HSMetal has completed qualified mass-supply of ED Copper Foil for Copper-Clad Laminate and Printed Circuit Board for Thai Customer, a professional copper-clad laminate (CCL) manufacturer based in Thailand. The delivered HTE (High Temperature Elongation) grade circuit copper foil is applied to Thai Customer's FR-4 rigid CCL production line, supplying downstream PCB manufacturers across Southeast Asia for consumer-electronics and industrial-control printed circuit boards.
This project validated HSMetal's capability to deliver CCL-grade electrodeposited copper foil with stable lamination performance, reliable anti-oxidation ocean-shipping packaging and full traceable quality documentation for Southeast-Asian laminate factories.
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Client Background
Client is a Thailand-based manufacturer specializing in FR-4 and high-Tg copper-clad laminate for the Southeast-Asian PCB industry. Their modern production facility operates automated hot-press laminating lines, precision shearing stations and full in-house quality inspection labs. They serves PCB downstream customers producing circuit boards for consumer electronics, industrial control equipment and automotive electronic components.
For continuous mass-production, thai client requires copper-foil suppliers who can guarantee:
- Consistent peel-strength performance for hot-press lamination
- Strict surface quality with minimal pinholes and no oxidation defects
- Uniform thickness and batch-to-batch stability
- Reliable packaging for long-distance sea transportation in high-humidity maritime environment
- Complete test documentation for incoming quality audit
Our thai client produces copper-clad laminate and pre-impregnated fiberglass (prepreg) as critical raw materials for the electronics industry. The company's products serve as the foundational substrates for PCBs manufactured by Southeast Asia and other leading electronics companies.
Client's Strict Technical Requirements
For this batch of electrodeposited copper foil for CCL & PCB, client specified the following requirements:
| Requirement Item | Specification |
|---|---|
| Product Grade | HTE standard electrodeposited copper foil |
| Applicable Standard | IPC-4562A |
| Thickness | 18 μm (1/2 oz) & 35 μm (1 oz) |
| Surface Treatment | Roughening + anti-tarnish anti-oxidation treatment for CCL lamination |
| Peel Strength | Stable, meet FR-4 resin prepreg lamination requirement |
| Surface Quality | Minimal pinholes, no scratch, no oxidation discoloration |
| Thickness Uniformity | Tight tolerance for continuous CCL production line |
| Packaging | Moisture-proof & anti-oxidation vacuum packaging for sea freight |
| Documentation | MTC, peel-strength & roughness test reports, RoHS & REACH declaration |
Key Project Challenges
Supplying CCL-grade electrodeposited copper foil to overseas Southeast-Asian factories brings specific challenges compared with domestic delivery:
- Long-distance sea-transport oxidation risk High-humidity maritime environment and 20-30 day shipping time can cause copper-foil surface oxidation if packaging is insufficient. Oxidized foil will fail lamination bonding and cause CCL scrap.
- Stable peel-strength for mass-production CCL factories run 24-hour continuous hot-press lines. Inconsistent peel strength across batches will cause delamination, bubbling or low bonding-strength defects, leading to production-line shutdown and material waste.
- Surface quality & pinhole control Even tiny pinholes or surface scratches on copper foil will become visible defects on finished CCL after etching, directly affecting downstream PCB yield.
- Batch-to-batch consistency Automated CCL production requires uniform thickness and surface roughness across every jumbo roll. Batch deviation will disrupt production parameter settings and reduce overall yield.
- Documentation compliance for Thai factory audit client requires complete, standardized test documentation for their incoming quality-control system. Incomplete or non-standard reports will delay material release to production line.
HSMetal's Targeted Solutions
HSMetal technical and quality team formulated a dedicated supply solution to address all above challenges:
1. Qualified CCL-grade ED copper foil with specialized surface treatment
We selected HTE-grade electrodeposited copper foil produced with dedicated roughening and anti-tarnish surface treatment formula, specifically designed for FR-4 CCL hot-press lamination. The controlled surface roughness guarantees stable peel strength when bonded with resin prepreg.
2. Strict pre-shipment full-range inspection
Every jumbo roll underwent comprehensive inspection before shipment:
- Peel strength test (lamination simulation)
- Surface roughness measurement
- Thickness tolerance verification across roll width
- Surface visual inspection for pinholes, scratches and oxidation
- Tensile strength & elongation test
- Full test data was compiled into standardized MTC and inspection reports.
3. Professional anti-oxidation moisture-proof sea-shipping packaging
To eliminate oxidation risk during long ocean transportation to Thailand:
- Each copper-foil roll was wrapped with moisture-barrier film
- Desiccant packs placed inside each package
- Vacuum-sealed packaging with oxygen indicator
- Outer wooden crate reinforcement for safe handling
This packaging solution ensures the copper foil maintains flawless surface quality after 20-30 days of high-humidity sea transit.
