Supply Chain Sustainability Management-Wistron ESG

Supply Chain Sustainability Management

Wistron has established a comprehensive sustainable supply chain management process that consists of five core steps: adherence to sustainability norms, sustainability risk assessments, sustainability assessment, corrective actions and capability building, and the implementation of reward and exclusion mechanisms. This mechanism is designed to ensure that every supplier complies with Wistron’s Code of Conduct and sustainability requirements, while effectively mitigating potential ESG-related risks. Through regular and comprehensive risk assessments and audits, Wistron not only monitors suppliers’ implementation but also provides professional guidance to help suppliers develop and execute targeted improvement action plans. In addition, through long-term collaboration and capability-building initiatives, Wistron supports suppliers in continuously enhancing their performance across environmental, social, and governance (ESG) dimensions. These efforts not only improve the overall sustainability performance of suppliers, but also strengthen Wistron’s leadership and influence within the global supply chain, ensuring the steady advancement of the entire value chain toward sustainability.

Compliance with Sustainability Standards

Supplier code of conduct

In advancing corporate sustainability, Wistron recognizes the critical impact of supply chain management on both society and the environment. To this end, Wistron has established a Supplier Code of Conduct as a foundation for supplier action in sustainability practices. This Code is aligned with the Responsible Business Alliance (RBA) Code of Conduct and the United Nations Guiding Principles on Business and Human Rights, covering five core areas: labor rights, health and safety, environmental protection, ethics, and management systems. The Code also includes specific requirements related to biodiversity, the prevention of deforestation, and land conservation, aiming to holistically enhance the sustainability of the supply chain. Wistron also incorporates the level of supplier compliance with the Code as a key evaluation criterion in procurement decisions to ensure alignment between supply chain partners and the Company’s sustainability goals.

In 2025, 100% of Wistron’s Tier-1 suppliers signed the Supplier Code of Conduct, demonstrating their full recognition of and commitment to Wistron’s sustainability standards. In addition, depending on the supplier category, Wistron further required the signing of the letter of agreement, the declaration of controlled hazardous substances confirmation and compliance, and the declaration of non-use of conflict minerals, all of which also achieved a 100% signing rate. These measures have not only strengthened Wistron’s governance capabilities within the supply chain but also promoted a shared commitment among partners to uphold higher standards of social and environmental responsibility.

Signing of the Supplier Code of Conduct

Year		2025 Performance	2025 Targets
Tier-1 suppliers	Number of suppliers required to sign	421	-
Tier-1 suppliers	Percentage of signed suppliers（%）	100	100
New suppliers	Number of suppliers required to sign	43	-
New suppliers	Percentage of signed suppliers（%）	100	100

Supplier Integrity Management

Wistron is committed to building a responsible supply chain of the highest standards. Through its Supplier Code of Conduct, the Company establishes clear behavioral norms and standards for its partners. All suppliers are required to complete training courses on Wistron’s anti-corruption policies, with a 100% completion rate. In addition, Wistron reinforces its commitment to ethical business practices and integrity during the annual supplier conference. The Company also maintains dedicated whistleblowing and grievance channels exclusively for suppliers, which are managed primarily by the Global Supply Chain Management unit. In 2025, there were no supplier-reported cases, and no contracts were terminated due to misconduct or corruption.

Wistron supplier code of conduct

Sustainability Risk Assessment

In order to assess sustainability risks within the supply chain, Wistron conducts a two-phase risk investigation on suppliers. Through varying requirements at different stages, we aim to evaluate suppliers’ ESG performance and identify potential risks within the supply base. The first phase focuses on comprehensive risk screening, while the second phase further identifies high-risk suppliers. For high-risk suppliers identified through the assessment process, Wistron initiates an assessment procedure, combining professional guidance with support to help suppliers develop and implement improvement plans. This approach enables effective control at the source of risk and helps reduce overall sustainability risks within the supply chain.

Active Assessment Target: All suppliers

To identify potential risks within the supply chain, Wistron conducts preliminary assessments and screening of suppliers. The evaluation covers multiple dimensions, including environmental, social, and governance (ESG) performance, business relevance, country or region of operation, industry type, and commodity characteristics. Through this process, suppliers with potential risks are preliminarily identified and brought under management to reduce overall supply chain risk.

