Stakeholder Communications

Material Topics

In order to understand the extent to which stakeholders are concerned with WIN's sustainability issues, we have followed the GRI Standards guidelines and the criteria for AA1000SES stakeholder engagement to compile these issues, so that we can understand their economic, environmental and social impacts. This information serves as the basis for the analysis of material topics. A total of 13 major themes were identified in the current year, including 13 GRI indicators.

Identification Procedures for Material Sustainability Topics

Result of Analysis of Material Topics

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Communication with Stakeholders

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This information serves as the basis for the analysis of material topics and the results were reported to the Board of Director at the end of each year. Below please see the stakeholder engagement of the Company:

Stakeholder Issues of Concern Communication Frequency and Method Communication Achievements
Customers 1.Customer privacy
2.Customer health and safety
3.Environmental compliance
Irregular:Video conference, visiting customers and on-site audit by customers
Annual:Customer satisfaction questionnaire survey
Contact: Ms. Chen
E-Mail: wincsr@winfoundry.com
1. Customer satisfaction surveys produced an average satisfaction score of 88.7
2. Customer visits and accepting on-site audits by customers
Employees 1.Employment
2.Diversity and equal opportunity
3.Business performance
Irregular:Website portal, project satisfaction survey and sexual harassment grievance hotline & email
Quarterly:Employee/employer meeting, foreign labor seminar and meetings of the Employee Welfare Committee
Contact: Ms. Chen
E-Mail:investigating.office@winfoundry.com
1. Health promotion seminars were attended by 448 employees
2. Annual medical check-ups produced an average satisfaction score of 9.48
Suppliers/contractors 1.Customer privacy
2.Business performance
3.Anti-corruption
Irregular:On-site audit of suppliers, and communicate with suppliers via telephone or email
Annual:Supplier/contractor assessment on environmental protection and safety and health management systems and performance
Contact: Ms. Chen
E-Mail:wincsr@winfoundry.com
Ratio of new suppliers that signed the WIN Supplier Code of Conduct reaches 100%
Government authorities 1.Waste
2.Customer health and safety
3.Environmental compliance
Irregular:Official documents, and participation in seminars and conferences held by government
Monthly:Reporting required information via the Market Observation Post System (MOPS)
Contact: Ms. Chen
E-Mail:wincsr@winfoundry.com
Participation in government seminars or conferences
Shareholders/investors/
financial institutions/
creditors
1.Business performance
2.Employment
3.Labor/management relations
Irregular:Investment institution conference and telephonic response to investor/media questions
Quarterly:Investor conference and financial report
Annual:Annual report and shareholders' Meeting
Contact: Mr. Tsen
E-Mail: ir@winfoundry.com
1. Held 23 investor-related activities, including ones for explaining the Company's operating status
2. Spokesperson responded to shareholders’ questions on an irregular basis
General public/
non-government organizations
1.Waste
2.Emissions
3.Charitable event
Irregular:Participation in charity events and industry-university collaboration
Contact: Ms. Chen
E-Mail:wincsr@winfoundry.com
Held a total of 6 charitable activities and industry-academia collaborations, including environmental protection, talent development, and giving back to the society

