Walsin Lihwa adheres to the spirit of "foresight, persistence, and hard work in research and development" to implement PDCA cycle management of Plan, Do, Check, and Act. In terms of product quality control, in addition to complying with international standards and industry needs, we have obtained multiple product certifications. The Wire and Cable and Stainless Steel Business Group follow the ISO 9001 Quality Management System and strengthens quality management and risk control. Through process management and technology application, from product design to after-sales service, we ensure that the quality of our products meets customer expectations. We adopt PDCA and Business Process Re-engineering (BPR) strategies to improve operational efficiency and personnel capabilities, and strengthen independent quality management. We promote DMAIC solutions, and through Define, Measure, Analyze, Improve and Control, we apply advanced quality tools and big data to conduct risk assessment and quality control to ensure that products meet "Zero defects" and achieves a win-win situation of quality and customer satisfaction.

Walsin Lihwa is committed to "innovation, stable quality, and efficient management", constantly improving product quality, expanding the market, establishing a reliable quality system, and implementing the Quality Enhancement Action Plan:

• The Quality Assurance Division has been given independent responsibilities and authority.
• Adopted international-level testing equipment, established a TAF accredited testing laboratory, and cooperated with third-party organizations to ensure technical verification.
• Strengthened risk management and ensured the reliability of products and services through analysis.
• Strengthened product portfolio and industry-university-research cooperation, improved the success rate of new product development and opened up new markets.
• Provided customers with the required certifications to ensure product performance and quality and meet market demands.
• Improved manufacturing capabilities, applied Industry 4.0 technology, and produced high-quality industrial cables.
• Established strong auditing and certification capabilities and continuously improved the quality management system through the PDCA concept.

In the Wire and Cable Business Group, we have continued to obtained third-party certifications under ISO 9001 quality management system and classification societies from the United States (ABS) / France (BV) / Norway and Germany (DNV-GL) / the United Kingdom (LR) / Japan (NK) / Taiwan (CR) and other countries, British Approvals Service for Cables (BASEC), Loss Prevention Certification Board (LPCB), North American safety standards (UL), Voluntary Product Certification (VPC), CNS Mark, and Registration of Product Certification in accordance with the relevant industry information and trade certification regulations of each country for the Yangmei Smart Manufacturing Plant as a basis for entering the industry supply chain and expanding our sales applications and channels.

The Stainless Steel Business Group aims to become the most reliable cold finished bar supplier in Asia's smart manufacturing field. Adopting the strategies of high value, service, flexibility, and intelligence, the Group pursues "zero-defect" quality based on the ISO 9001 quality management system and the integration of IATF 16949 processes and risk management. We improved yield rate, reduced costs, maintained industry leadership through lean management, adopted unified quality management standards to meet customer and market needs, at the same time we obtained multiple international certifications to ensure the accuracy of measurement and inspection capabilities, expand service markets, and comply with applicable regulations, including pressure vessel PED/AD 2000, classification society verification and other industrial categories; Japan JIS MARK product verification, India BIS product verification, CE marking and other national level certifications. The Taiwan plants have passed the global automotive industry quality management system IATF 16949 certification, and obtained the UK Conformity Assessed (UKCA) and UK Pressure Equipment Safety Regulations (PESR) certification in 2023.

Monitor and manage important activities and indicators in the production process, ensuring that products meet quality standards and customer requirements.

Walsin Lihwa recognizes the importance of corporate citizenship and strictly monitors the quality of its products and services to ensure that no hazardous substances are added. Through raw material inspection and international chemical management control, we ensure compliance with relevant laws and regulations, and have adopted low-energy, low-pollution manufacturing processes that do not use conflict minerals. The Company regularly commissions third party testing and continues to update and disclose information on hazardous substances to meet the highest safety standards. From 2021 to 2024, the products of the Stainless Steel Business Group were 100% compliant with EU RoHS 2.0 Hazardous Substance Restrictions, REACH (SVHC) EU High Concern Substances Regulations, PFOS sales and use restrictions, as well as restrictions on PFOA and related compounds, demonstrating our commitment to non-toxic manufacturing. Our wire and cable products comply with the RoHS directive, REACH, and the asbestos ban in the shipping industry, and we provide relevant information to our stakeholders for reference. The plastics used in our products are all self-formulated and declared RoHS compliant in 2024, which fully demonstrates that no hazardous substances were added to the Company's products in the manufacturing process.