Factor	Content
Environmental	Review major negative events or illegal records related to environmental issues, including but not limited to excessive hazardous substances, air pollution emissions, water pollution emissions, improper disposal of waste and toxic substances, etc. Evaluate potential negative impact factors related to environmental issues, such as high carbon emissions, non-local procurement leading to increased energy consumption and resource waste, etc.
Social	Review major negative events or illegal records related to social issues, such as violations of labor rights or occupational safety, forced labor, etc. Evaluate potential negative impact factors related to social issues, such as the disclosure of negative reports involving the living wage or impact on local communities.
Governance	Review major negative events or illegal records related to governance issues, including corporate fraud, bribery or false financial reports, etc. Evaluate potential negative impacts factors related to governance issues, such as insufficient operational soundness or anti-competitive behavior.
Business relevance	For critical business categories, we conduct a preliminary assessment based on procurement amount and in consideration of the irreplaceability of products and the pioneering nature of industry technology.
Country / Region	Based on the location of the supplier, we include regional and high-risk country controls and consider geopolitics, conflicts, and risk identification of high-risk countries.
Sector	Based on industry and business attributes, we evaluate resource intensity or labor involved for service processes or processes of specific concerns.
Commodity	Based on product attributes and raw material composition, we seek to have comprehensive understanding of any potentially hazardous substances or high-energy-consuming materials.

Risk Assessment Scope : Tier 1 and Non-Tier 1 Suppliers

To comprehensively understand the sustainability risks of existing suppliers, Wistron distributes a Sustainability Risk Self-Assessment Questionnaire to both Tier 1 and non-Tier 1 suppliers, requiring them to provide supporting documentation to gain deeper insights into their sustainability risks and management practices. The questionnaire covers five key sustainability dimensions: sustainability and operation risk management, supply chain and continuity operation, environmental protection, human rights and labor protection, and occupational safety and health. Through this mechanism, Wistron is able to identify and manage sustainability risks across the supply chain and mitigate potential risks.

Suppliers with a score of less than 80 are defined as high-risk suppliers. In 2025, a total of 12 high-risk suppliers were identified. According to the results, the main sustainability risk factors in 2025 were concentrated in the areas of environmental protection and sustainability and operation risk management. In order to effectively mitigate the impact of these risk factors, Wistron will prioritize greenhouse gas inventory and certifications (ISO 50001 and ISO 14064-1) for critical and high-energy-consuming material suppliers. Other identified risk factors will be listed as items requiring guidance for remediation through assessment and improvement programs.

Dimension	Risk factors	Countermeasures
Environmental protection	Energy conservation and carbon reduction mechanisms for energy management have not been implemented（ISO50001）	Engaged high-energy-consuming material suppliers to obtain ISO 50001 certification
	Uncertified greenhouse gas inventory certification management (ISO14064-1)	Engaged high-energy-consuming material suppliers to obtain ISO 14064-1 certification
	No statistics on scope 3 greenhouse gas emissions generated by products or services	Engaged high-energy-consuming material suppliers in Scope 3 greenhouse gas inventory
	No statistics on scope 1 greenhouse gas emissions generated by products or services	Engaged high-energy-consuming material suppliers in Scope 1 greenhouse gas inventory
Sustainability and operational risk management	Response plan management for business continuity has not been implemented	List as items requiring guidance for remediation

Sustainability Assessment

To comprehensively assess the implementation of sustainability practices among suppliers, Wistron adopts a diversified assessment approach, including both desk assessments and on-site assessments. On-site assessments are further categorized into 2nd party assessments, 3rd party assessments, and assessments conducted in accordance with industry standards. Wistron has also established annual targets and a long-term goal for 2030, providing clear direction for promoting sustainability in the supply chain over both the short and long term, thereby enabling continuous progress toward these objectives.

