Sustainable Raw Materials-Wistron ESG

Sustainable Materials

Global resources are finite. As technology advances, human activity inevitably places increasing pressure on ecosystems and societies. At Wistron, the manufacturing of our products relies on a variety of raw materials. Only by committing to the use of sustainable materials will we be able to reduce environmental and social impact. As such, we have established a Sustainable Materials Policy, set corresponding goals, and launched related programs. In line with this policy, we assess the environmental and social impacts of our R&D, procurement, production, operations, and services, prioritizing the use of primary or secondary raw materials with the least negative impact.

Wistron's Definition of Sustainable Materials:

Compliant Hazardous Substance Management Regulations
Free from conflict minerals
Made from recycled or renewable sources
Sourced outside of ecologically protected areas
Support environmental conservation and avoid human rights violations

Reducing the Negative Environmental and Social Impacts of Raw Materials

To minimize the negative environmental and social impacts from raw material usage, Wistron is committed to integrating sustainability factors into procurement management. With reference to the ISO 20400 Sustainable Procurement Guidance, we have formulated a Sustainable Procurement Policy that incorporates sustainable materials. Through our Supplier Code of Conduct, we also require our supply chain partners to identify the environmental impacts associated with their own and upstream manufacturing processes, and to minimize any adverse effects on communities, the environment, and natural resources, while protecting public health and safety. Wistron assesses supplier sustainability from the following sustainability issues and impacts:

Environmental: Including climate change mitigation and adaptation, carbon and energy management, water resource management, and hazardous substances and waste control. We strive to prevent pollution throughout the extraction and processing stages of materials and to protect biodiversity and restore natural habitats.
Social: Including human rights and labor protection guidelines and occupational health and safety management.
Governance: Including supplier risk management and sustainable practices in upstream supply chains, such as business ethics and conflict minerals compliance.

Raw Materials Programs

Wistron's product range is diverse, and different product categories require different key materials. Among them, the most commonly used include plastics, aluminum, and steel in the chassis of notebook computers, desktop computers, monitors, and servers, as well as copper used in cooling components and PCBs. We prioritize the integration of sustainable materials into these high-volume material categories.

2025 Raw Material Usage

Raw Materials	Total Usage(ton)	Recycled Material Use Ratio(%)
Plastic	32,987.61	55.75%
Aluminum	3,322.04	20.27%
Steel/Iron	20,767.47	15.29%
Copper	691.66	0.72%
Cobalt	36.47	0
Nickel	4.34	0
Lithium	0.00142	0
Titanium	0.39	0

Note: Due to data collection limitations, the reported usage volumes of nickel, lithium, and titanium are based on components for which Wistron has completed full material disclosure (FMD). Starting in 2024, the scope of material surveys for plastics, aluminum, steel/iron, copper, and cobalt has expanded from previously covering only commercial notebook computers and servers to now encompassing all Wistron product categories

Establishing Traceability and Certification of Sustainable Materials

Since 2022, Wistron has progressively established material traceability and certification mechanisms, conducting comprehensive annual inventories of sustainable materials to understand our own usage. Traceability requirements vary by material type. For PCR plastics, traceability extends to the raw material supplier level, while for metal materials, traceability extends to the smelter level. Wistron also collects certification documents from suppliers to verify recycled material content. Through third-party verification mechanisms, we ensure the reliability and traceability of sustainable materials in the supply chain, providing a solid foundation for subsequent product certification and disclosure.

ISO 14021	Verification of recycled content in products, applicable to environmental claims for plastic and metal materials
EN 15343	Verification of recycled plastic content. An EU standard ensuring traceability of plastic recycling
SCS Global	A recycled material content certification standard developed by SCS Global Services for verifying recycled content in products and materials

Target for Third-Party Certification of Sustainable and Recycled Materials

Sustainable Materials Targets	Target	Status
Achievement rate of third-party verified recycled materials for EPEAT-certified NB, DT, AIO, Monitor, and Handheld Device products	100%	100%
Revenue growth rate of products using recycled materials	>3%	*-

* 2025 is the baseline year; therefore, no growth rate data is currently available.

Scaling PCR Material Applications Through Subsidiary Collaboration

To reduce the environmental impact of virgin materials, Wistron is committed to increasing the use of recycled materials in products. Balancing product functionality and aesthetic quality is the greatest challenge during R&D. To address this, we collaborate with our PCR plastic production subsidiary Wistron Advanced Materials to analyze PCR plastic properties, establish design standards, and progressively introduce PCR plastics into selected products.

For metal materials, the R&D team collaborates with metal casting raw material manufacturers to arrange batch material validation, comparing differences in material properties at different recycling ratios using identical molding parameters. We establish material acceptance standards and apply this experience to design across different product lines.

Publicly disclosed short-, medium-, and long-term targets include: the sustainable material percentage in new generation low-carbon NB products, introduction of sustainable materials into non-PC products, and the percentage of PCR material usage in materials to total annual shipments.

Sustainable and Recycled Material Integration Targets

2025 Actions	2025 Targets	2025 Results	Status	2026 Targets	2030 Targets
Increase the share of sustainable materials used in products	Developing next-generation low-carbon NB products with increased proportions of sustainable material. PCR > 40%	40.2%		Continue to increase the share of recycled materials in Key Parts(Project Pegasus)≥ 5.3% Select products will incorporate recycled critical minerals (+2) and recycled rare-earth elements (+1).	-

Note: The target rate (%) is defined as the weight of PCR materials used/total product weight

Sustainable Materials Training

To ensure colleagues responsible for sustainable materials work have sufficient professional knowledge, Wistron has progressively developed and launched relevant courses, establishing a systematic internal training program.

Three courses have been launched to date:

Sustainable Materials Management Mechanisms and Design Planning	This course covers global environmental trends, circular economy developments, sustainable materials management, and material flow analysis, while providing practical case studies on circularity and resource recovery
Recycling 101	This course gives an overview of PCR materials and its development as well as the recycling process and basic information on electronic waste disposal
Introduction to PCR Material Certification	This course provides in-depth coverage of PCR material advantages and disadvantages, electronic product safety, UL Yellow Card specifications, and flame retardant tests and standards

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