We supply electrolytically refined and zone-refined high-purity copper (5N 99.999% and 6N 99.9999%) from Chinese producers for semiconductor sputtering targets and bonding wire, superconducting cable stabilisers, cryogenic and research applications — alongside standard Grade A cathode and OFC rod for industrial buyers.
6N lots ship with GDMS full-element certificates (typically ≥ 70 elements) and RRR values on request. Live China copper prices are shown below; high-purity grades are quoted as a premium over the daily cathode price.
Request a quoteBRIDGE GROUP (ABridge Co., Ltd. · Ecobridge) — Gwangju, South Korea. Licensed trading company; state-trading rice quota holder under Korea's aT; direct exporter of SiC focus-ring CVD furnace systems to China (June 2026).
Product
Specification
Purity
Main uses
6N copper (99.9999%)
Ingot 1–5 kg · rod ø10–50 mm · granule 2–6 mm · GDMS cert
99.9999%
Sputtering targets, bonding wire, superconductor stabiliser, research
By GDMS (glow-discharge mass spectrometry) covering the full periodic table, not a 10-element ICP sum. Buyers may nominate an independent lab; we will not quote against certificates that exclude key impurities (Ag, S, O, As, Sb, Bi).
Do you supply OFC / C10100?
Yes — OFE/C10100 rod, bar and plate from Chinese mills, with oxygen ≤ 5 ppm certificates.
Minimum order?
6N: 10 kg; 5N: 25 kg; cathode/OFC: 1 t. Samples 100–500 g.
Compliance & quality
Every enquiry is screened before quotation: strategic-items self-classification (Korea YESTRADE) and buyer screening against the U.S. Consolidated Screening List and UN/EU sanctions lists. We do not quote sanctioned parties, military end-users or embargoed destinations.
Materials ship with mill/producer certificates of analysis (ICP-MS/GDMS as applicable). Samples are available for independent third-party assay before volume orders.
Semiconductor finished goods are sourced on a demand basis from authorised Chinese producers and distributors only — no EOL brokerage, no unverified stock. Sample lots are verified before shipment.
About the supplier
BRIDGE GROUP (ABridge Co., Ltd. · Ecobridge) — Gwangju, South Korea. Licensed trading company; state-trading rice quota holder under Korea's aT; direct exporter of SiC focus-ring CVD furnace systems to China (June 2026).