Sumitomo Electric Invests $100 Million in World's Largest Wiring Harness Facility in Egypt
In May 2023, Sumitomo Electric Industries, a Japan-based manufacturer of automotive wiring systems, invested USD 100 million to establish the world's largest electrical wiring harness facility in Egypt .
Project Objectives:
Strengthen Sumitomo's global supply capabilities
Support the expanding automotive sector in Africa and Europe
Advance the production of next-generation wiring harnesses for electric and hybrid vehicles
Strategic Significance: The investment reflects the growing demand for automotive wiring harnesses driven by vehicle electrification and the increasing complexity of electrical systems in modern vehicles .
9. Aluminum vs. Copper: Technical Trade-Offs and Application Segmentation
While aluminum offers significant cost and weight advantages, copper maintains its dominance in certain applications due to superior electrical and mechanical properties .
Technical Comparison:
Parameter | Copper | Aluminum |
|---|---|---|
Conductivity (relative) | 100% | ~61% |
Density (g/cm³) | 8.96 | 2.70 |
Weight per same current | Lower | ~3× higher (requires larger size) |
Cost | ~$15,000/ton | ~$3,100/ton |
Flexibility | Excellent | Good (larger diameter, stiffer) |
Application Segmentation:
High-voltage power transmission: Aluminum is rapidly gaining share due to weight and cost advantages — can achieve same current capacity with larger diameter while still saving 20–45% weight
Low-voltage signal transmission: Copper maintains its position due to superior stability and reliability for sensitive signals
Space-constrained areas: Copper's smaller diameter and better flexibility suit instrument panels and door harnesses
Industry experts believe the future will be copper-aluminum coexistence, with automakers choosing materials based on specific application requirements rather than a wholesale replacement .