4. Batch consistency control & traceability
Each roll was marked with unique batch number traceable back to original production lot. Real-time production parameter monitoring and in-process sampling inspection guaranteed uniform thickness and surface properties across the entire order.
5. Complete documentation package for Thai factory audit
We delivered the full document set including:
- Mill Test Certificate (MTC)
- Peel-strength test report
- Surface roughness inspection record
- Thickness tolerance data
- RoHS & REACH compliance declaration
On-Site Production Verification at TLM Factory
After customs clearance and delivery to Client's facility, the copper foil was put into actual production. The following four stages verified our product performance on-site:
Copper Foil Roll Preparation & Feeding
Multiple jumbo rolls of our electrodeposited copper foil were loaded into Client's clean-room workshop. Thanks to our anti-oxidation vacuum packaging, all rolls arrived with flawless surface - no oxidation, no scratch, no moisture damage. The foil was then fed into the automated laminating line for continuous production.
Hot-Press Lamination on Automated Line
Our HTE-grade copper foil ran through Client's dust-free hot-press laminating line, compounded with FR-4 resin prepreg under high temperature and pressure. Operators in full protective garments monitored the whole process. The stable peel-strength performance of our copper foil achieved excellent bonding effect - no bubbling, no delamination, no poor-adhesion defects detected during lamination.
Precision Shearing of Finished CCL
After hot-press bonding, the continuous CCL web moved to the precision-shearing station. Laminate sheets bonded with our electrodeposited copper foil showed uniform surface and consistent thickness. The batch-to-batch stability helped Client maintain high yield during their high-speed cutting process, with minimal waste from dimension or surface defects.
Finished CCL Inspection & Release
The final batch of FR-4 copper-clad laminates passed TLM's strict finished-product quality audit. These qualified CCL sheets were released for delivery to downstream PCB manufacturers across Southeast Asia, where they will be etched into conductive traces for consumer-electronics and industrial-control printed circuit boards.
Finished Products Ready To Ship
Quality Assurance
ROSH and REACH Certificate
The Collaboration: A Strategic Supply Partnership
HSMetal (Luoyang Hongsheng Trading Co., Ltd.) is a specialized supplier of high-purity conductive copper, CCL-grade electrodeposited copper foil, lithium-battery copper foil and nickel-base superalloy materials. We deliver IPC-4562A compliant Electrodeposited Copper Foil for Copper-Clad Laminate and Printed Circuit Board including HTE, RTF and HVLP grades for global CCL manufacturers.
With strict quality management, professional anti-oxidation sea-shipping packaging and full traceable documentation, we support CCL factories across Southeast Asia, Europe and other regions. We provide prototype trial, custom slitting and large-volume serial supply for laminate manufacturers worldwide.
Our electrodeposited copper foil has been successfully integrated into Thai Client's CCL production line, serving as the conductive core material for their FR-4 laminate products. This collaboration represents a significant achievement for both parties:
For Thai Client: Access to high-quality, consistently performing electrodeposited copper foil that meets the rigorous demands of modern CCL manufacturing
For HSMetal: Validation of our copper foil technology by one of Southeast Asia's most respected CCL manufacturers
The partnership was built on our proven track record of delivering electrodeposited copper foil with superior physical properties, uniform thickness, and excellent adhesion characteristics-all critical attributes for multilayer and high-density PCB manufacturing.
The Value of High-Quality Electrodeposited Copper Foil
Electrodeposited copper foil is the foundational conductive material for CCL and PCB manufacturing. The majority of copper foil used in CCL production is electrodeposited (ED) copper foil, valued for its:
- Uniform thickness across the entire roll, ensuring consistent electrical performance
- Excellent adhesion properties to substrate materials
- Suitability for multilayer and high-density PCB applications
Our electrodeposited copper foil is engineered to meet the evolving demands of the electronics industry, where CCL and PCB manufacturers are increasingly required to support high-frequency, high-speed applications such as 5G telecommunications, AI servers, and advanced automotive electronics.
Technical Excellence in Copper Foil Manufacturing
Our manufacturing process incorporates advanced electrodeposition technology with rigorous quality control measures:
- High-purity copper feedstock (99.9%+ purity) ensures superior electrical conductivity
- Precision thickness control from ultra-thin 9 µm and 12 µm grades (ideal for advanced HDI and high-end CCL) to standard 18 µm and 35 µm options
- Comprehensive product portfolio including HTE (High Temperature Elongation), RTF (Reverse Treated Foil), and VLP/HVLP (Very/Hyper Low Profile) series
All products are manufactured in full compliance with IPC-4562 industry standards, with every batch undergoing comprehensive physical, electrical, and reliability testing to guarantee consistent performance.
