Premium Copper Millberry
The highest-value copper scrap category internationally. High-grade, clean, bare bright copper wire scrap engineered for immediate secondary smelting and China-compliant global export.
Clean. Bare. Bright.
SINCHI WAYRA SA processes and supplies premium Copper Millberry scrap, generated from electrical wire production, cable manufacturing, and advanced industrial recovery. Our stringent sorting and mechanical stripping protocols guarantee an uncoated, oxidation-free product.
Our Super High-Grade (99.0–99.9%) and Ultra Premium (99.95–99.99%) Millberry meet the exacting demands of major Chinese copper smelters, guaranteeing zero plastic residue, rapid customs clearance, and maximum payable yield.
Comprehensive Export Specifications
1. Copper Scrap Categories by Cu Content
| Grade Type | Copper (Cu) % | Commercial Classification |
|---|---|---|
| Low Grade | 90–94% | Mixed copper scrap / Light contamination |
| Medium Grade | 94–97% | Industrial copper / Partially stripped wire |
| High Grade | 97–99% | Premium recycling grade |
| Super High Grade | 99–99.9% | Millberry export grade (China Preferred) |
| Ultra Premium | 99.95–99.99% | Premium China Smelter Grade Millberry |
2. Millberry Spec (99.0–99.99% Cu)
China Customs Preferred Commercial Specification.
| Component | Guaranteed Spec |
|---|---|
| Copper (Cu) | 99.0% – 99.99% |
| Wire Diameter | ≥1 mm |
| Aluminum (Al) / Iron (Fe) | ≤0.2% / ≤0.2% |
| Zinc (Zn) / Lead (Pb) | ≤0.1% / ≤0.05% |
| Tin (Sn) | ≤0.05% |
| Moisture | ≤1.0% |
| Contaminants | Nil Oil, Grease, Plastic, Rubber |
| Visual Standard | Bright reddish, unburnt, unalloyed |
3. Critical Penalty Elements & Rules
Strictly monitored to prevent Chinese customs rejection.
| Element | Preferred Limit | Penalty / Risk |
|---|---|---|
| Radioactivity | Nil | Immediate Rejection |
| Oil / Grease | Nil | Customs Rejection |
| Lead (Pb) | ≤0.05% | Severe Smelter Penalty |
| Tin (Sn) | ≤0.05% | Smelter Deduction |
| Aluminum (Al) | ≤0.2% | Grade Downgrade |
| Plastic / Rubber | Nil | Environmental Violation Risk |
Maritime Export & Packaging Standards
A. Bales & Jumbo Bags
Optimized for transport density and container efficiency.
- Compressed Bales: 200–1000 kg cubic/rectangular blocks, hydraulically compressed and secured with steel straps.
- Jumbo Bags (FIBC): 1–2 MT woven polypropylene bags, utilized primarily for granulated copper or chopped wire.
- Wooden Crates: ISPM-15 fumigated wood for premium buyers.
B. Trade Classifications
Standardized coding for global transit.
- ISRI Codes: BERRY (Bare Bright Wire), CANDY (No.1 Heavy Copper), CHOPS (Copper Granules).
- HS Codes: 74040000 (Copper Waste/Scrap), 74040010 (Copper Wire Scrap).
- Compliance: Basel Convention Rules & China Environmental Import Standards.
C. Inspection & Pre-Clearance
Executed by BQCIS, CCIC, SGS, or BV.
- Assay Verification: Copper purity, moisture testing.
- Hazard Checks: Strict radiation testing, foreign material inspection, non-hazardous declarations.
- Container Loading: 20FT carrying 20–25 MT, requiring absolute dryness and even distribution.
Export Documentation Requirements
Commercial Invoice • Packing List • Bill of Lading • Certificate of Origin • Certificate of Analysis (COA) • Weight Certificate • Inspection Certificate • Non-Hazardous Material Declaration • Radiation Free Certificate • Fumigation Certificate (if applicable).
Recovery & Processing Infrastructure
1. Scrap Beneficiation & Stripping
Raw cables undergo automated mechanical stripping to remove insulation. Advanced magnetic and eddy current separators eliminate iron, aluminum, and plastics. Final density/air separation and optional granulation ensure the material achieves bare bright (99.9%+) purity before hydraulic baling.
2. Downstream Copper Refining
Our premium Millberry acts as the ultimate clean feedstock for secondary smelting and electrolytic refining worldwide:
- Smelting Recovery: CuO + C → Cu + CO
- Electrolytic Refining: Cu2+ + 2e− → Cu
- Yield: Direct pathway to LME-Grade Cathode production.
Feeding the Industrial Engine.
By transforming industrial scrap into ultra-premium Millberry, SINCHI WAYRA SA provides a high-yield, sustainable feedstock alternative to major markets in China, India, and the UAE, driving the global circular economy forward.