Our Focuses｜Sustainable Supply Chain｜Sustainable Supply Chain Communication

Supply Chain Sustainability Engagement and Assistance, Support

To advance supply chain management on the sustainability journey, Winbond Taiwan combined technical and quality fundamentals with innovative thinking and management models. In addition to regular ESH training for suppliers/contractors and the OSAT supplier conference, Winbond expanded internal sustainability education through the ESG Academy within the Supply Chain Management Center to ensure front-line colleagues maintained up-to-date thinking, knowledge, and capabilities.

Management Process for Sustainability Collaboration Activities

Suppliers Empowerment in Sustainability Initiatives

Since establishing the Sustainable Supply Chain Team in 2022, Winbond actively engaged suppliers as “+1” sustainability partners. In 2025, four supplier empowerment projects were implemented: Co-Sustainability (ESG exchanges, analysis, and learning); sustainable logistics and low-carbon transportation; resource circularity projects (e.g., styrofoam/hollow boards/UPW filter cores reuse and IPA incineration reduction); and sustainable supply chain management forums. Cumulatively, 502 suppliers have participated in Winbond’s engagement and capacity building. Winbond will continue to match suppliers aligned with sustainability values and expand industry demonstration impacts.

_{Note : % of unique significant suppliers in capacity building programs = Total number of suppliers in capacity building programs / number of significant suppliers in 2025}

Regular ESH Training for Suppliers/Contractors

To safeguard workplace equality, occupational safety and health, and fire safety and to strengthen supplier awareness, Winbond provided annual training for suppliers’ employees who worked on-site or provided resident services. In 2025, training hours for workplace equality, occupational safety and health, and fire safety reached 5,391 person-hours across the Group.

Deep Engagement – Suppliers ESG Co-learning workshop

Since advancing its sustainable supply chain, Winbond has deepened industry exchange through its Co-learning Workshops, covering environmental carbon reduction, climate change adaptation, greenhouse gas and carbon management, human and labor rights protection, and corporate governance. As of 2025, a total of 38 partner companies had participated, with 2,626 cumulative participants and 5,265 co-learning hours. 
Winbond has continued to deepen its sustainability co-learning mechanism, expanding from perspective exchanges and thematic discussions to ecosystem dialogues. This has enabled timely understanding of semiconductor ESG trends and, through generous sharing from benchmark suppliers, helped capture practical experience in international sustainability ratings and human rights due diligence. Internally, the platform provides colleagues with the latest industry insights to optimize supply chain planning; externally, it serves as a stage for suppliers to demonstrate sustainability performance. Looking ahead, Winbond will continue using this model to encourage suppliers to invest in low-carbon processes and green product R&D, strengthening the global competitiveness of Taiwan’s semiconductor supply chain and the “Silicon Shield” capability from upstream.

• Winbond's Supplier ESG Co-learning Process

• Winbond's Supplier ESG Co-learning Performance

ESG Academy for Supply Chain Management Center

Since 2022, Winbond has been implementing 'ESG Intelligence Enhancement Education and Training,' initially aimed at its materials staff. In 2025, training hours for colleagues in the Supply Chain Management Center reached 5,358 person-hours, averaging 34 hours per employee. Training included quality courses, supplier manufacturing management courses, and digital management courses required for routine work. Winbond also encouraged participation in iPAS Net-Zero Carbon Emission Planning Administrator training and industry AI talent development programs led by the Ministry of Economic Affairs. In 2025, seven colleagues achieved iPAS Net-Zero Carbon Emission Planning Administrator certification.

Supplier Sustainability Training

OSAT Suppliers Communication and Management Conference

2025 OSAT supplier conference – Further strengthening supply chain resilience: From co-learning and innovation to ecosystem alliances

Behind Winbond’s highly competitive memory products are colleagues’ unwavering commitment to quality and OSAT partners’ pursuit of technical excellence. At the 2025 OSAT supplier conference, the general manager’s in-depth industry insights further reinforced commitments to green manufacturing and strengthened supply chain cohesion. Practical experience sharing by site and division leaders also accelerated sustainability upgrades across the supply chain. To recognize partners’ contributions, Winbond selected “Sustainable Outstanding OSAT Suppliers” based on five key indicators, including quality and sustainability, honoring outstanding companies that advanced alongside Winbond.

Supplier ESG Strengthening Project

To firmly advance alongside with suppliers on the sustainable journey, in 2023, Winbond expanded its sustainable operations in the supply chain from an ecosystem perspective. In terms of the environment, cooperation focuses on low-carbon initiatives and joint beach cleanups; in terms of governance, Winbond invited suppliers to conduct procurement education and training together, thereby strengthening the sense of partnership between suppliers and Winbond. In terms of social inclusion, Winbond actively responds to the expectations of various stakeholders for sustainable supply chain management. Winbond firmly believes that in the face of a changing and challenging business environment, it is necessary to break away from linear thinking based on the supply chain, value chain, and industry chain, and to systematically reorganize and manage sustainability-related work with suppliers using a systemic approach in order to establish a sustainable growth mindset that embraces cooperation and mutual benefit in the long term.

Winbond Sustainability Supply Chain Low-Carbon Transformation Project

In 2023, Winbond collaborated with 13 companies including Powertech Technology Inc., Greatek Electronics Inc., Probe Test System Corp., Lingsen Precision Industries, Walton Advanced Engineering, Inc., DuPont Taiwan, Resonac Semiconductor Materials (Taiwan), Wonik Quartz Taiwan Co., LTD., United Industrial Gases Co., LTD., Hsing Mien Industry CO., LTD., Edwards Vacuum, Taiwan Puritic Corp., and Mega Union Technology Inc. to execute three major projects: “Reduction of Factory Process Gas Emissions,” “Implementation of Lean Electricity and Water Conservation Measures in Factories,” and “Promotion of Greenhouse Gas Inventory and Hotspot Analysis in the Supply Chain.” During the collaborative period of this project, a total investment of over 200 million New Taiwan Dollars was made. Within two years, these initiatives aimed at promoting low-carbon transformation gradually increased their carbon reduction capacity. It is anticipated that when the projects completed in 2025, an annual reduction of approximately 9,500 tCO₂e will be achieved, equivalent to 14 times the annual carbon sequestration by the Daan Forest Park annually. This achievement not only serve as a model promoting the low-carbon transformation of the semiconductor industry supply chain but also showcases the multifaceted qualitative and quantitative operational methods with benefits, which make Winbond the first semiconductor to receive a full subsidy of NT$30 million. Therefore, the Ministry of Economic Affairs ‘ Industrial Development Administration invited Winbond to the “2023 Supply Chain Transformation and Innovation Forum" as a representative of the semiconductor industry to share its experiences in sustainable operations and low-carbon transformation.