Why This Partnership Matters
This successful delivery to Thai Client demonstrates:
- Regional Market Validation - Our copper foil has been qualified by one of Thailand's most respected CCL manufacturers, confirming our technology meets the stringent requirements of the Southeast Asian electronics industry.
- Supply Chain Security - As Thai Client's raw materials, including copper foil, must be imported from overseas due to the absence of domestic manufacturers in Thailand, our reliable supply partnership provides Thai Client with a stable, high-quality source of this critical material.
- Technical Compatibility - Our copper foil has demonstrated excellent lamination compatibility with Thai Client's FR-4 CCL production process, contributing to improved manufacturing yield and product reliability.
The successful delivery to Thai Client marks the beginning of a long-term strategic partnership. As the global CCL and PCB industry continues its growth trajectory-driven by telecommunications infrastructure upgrades, data center expansion, and the proliferation of advanced electronic devices-we remain committed to:
- Continuing to supply Thai Client with high-performance electrodeposited copper foil
- Developing next-generation copper foil solutions for emerging applications
- Expanding our footprint in the Southeast Asian electronics materials market
Call to Action
Do you need IPC-4562A compliant electrodeposited copper foil for your CCL or PCB production? We supply HTE, RTF and HVLP grades with custom slitting service and full test documentation.
Send your inquiry for quotation & sample evaluation.
FAQ
Q1: Who is the Thai customer mentioned in your case study?
A:We have successfully partnered with a leading CCL (copper‑clad laminate) and prepreg manufacturer in Thailand. This customer is one of the largest producers of FR‑4 laminates in the country and operates multiple manufacturing plants with international certifications. They serve both domestic and export markets, primarily supplying CCL to PCB manufacturers in the automotive, telecommunications, and consumer electronics sectors.
Q2: What specific copper foil products are you supplying to this Thai customer?
We are supplying high‑performance electrodeposited copper foil, primarily HTE (High Temperature Elongation) grades, in various thicknesses (ranging from 9 µm to 35 µm and above). The surface treatment and thickness are tailored to the customer's specific lamination process and final product requirements, ensuring excellent adhesion, electrical uniformity, and thermal reliability.
Q3:Why did this customer choose your copper foil over other suppliers?
A:The customer selected us after a rigorous qualification process that evaluated product quality, consistency, technical support, and supply reliability. Key deciding factors included:
- Superior electrical and mechanical properties – Our foil meets or exceeds IPC‑4562 standards for tensile strength, elongation, and peel strength.
- Exceptional batch‑to‑batch consistency – Our advanced process control ensures every delivery matches the customer's tight specifications.
- Close technical collaboration – We worked directly with their engineering team to optimise lamination parameters and resolve process challenges.
- Reliable logistics and on‑time delivery – Our supply chain capabilities support their production schedules with minimal lead‑time variability.
Q4:How does this partnership benefit the customer's overall business?
A:By integrating our high‑quality copper foil, the customer produces more reliable CCL, which directly improves the performance of downstream PCBs. This strengthens their supply chain resilience, reduces total cost of ownership, and enhances their competitive position in both domestic and export markets-especially in demanding sectors like automotive electronics, telecom infrastructure, and industrial controls.
Q5: What is the typical lead time and supply capacity for this Thai customer?
A:We maintain a dedicated production line and buffer stock for this key account to ensure rapid response. Typical lead time is 4‑6 weeks from order confirmation, with flexibility for urgent orders. Our annual production capacity is substantial, and we have allocated sufficient volume to support the customer's current and projected growth. For specific quantities, please contact our sales team.
Q7:Can other customers expect the same quality and service as this Thai customer?
A:Absolutely. The quality management system and technical support framework applied to this case are our standard offerings for all customers worldwide. We treat every client with the same commitment to excellence-from initial sampling through volume production. This case serves as a reference that validates our capability, and we are ready to replicate this success for other CCL and PCB manufacturers.
Q8: What is the Minimum Order Quantity (MOQ)?
A: Normally MOQ is 200kg, We always expect more opportunities with you. But for some special material or special size let's communicate the actual status.
Q9 Can I get free samples?
A: Yes, we support sample supply for performance verification. Standard-size samples (A4 size or 300×300mm) are available but need you pay for freight cost. Custom-size or special-condition samples incur material and machining costs, if you are old customers these costs can be fully credited toward your next formal order.
Q10: What payment terms do you accept?
A: We accept T/T, L/C, and other common methods. For new customers, we usually require 50% deposit and 50% balance before shipment. Flexible terms can be negotiated for long-term partners
Q11: What if I find quality issues after receiving the goods?
A: We provide a 100% quality guarantee. If any non-conformity is found, please provide photos and test data within 7 working days of receipt. We will respond within 48 hours and agree on replacement, return, or compensation terms.