Type	Assessment Format	Approach	Scope	No. of Assessments in 2025	2025 Target	2030 Target
Desk	Desk assessments	Distribute self-assessment questionnaire on sustainability risks and request supporting materials	511 tier 1 and non-tier 1 suppliers	511	Conduct desk assessments for all significant suppliers	Conduct desk assessments for all suppliers (incl. tier 1 & non-tier 1)
On site assessments	2nd party assessments	On-site assessments and review operations are performed by Wistron for significant tier 1 suppliers, and by tier 1 suppliers or consultants for non-tier 1 suppliers	283 significant tier 1 suppliers and significant non-tier 1 suppliers	168	Conduct on site assessment for all significant suppliers	Conduct on site assessment for all significant suppliers
	3rd party assessments	Third-party verification		3
	Industry Standard	Assessments based on RBA standards		112
Total number of on-site assessments				283	100%	100%

Corrective action/improvement plans

To enhance the sustainability performance of suppliers, Wistron provides counseling measures for deficiencies identified in assessments, including on-site and remote support to assist suppliers in developing and implementing improvement plans. If the supplier is unable to complete the improvements within two months, they may submit another assessment application for a second assessment to confirm the implementation of the improvement plan. However, if a supplier fails to pass the second assessment, they must wait six months before reapplying. During this period, Wistron will evaluate the feasibility of using alternative materials or consider replacing the supplier. If immediate substitution is not feasible due to urgent supply requirements, the replacement will proceed once an alternative is in place. For suppliers unable to meet improvement requirements within two years, Wistron will gradually reduce procurement volume until the partnership is terminated or the supplier is disqualified. In 2025, all assessed suppliers completed the required improvements within the specified timeframe, and no partnerships were terminated due to non-compliance.

Supplier assessment corrective/improvement actions

Dimension	Topics	Corrective / Improvement actions
Sustainability and operation risk management	Business Continuity Management / Sustainability Disclosure	Develop an annual schedule for BCP exercises, ensuring critical personnel are trained, and record outcomes with subsequent improvement measures. Systematically consolidate and document existing business continuity and risk management materials. Establish verifiable operational continuity capabilities to enhance client trust, meet specific customer or contract requirements, and reduce the risk of major operational disruptions.
Supply chain sustainability management	Supplier selection	Establish standardized supplier scoring criteria and selection procedures, complemented by training to ensure procurement processes align with sustainability requirements and standards. Integrate sustainability factors such as energy, carbon, and water management into supplier selection criteria to progressively enhance maturity of ESG management across the supply chain. Ensure all procurement, quality assurance, and supply chain personnel clearly understand and correctly implement ESG requirements to improve sustainability performance of the overall supply chain.
Environmental protection	Energy management / Greenhouse gas management	Develop and implement carbon emission control procedures, clearly defining departmental responsibilities, reduction methods, and implementation steps, with monitoring, recording, and audit mechanisms to ensure enforceability and continuous improvement. Publish annual energy-saving and emission-reduction targets and implementation plans, specifying indicators, responsibilities, timelines, and resources, with tracking and reporting mechanisms for performance evaluation and improvement.
Human rights and labor protection	Communication channel／Non-discrimination	EIncrease post-training assessments and random checks, establishing a regular retraining system to ensure employees understand anti-discrimination policies and communication channels Enhance employee satisfaction surveys and feedback channels, while strengthening privacy protection for employees and external complainants.
Occupational health and safety management	Occupational safety and health / Compliance management	Establish and improve safety operating procedures, implement hazard identification and risk control measures to reduce accidents and occupational illnesses, ensuring workplace safety and employee health. Set standards for equipment placement and signage, inspect fire safety equipment and locations, and audit on-site equipment periodically.

Driving Supplier Excellence with Sustainability Performance

To encourage suppliers to implement sustainable practices and enhance their sustainability performance, Wistron conducts sustainability performance evaluations of suppliers and implements a preference and exclusion mechanism in accordance with relevant management procedures.

Preference mechanism	Exclusion mechanism
Suppliers with outstanding sustainability performance ratings receive higher order allocations, and are granted opportunities to participate in new projects. They are also recognized and honored as Outstanding Suppliers during the annual Partner Conference.	Suppliers with poor sustainability performance will have their eligibility for new project participation suspended and procurement volumes reduced. Suppliers that fail to make necessary improvements within two years will be removed from the procurement list and disqualified as Wistron suppliers.
2025: 10 suppliers received an Outstanding Supplier Award and 8 suppliers received more Wistron orders for outstanding sustainability performance.	2025: One supplier was placed on the exclusion list due to poor sustainability performance after recurring non-conformities were identified following an RBA audit and implementation of a CAP.

