Quality & Certification

At YUNG LIEN, quality isn't just a goal — it's our guarantee. We maintain the highest standards through internationally recognized certifications and regular audits by leading global organizations. Our commitment to quality assurance and social responsibility ensures that every product meets or exceeds industry requirements.

ISO 9001:2015 Certification

Certified quality management system ensuring consistent product excellence.

✓ Consistent product quality
✓ Systematic quality management
✓ Continuous improvement
✓ Enhanced customer satisfaction
✓ Complete traceability

SEDEX Certification

Committed to ethical business practices and environmental sustainability.

✓ Safe working conditions
✓ Environmental sustainability
✓ Transparent supply chain
✓ Third-party audits
✓ Continuous improvement

Quality Assurance

Comprehensive quality control at every stage of production.

✓ Raw material inspection
✓ In-process testing
✓ Laboratory analysis
✓ Final product verification
✓ Performance testing

We Are Audited By

We are regularly audited by leading global organizations to ensure quality, safety, and social responsibility.

Our transparent approach to auditing ensures that we maintain the highest standards consistently across all facilities.

Quality Assurance

Precision at every stage - from raw materials to final delivery

1

Raw Material Inspection

Certified materials verified upon arrival with complete documentation and traceability. All suppliers must meet our stringent quality standards.

2

In-Process Testing

Continuous monitoring during production with statistical process control. Real-time adjustments ensure consistent quality throughout manufacturing.

3

Laboratory Analysis

Advanced testing equipment including in-house COR and C-D test machines for comprehensive material property verification.

4

Final Product Inspection

100% quality verification before shipping. Every product undergoes rigorous inspection to confirm it meets exact specifications.

5

Performance Testing

Products tested under real-world conditions to ensure durability, safety, and performance meet or exceed requirements.

Advanced Testing Capabilities

State-of-the-art equipment for comprehensive quality verification

Coefficient of Restitution testing ensures our lacrosse balls and sports equipment meet exact performance specifications required by NCAA, NFHS, and NOCSAE standards.

In-House COR Test Machine

Compression-Deflection testing verifies material properties and durability. This ensures consistent performance and safety across all rubber products.

C-D Test Machine

Social Responsibility

Committed to People, Planet, and Progress

Quality & Certifications