WIN's Strategy and Risk Assessment
Item for Material Topics

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Material Topics Materiality to Operations Management Approach Objectives Current Conditions
Economic performance An effective business strategy is key to maintaining a healthy capital foundation that maintains investor, creditor, and market confidence, supports future operations and development, and maximizes benefits for customers, suppliers, and employees. .Maintain a healthy capital foundation to support future operations and development
.Corporate governance implementation
.Expansion of product applications in other sectors
.Investment of more resources in technology innovation, quality improvement, and reduction of manufacturing cost
2030 objectives:
Continue to enhance product development, invest in process technologies, and maintain our leadership position
Progressing toward objectives
Anti-corruption "Integrity and accountability" constitute one of WIN's core values. We uphold corporate governance principles and require members of the governance unit and company employees to uphold high moral standards and implement ethical management. We prohibit any behavior that may damage WIN's reputation or interests in order to achieve sustainable development. .Formulated 7 relevant policies and regulations
.Promote the Company's core value of "integrity and accountability” during training courses for new employees
.Promote the policy of integrity to employees at the end of each year
.Set up an independent mailbox for whistleblowing
2030 objectives:
1. 0 penalties for violations of the ethical corporate management policy by Company employees
2. Employee response rate to questionnaires on the ethical corporate management culture and policy reach 100%
Progressing toward objectives
Emissions The climate affects the coexistence of humans and other species on Earth, and indirectly affects companies' sustainable operations and management strategies, impacting operations. WIN has adopted a corporate sustainable development philosophy that supports environmental protection and green production and we continue to supervise or improve emissions reduction measures for energy management, greenhouse gases, air pollution control, water resource management, and waste management. We implement these measures and work hard to reduce the impact of production on the environment. .Establish annual PFCs management objectives to review the performance in quarterly management and review meetings
.Future local scrubbers for PFC emissions removal in new production lines will all be equipped with models that achieve 90% or higher PFCs removal efficiency. Existing production lines will undergo assessment and be gradually replaced or upgraded
2023 objectives::
1. Reduce PFCs emissions (ton CO2e /6”e wafer) by 20% from 2018 to 0.182
2. VOC emission removal efficiency > 90%
Progressing toward objectives
Energy .Prioritize high-efficiency and low-energy consumption models for replacement of equipment
.Establish annual energy conservation management objectives to review the performance in quarterly management and review meetings
2023 objectives:
Reduce electricity consumption (kWh/6"e wafer) by 0.5% from 2018 to 518.51
Progressing toward objectives
Waste .Reduce the use of raw materials in production
.Increase the recycling rate of waste solvents
2023 objectives:
Reduce waste solvent volume (kg/6"e wafer) by 5% from 2018 to 15.64
Progressing toward objectives
Water and effluents .Source reduction
.Water recycling and reuse
.Water pollution prevention
.Process acid and alkali wastewater recycling system
.Process chemical mechanical polishing wastewater recycling system
2023 objectives:
Reduce water consumption (m3/6"e wafer) by 5% from 2018 to 3.27
Progressing toward objectives
Supplier environmental assessment Suppliers are important partners to WIN's sustainable development. To strengthen our partnership with suppliers, improve their quality, and reduce the supply risk of our supply chain, helping our suppliers understand and establish sound sustainable operations is critical to our long-term operations. .Regulations established: WIN Supplier Code of Conduct
.Risk assessments: Risk assessment based on the supplier rating table
2030 objectives:
Completion of the sustainability management self-assessment by 100% of suppliers of direct materials
Progressing toward objectives
Supplier social assessment .Supplier evaluations: Evaluate supplier performance each year
.Management of ongoing improvements: Request continuous improvement based on the results of performance assessments
2030 objectives:
1. 100% of materials used for producing wafers is sourced from mines in non-conflict areas
2. Completion of the sustainability management self-assessment by 100% of suppliers of direct materials
Progressing toward objectives
Employment Human resources are our most important asset, as well as the driving force behind our growth. To fulfill our CSR and reduce human rights risks, we provide employees with a friendly workplace. We prioritize employee development with ample benefits, provide employees with communication and complaint channels to offer feedback, and are actively improving the overall work environment. .Offer competitive salaries, training programs, and incentives
.Remuneration policy: No different treatment on the basis of such factors as gender and gender identification, age, race, religion, political affiliation, marital status or sexual orientation
.Establishment and implementation of human rights management guidelines: Prohibit forced labor, ban child labor, non-discrimination, respect for freedom of association, respect for privacy, pay attention to employee health, and prioritize safety in the workplace
2030 objectives:
A 5% to 10% employee turnover rate
Progressing toward objectives
Employee diversity and equal opportunity 2030 objectives:
Ratio of female senior managers: 15%
Progressing toward objectives
Human rights assessment 2030 objectives:
No serious law violations (fines higher than NT$1 million)
Progressing toward objectives
Occupational health and safety Significant amounts of chemicals and machines that pose high risks are involved in the production of semiconductors. Safety and health management is of the utmost importance. Through the operations and promotion of the management system, we effectively reduce risks of potential hazards, prevent accidents, protect the physical and mental health of workers, and protect the Company's assets and operations. .Use education materials to strengthen employees' awareness of correct and safe conduct at work .Convene quarterly meetings of the Occupational Safety Management Committee to discuss and review related issues, prevent accidents, and promote health .Implement the occupational health and safety policy 2023 objectives:
Zero significant occupational disasters
Progressing toward objectives
Training and education We established a comprehensive training and development system to improve employees' professional skills and satisfy requirements for growth. .Systematically integrate internal and external resources to provide a complete talent development strategy and cultivate and improving employees' skills and capabilities
.Implement the performance management and development system to review, analyze and measure employees' skill development and create the optimal organization and personal performance
2030 objectives:
1. A 100% completion rate for learners of the engineering training roadmap
2. A 60% usage rate of the non-compulsory resources of the WIN Learning platform
Progressing toward objectives

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