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Quality variation and supply anxiety due to dependency on a single supplier—by multi-sourcing ferrite cores for cable noise suppression, we achieved a stable supply and cost reduction simultaneously while ensuring equivalent quality. This is a standard scheme in fields where demand is growing due to the EV shift and 5G adoption.
This solution is tailored for companies facing challenges in the stable procurement of EMC and noise countermeasure components, such as electric wire manufacturers, air conditioner manufacturers, and automotive equipment manufacturers.
Simultaneous Challenges of “Defects/Complaints & BCP” Surface in Cable Noise Countermeasures
For cable noise suppression ferrite cores, responding to defects/complaints and addressing BCP (multi-sourcing) were requested simultaneously.
Dependency on a single supplier reached its limit in terms of both quality variation and risk.
● Situations where it surfaces: The defect and complaint response phase.
● Main impacts: Frequent complaints, production line stoppages, and the requirement to balance both quality stability and cost competitiveness.
Why Dependency on a Single Supplier is Risky: Quality Variation and Prolonged Lead Times
Procurement and supply chain factors (supply anxiety, lead times). Dependency on a single supplier.
● Specific evidence/basis: Physical property comparison of existing materials, defect sample verification.
Countermeasures Attempted So Far and Their Limitations
Requesting quality improvements from the single supplier (reached its limit), and abruptly searching for alternative sources (unstable).
Based on these limitations, we adopted the following approach as a more radical and fundamental solution.
Solution Approach: Developing New Overseas Manufacturers × Parallel Supply Across 3 Sites × Iterative Prototype Evaluation
By developing new products from overseas manufacturers and coordinating across 3 sites, we achieved both equivalent quality and stable supply, while also reducing costs.
Fuji Chemi Trading’s Supply Network: Headquarters × Shanghai × Thailand × Vietnam
This solution is made possible through the division of roles among multiple sites.
・Headquarters / Domestic Sales: Customer window and quality control
・Shanghai / Thailand / Vietnam: Supplier coordination, local customs clearance, and inventory
● Supply Network: Multi-source supply / Inter-site flexibility / Local delivery.
Results of Implementation
Eliminated delivery troubles, stabilized quality, and achieved cost reductions.
● KPI Candidates: Reduction in number of complaints / Zero delivery delays / Cost reduction.
● Implementation Lead Time: Repeating prototypes and evaluations, then transitioning to mass production.
Expected Ripple Effects and Horizontal Rollout
The effects of implementing this solution extend beyond solving the primary challenge. Please also leverage this as material for internal proposals and presentations to executive management.
・Rollout to general EMC countermeasure components (common mode chokes, shielding tapes, gaskets)
・Cross-industry expansion from white goods to automotive EMC countermeasures
・Perfect fit for the sharp increase in noise countermeasure demand driven by the EV shift
・Creation of BCP content under the theme of “breaking away from single-supplier dependency”
Difference from Competitors: Why Fuji Chemi Trading is Chosen
Domestic independent trading companies tend to lag behind in implementing overseas multi-sourcing. Fuji Chemi can handle parallel procurement across 3 sites in China, Thailand, and Vietnam, lowering costs while ensuring equivalent quality.
Product Information & Specification Overview
The main specifications of our proven products can be selected from multiple grades depending on the application and requirements. Typical specifications are as follows (please contact us for detailed specifications).
| Item | Specification |
|---|---|
| Main Application | Ferrite core for cable noise suppression / EMC countermeasure components |
| Target Industries | Electric wire / Air conditioners / Various equipment (White goods, automotive, etc.) |
| Supply Type | Multi-source supply (Multiple manufacturers, multiple sites) |
| Sites | Parallel supply across China (Shanghai) / Thailand / Vietnam sites |
| Related Fields | Common mode chokes / Shielding tapes / Gaskets, etc. |
| Rollout Scenarios | EV shift / 5G adoption / Automotive EMC countermeasures |
Utilization Methods & Operational Examples
In actual operations, the following patterns are frequently adopted.
・Evaluation Phase: Requirement hearing → Sample evaluation → Specification confirmation
・Pre-Mass Production Preparation: Division of roles across sites, specification standardization, and local launch
・Mass Production Phase: Ensuring short lead times and stable supply through our supply network
・Horizontal Rollout: Supporting horizontal rollout to other sites and other projects
FAQ (Frequently Asked Questions)
How do you ensure quality in multi-sourcing?
We ensure equivalent quality by repeating physical property comparisons and prototype evaluations for each manufacturer’s product before proceeding with parallel supply.
Is it possible to propose general EMC countermeasure components?
Yes, we can propose general EMC countermeasure components, including common mode chokes, shielding tapes, and gaskets.
Is it possible to expand into the EV and automotive sectors?
Yes, we can support the growing demand for noise countermeasures driven by the EV shift. We also have a proven track record in automotive EMC countermeasures.
Is it possible to use your services in combination with existing domestic suppliers?
Yes, it is possible. By using a dual-sourcing scheme that combines domestic and overseas products, you can also leverage it as a bargaining chip for price negotiations.
What is the extent of the cost reduction?
Although it depends on the specific project, there are many cases where cost reductions can be expected by strengthening your bargaining power through multi-sourcing.
Proposals by Related Application and Challenge
■ Overseas Procurement of PET Film for Power Cables + Domestic Slitting | Cost Reduction with Equivalent Quality Guaranteed
■ BCP-Compliant Procurement of FRP Gratings for Industrial Plants | Achieving Mass Production via Overseas Supplier Development and Quality Replication
■ Adoption of Chinese-made PI Tape for Heat-Resistant Process Films | Cost Optimization through Just-Spec Specifications