Supplier Sustainability Evaluation

Wistron has set ESG evaluation thresholds for new and existing suppliers. Those applying to be Wistron suppliers are required to sign a Code of Conduct and pass the following four certifications:

Scope	Assessment Tool	ESG Weighting	ESG Assessment Criteria
Sustainability and operation risk management	Business Continuity Management / Sustainability Disclosure	13.33%	Responsible Business Alliance (RBA) Code of Conduct, labor standards, health and safety, environmental standards, business ethics, and management systems
Existing suppliers	Supplier performance evaluation including quality, technology, cooperation, delivery capability, price, and ESG performance	20%	Quarterly review of ESG sustainability activity, ISO 14064-1 certification annual review, ISO 50001 certification annual review, annual ESG sustainability audit score, and major missing events of ESG sustainability on-site assessment

ESG Risk Management and Mitigation Plans

In addition to the existing supplier performance evaluation framework, Wistron incorporates ESG risk management and mitigation plans into supplier assessments, covering three key risk areas:

Capacity Building

Buyer Education Training

To ensure procurement staff (including personnel from buyers, logistics, quality assurance, and other supply chain-related departments) fully understand supplier management and sustainability processes, as well as their roles, Wistron implements systematic training to enhance employees’ expertise in ESG topics. The training covers fundamental human rights issues such as the prohibition of forced labor (including servitude, debt bondage, and human trafficking) and gradually strengthens professional capabilities needed for sustainability management for Wistron’s business scope. Through this training, employees are equipped to drive sustainable supply chain strategies and ensure effective implementation in daily operations and interactions with suppliers. In 2025, Wistron continued to collaborate with the ESG Sphere Course Review Committee to develop a series of ESG-related training modules. A total of 4,157 employees completed the training, amounting to 2,518 hours of learning.

Supplier Education Training

To support suppliers in adopting ESG-aligned strategies and actions in their operations—and to strengthen the overall resilience and sustainability of the supply chain—Wistron continues to offer relevant training through its online supplier education platform. These courses aim to enhance suppliers’ awareness of sustainable development principles and reinforce partnerships with suppliers. In 2025, in addition to the annual mandatory course on the Supplier Code of Conduct, Wistron added two new mandatory courses—RBA Standards on Prohibition of Forced Labor and ISO 37001 Anti-Bribery Management Systems. The former supports suppliers in understanding the importance of RBA human rights issues, while the latter ensure suppliers recognize the key role of ethical management in earning customer trust and advancing sustainability competitiveness. A total of 421 tier 1 suppliers completed online training, representing a 100% training completion rate.

Existing	New
-Annual Course on Supplier Code of Conduct Covers Wistron’s core requirements	-ISO 37001 Anti-Bribery Management Systems Covers the importance of ethical management in advancing sustainability competitiveness -RBA Standards on Prohibition of Forced Labor Helps suppliers recognize the importance of RBA human rights issues

Partner Conference / Sustainability Sharing Forum/Lectures

2025, Wistron focused on the theme of “Make an Impact,” hosting its annual Partner Conference, ESG sharing sessions, sustainability lectures, and various events to strengthen supplier awareness over sustainability and resilience, enhance ESG capabilities, and deepen sustainability partnerships across the supply chain.

Events Scale Description

ESG Sustainability Sharing Forums 302 supplier participants Focused on carbon reduction targets and performance tracking, EPEAT and PFAS management strategies, ISO 37001 anti-bribery, ISO 20400 sustainable procurement, zero-waste-to-landfill initiatives. Case sharing included measurement and verification case studies of energy savings and carbon reduction from lighting and HVAC system upgrades from three benchmark suppliers. Promoted Wistron’s sustainability management, anti-corruption policies, greenhouse gas inventory, and water risk management. Also highlighted industry cases of significant losses from bribery and corruption to raise awareness among suppliers.

