivery is available. The supplier shows zero response data, so establish reliable communication channels and backup contacts before transferring funds. Clarify payment terms, typically 30% advance with letter of credit for new supplier relationships in ultra-high-purity metals. Ask about lead time from order confirmation to shipment, and whether Cowin maintains inventory or produces to order, as 6N copper often requires scheduled production runs.
Upon receipt, inspect packaging integrity for vacuum or inert atmosphere maintenance, and check for any discoloration indicating oxidation. Send representative samples to your own analytical laboratory for checking against the supplier's certificate, focusing on oxygen, sulfur, and transition metal content. Verify that drum labels match lot numbers on certificates. For ongoing supply, negotiate incoming inspection protocols and agree on corrective action procedures for out-of-specification material, as trace impurity deviations in 6N copper can render entire semiconductor batches defective.
Active buying requirements from importers looking for Similar products
Compare alternatives, find similar products and connect with verified suppliers
When sourcing 6n Copper Pellets for your business, securing the right balance of quality and cost is essential. Cowin Semiconductor Materials ( Ningbo) Co., Ltd., a verified supplier based in China, offers this product with key specifications including 6N (Six Nines) High Purity Copper, Cu 99.9999% minimum; impurity levels in ppm controlled per buyer specification, and Customized pellet size, typically 3-10mm diameter or per buyer requirement. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $90/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7403.11, making it a staple in the Copper Ore sector with strong demand from importing countries worldwide.
Importing 6n Copper Pellets requires careful attention to shipping logistics, customs compliance, and secure payment terms. Cowin Semiconductor Materials ( Ningbo) Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 7403.11 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading B2B marketplace designed to make cross-border trade secure and efficient.
Finding trustworthy partners is the foundation of successful importing. The supplier of this 6n Copper Pellets has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Copper Ore category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.
Importing 6n Copper Pellets requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 7403.11 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
The current listed wholesale price for 6n Copper Pellets from Cowin Semiconductor Materials ( Ningbo) Co., Ltd. is $90/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Cowin Semiconductor Materials ( Ningbo) Co., Ltd. through EximNext.
The supplier, Cowin Semiconductor Materials ( Ningbo) Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for 6n Copper Pellets. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
For international shipping and customs clearance, 6n Copper Pellets is classified under HS Code 7403.11. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
To import 6n Copper Pellets from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Cowin Semiconductor Materials ( Ningbo) Co., Ltd.. Ensure you have the necessary import licenses for Copper Ore products in your destination country.
Yes, Cowin Semiconductor Materials ( Ningbo) Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
The key specifications for 6n Copper Pellets supplied by Cowin Semiconductor Materials ( Ningbo) Co., Ltd. include 6N (Six Nines) High Purity Copper, Cu 99.9999% minimum; impurity levels in ppm controlled per buyer specification, and Customized pellet size, typically 3-10mm diameter or per buyer requirement. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
Cowin Semiconductor Materials ( Ningbo) Co., Ltd. offers 6n Copper Pellets with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
6n Copper Pellets is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Cowin Semiconductor Materials ( Ningbo) Co., Ltd. through our platform.
Cowin Semiconductor Materials ( Ningbo) Co., Ltd. maintains international quality certifications. These ensure that the 6n Copper Pellets meets international quality, safety, and regulatory standards required for cross-border trade.
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Cowin Semiconductor Materials ( Ningbo) Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Cowin Semiconductor Materials ( Ningbo) Co., Ltd..
Discover more products in Copper Ore from verified suppliers worldwide.