Supplier Sustainability Evaluation Lecture 94 participants from 48 suppliers Held on August 26 and September 2 at Zhongshan and Chongqing sites, respectively. Covered ESG policies, sustainable procurement requirements, and performance evaluation criteria. Conducted training on prohibition of forced labor. Included interactive ESG board game Wi-Thrive to enhance engagement and deepen understanding of sustainability topics.

Establishing a segmented supplier carbon management promotion strategy

Starting from 2021, annual greenhouse gas inventory results from suppliers are collected. Upon analysis, it was found that suppliers exhibit varying degrees of capability in carbon inventory and reduction. Consequently, a classification management system has been implemented, categorizing suppliers based on their level of significance (determined by factors such as revenue and material substitutability) and carbon inventory capabilities. Tailored project plans are provided to suppliers in different categories, along with necessary assistance resources, experience-sharing courses, and consulting resources, to ensure their progressive advancement towards carbon neutrality. In 2025, suppliers were encouraged to adopt renewable energy, particularly solar power, optimize manufacturing processes, and improve energy efficiency through facility and equipment upgrades, thereby reducing carbon emissions.

Category	Carbon management strategies for suppliers
I	Conduct greenhouse gas inventory and factory-side self-inventory
II	Third-party verification for scope 1 and scope 2 GHG inventory Scope 3 GHG inventory ISO 50001 energy management system certification for high energy consuming material suppliers Establish a carbon reduction project with an annual reduction of 4.2%
III	Third-party verification for scope 1 and scope 2 GHG inventory ISO 50001 energy management system certification for high energy consuming material suppliers Join the SBTi commitment or set up a 4.2% annual carbon reduction project

Building supplier carbon management sustainability capabilities

Wistron conducted a comprehensive inventory of Scope 3 greenhouse gas emissions, with results indicating that upstream raw material procurement accounts for the highest share of emissions. In response, Wistron launched a carbon management capacity-building program tailored to different categories of suppliers. The program covers carbon inventory training, verification mechanism enhancement, the introduction of Science Based Targets (SBTi) initiative emission reduction targets, and collaborative carbon reduction projects. In 2025, Wistron initiated four carbon management projects and engaged in in-depth collaborations—lasting over six months—with 352 suppliers (including 227 significant suppliers), continuously enhancing the carbon management capabilities of supply chain partners and jointly advancing emission reduction targets.

Categories	Project	Cooperative partner- Significant Suppliers	Details	Benefits & Impacts
I	Carbon Inventory Capacity Building Plan	Tier-1 suppliers	Support suppliers in building carbon accounting capabilities Collect supplier carbon inventories to complete supply chain emission data	Completed carbon inventory data and sustainability survey for 352 suppliers Coverage (by procurement amount): 90.11%
II	High energy consuming material suppliers verification program	High energy consuming material suppliers	Since 2022, we have been consistently expanding our categories, selecting critical high energy-consuming material suppliers to promote ISO 14064-1 and ISO 50001 certification	Out of the 52 suppliers selected for promotion, 50 attained ISO 14064-1 certification, while 43 achieved ISO 50001 certification
	Low carbon transformation promotion plan	High energy consuming material suppliers	Wistron joined government-led low-carbon transition initiatives by leveraging the “big leads small” approach, collaborating with 30 suppliers in total. Among them, Wistron worked closely with 7 suppliers to establish carbon reduction mechanisms and promote low-carbon practices. These efforts included sharing energy-saving technology improvement strategies, commissioning research institutes to conduct supplier energy audits and diagnostics, and establishing project verification mechanisms for energy conservation and carbon reduction. Technical support was also provided to promote industrial energy efficiency improvements and carbon management tools.	We collaborated with seven suppliers to jointly propose energy-saving improvement projects, resulting in a cumulative reduction of 14,344 tCO₂e. Completed carbon inventory and sustainability data surveys for 23 suppliers, serving as a foundation for subsequent evaluation and project analysis Completed the Energy Conservation & Decarbonization Handbook to promote decarbonization among suppliers and extend our influence
	Low carbon transformation promotion plan	High energy consuming material suppliers	Encourage suppliers to conduct energy conservation and decarbonization projects	14 suppliers launched energy conservation and decarbonization projects Total projects: 60/ Total carbon reduction: 43,476 tCO₂e
III	SBTi initiative commits to promote	Suppliers with high carbon inventory maturity	Collaborate with customers to target and encourage suppliers in high energy consuming industries to participate in SBTi and respond to CDP questionnaires	41 suppliers have joined SBTi & 120 suppliers have completed CDP questionnaires

Supplier Circular Economy Project Cooperation

Amidst the global push for a circular economy, Wistron remains committed to safeguarding natural life and forests by fostering communication and collaboration with suppliers. This focus enables the fulfillment of biodiversity and non-deforestation pledges, while also encouraging suppliers to obtain Zero Waste to Landfill certification, and simultaneously reducing the Earth’s environmental burden. Furthermore, it enhances suppliers’ sustainability awareness and capabilities to adapt to evolving sustainability trends.

Supplier Partnership Projects	Details	Qualitative Benefits	Quantitative Benefits
Integrated Resource Utilization (waste diversion/recycling/scrap repurposing)	Eliminates cost of waste disposal Lower waste transportation & disposal fees: Waste to incinerators/landfills significantly reduces from waste diversion (recycling/reuse), directly reducing costs of waste transportation and disposal Lower waste disposal fees: Recycling generally costs less than waste disposal Revenue from resource recovery and sales of renewable resources: Generate non-operating income by diverting and selling recyclable materials with residual value (paper, metals, and selected plastics) which were previously disposed (without sorting) Scrap repurposing program: Convert irregular scrap materials into value-added products by cutting and assembling them into standard paperboard; processing them into cushioning pads, dividers, and small-sized cartons; and shredding unusable scraps for use as recycled paper feedstock	Environmental Benefits - Reduced landfill disposal: Diverts waste from landfills, reducing land use requirements and pollution risks - Lower carbon emissions: Improves resource recovery and conversion efficiency, contributing to the reduction of Scope 3 greenhouse gas emissions - Advances the circular economy: Extends material life cycles through reuse and recycling, reducing demand for virgin raw materials Economic Benefits - Lower waste management costs: Optimizes waste handling processes and reduces treatment and disposal expenses - Enhanced brand value: Achievement of UL 2799 certification enables suppliers to demonstrate environmental performance publicly and strengthen ESG performance Management Benefits - Standardized management processes: UL 2799 provides clear classification and calculation standards, supporting the establishment of consistent waste management systems - Greater transparency and stakeholder trust: Third-party audits and certification help demonstrate sustainability commitments to investors, customers, and the broader public	Waste recycled and reused: 4,465t GHG emissions avoided through Zero Waste to Landfill initiatives: 3,925tCO₂e Direct economic benefits from suppliers: NT$18.5M Number of key suppliers obtaining UL 2799 certification: 20 suppliers
Manufacturing Circularity (wood pallets, regrind materials, and turntables)	Closed-loop pallet system (including repairing damaged pallets for reuse and reducing landfill disposal costs), reprocess and reuse plastic regrind materials, and closed-loop PE turntables
Process Waste Reuse for Tool Production	Use metal/plastic scraps to replace raw materials for tool production

Supplier Partnership Projects

Details

Qualitative Benefits

Quantitative Benefits

Integrated Resource Utilization (waste diversion/recycling/scrap repurposing)

Eliminates cost of waste disposal
Lower waste transportation & disposal fees: Waste to incinerators/landfills significantly reduces from waste diversion (recycling/reuse), directly reducing costs of waste transportation and disposal
Lower waste disposal fees: Recycling generally costs less than waste disposal
Revenue from resource recovery and sales of renewable resources: Generate non-operating income by diverting and selling recyclable materials with residual value (paper, metals, and selected plastics) which were previously disposed (without sorting)
Scrap repurposing program: Convert irregular scrap materials into value-added products by cutting and assembling them into standard paperboard; processing them into cushioning pads, dividers, and small-sized cartons; and shredding unusable scraps for use as recycled paper feedstock

Environmental Benefits

- Reduced landfill disposal: Diverts waste from landfills, reducing land use requirements and pollution risks
- Lower carbon emissions: Improves resource recovery and conversion efficiency, contributing to the reduction of Scope 3 greenhouse gas emissions
- Advances the circular economy: Extends material life cycles through reuse and recycling, reducing demand for virgin raw materials

Economic Benefits

- Lower waste management costs: Optimizes waste handling processes and reduces treatment and disposal expenses
- Enhanced brand value: Achievement of UL 2799 certification enables suppliers to demonstrate environmental performance publicly and strengthen ESG performance

Management Benefits

- Standardized management processes: UL 2799 provides clear classification and calculation standards, supporting the establishment of consistent waste management systems
- Greater transparency and stakeholder trust: Third-party audits and certification help demonstrate sustainability commitments to investors, customers, and the broader public

Waste recycled and reused: 4,465t
GHG emissions avoided through Zero Waste to Landfill initiatives: 3,925tCO₂e
Direct economic benefits from suppliers:

NT$18.5M

Number of key suppliers obtaining UL 2799 certification: 20 suppliers

Manufacturing Circularity (wood pallets, regrind materials, and turntables)

Closed-loop pallet system (including repairing damaged pallets for reuse and reducing landfill disposal costs), reprocess and reuse plastic regrind materials, and closed-loop PE turntables

Process Waste Reuse for Tool Production

Use metal/plastic scraps to replace raw materials for tool production

Supplier capability building KPI

Supplier audits and support: 283 significant suppliers were audited and 100% of them implemented corrective actions within the designated time for any deficiencies found;
Supplier training: 100% of the 232 significant tier 1 suppliers completed mandatory online courses (Supplier Code of Conduct, RBA Standards on Prohibition of Forced Labor, and ISO 37001 Anti-Bribery Management);
Supplier capacity building in carbon management and circular economy projects: Promoted carbon management to 227 significant suppliers and circular economy to 20 suppliers through six months of in-depth collaboration, with a capacity building success rate of 81.98%;

Wistron provided support to significant suppliers for the implementation of corrective action against deficiencies found in audits as well as education and training for capacity building with carbon management and circular economy projects, with a 100% coverage rate.

KPI		2025 Performance		2025 Targets
Corrective Action/Improvement Plans		100% (No. of significant suppliers: 283)		100%
Supplier Education Training		100% (No. of significant tier 1 suppliers: 232)		100%
Capacity Building	Carbon Management	227 significant suppliers	81.98%	60%
Capacity Building	Circular Economy	20 significant suppliers	81.98%	60%

Green Supply Chain Management

A green, transparent, and circular supply chain encompasses all the essential elements of a modern sustainable supply chain. Wistron’s green supply chain management covers the following:

Green Design: Incorporates RoHS standards (Restriction of Hazardous Substances) at the design stage to ensure environmental compliance. Wistron products comply 100% with RoHS and REACH regulations across all countries and 100% of suppliers have signed supplier hazardous substance declarations.
Green Procurement: In accordance with green design requirements, priority is given to procuring green materials, including products and suppliers with green label and energy-efficiency certifications, to reduce environmental impacts.
Green Manufacturing: Partners with low-carbon suppliers to implement carbon reduction strategies and promote sustainable production. In 2025, 21 suppliers participated in carbon reduction projects, with 20 suppliers achieving Zero Waste to Landfill certification.
Green Packaging: Reduces and reuses packaging materials while ensuring reliability. Prioritize suppliers with Forest Management (FM) and Chain of Custody (CoC) certifications for shipping materials to ensure sustainable sourcing. 100% of Wistron’s key packaging suppliers are FSC-certified.
Green Transportation: Utilizes low-emission, energy-efficient, and smart logistics solutions to support carbon reduction. In 2025, the Vietnam site reduced truck trips by 6,164, reducing trips by 1.29 million kilometers and approximately 76% of emissions.
Green Recycling: Promotes the use of sustainable materials. Low-carbon notebooks contain 40.2% PCR material, and 96% of packaging materials are recyclable or reusable; while server products utilize 90% recycled steel (SGCC).

These measures ensure that every stage of the green supply chain helps mitigate environmental impacts and supports the company’s progress toward sustainable development goals.

Supply Chain Sustainability Management

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