• About Quanta
  Company Profile Executives Organization Structure Company Information News
  Awards & Accomplishments Key Milestone Global Major Operating Sites
• Investor Relations
  Financials Annual Reports Shareholders Services Shareholders' Meeting
• Corporate Governance
  Corporate governance organizational structure Board of Directors Functional Committee Internal Control System Risk Management

  Major Internal Policies Top Ten Shareholders
• ESG
  ESG Sustainability Policies Latest Sustainability Report Stakeholder Communication and Grievance Mechanisms
• Products
  Notebook Server Camera Smarter Healthcare Security Advisory
• Subsidiaries/Affiliates
  QSMC QCT Quanta Storage Inc. RoyalTek International Quanta Culture & Education Foundation Quanta Arts Foundation

Stakeholders Communication

Stakeholders Communication

• Stakeholder identification was performed by the five main principles of AA1000 Stakeholder Engagement Standards (2015), namely responsibility, influence, tension/attention, dependency and diverse perspective. Using the above principles, members of the CSR Committee Evaluation Panel and representatives had identified shareholders and investors, customers, suppliers, employees, and government as Quanta's key stakeholders.
• To strengthen communication and engagement with stakeholders and to ensure the achievement of our objectives, Quanta's ESG Committee regularly communicates and discusses major issues, target achievements, and strategic directions from the aspects of economic, social, and environment. The committee would consolidate relevant data, outcomes of stakeholder engagements, and ESG recommendations, which are then reported to the Board of Directors for approval and execution.
• The most recent report-out took place on February 26, 2026. The communication status and reporting details for each stakeholder category are as follows:

Stakeholders	Important topics and aspects	Communication means and channels
Shareholders and investors	Energy and Greenhouse Gas Emissions Risk Management Sustainable Strategy Ethical Business Practices	Stakeholder questionnaire Annual general shareholders’ Meetings Conduct conference calls and press conferences for institutional investors to announce quarterly financial reports and operational information every quarter Disclose material information in real time on both the Market Observation Post System (MOPS) and the Company’s website, and, as necessary, issue press releases or hold press conferences to provide further explanations Set up e-mail and telephone number as ways of contact on the official website of the Company A dedicated corporate IR (Investors Relations) department has been created To hold face-to-face meetings or telephone conferences with domestic and overseas institutional investors on a regular basis Contact info： https://www.quantatw.com/Quanta/english/service/contact_ir.aspx
Customers	Energy and Greenhouse Gas Emissions Occupational Health and Safety Privacy Management Ethical Business Practices Sustainable Strategy	Stakeholder questionnaire QBR (Quarterly Business Review) Customer satisfaction survey Participate from time to time in various technology forums, seminars, and speaking engagements Meet customers’ requirements and inspections on product quality, environment, and responsibility; cooperate with customers on prevention and improvement PIS (Proprietary Information Security)– Advocacy and training of the rules governing employees in situations when confronted by press Regular meetings with the client's corporate social responsibility team to explain ESG strategies and progress Publicly disclose environmental protection information on CDP Accept RBA third-party audit and respond to customer expectations with actual audit results EU WEEE producer registration:Link Contact info： https://www.quantatw.com/Quanta/english/service/serviceinfo.aspx
Suppliers	Ethical Business Practices Occupational Health and Safety Privacy Management Sustainable Strategy	Stakeholder questionnaire Request to Sign the Letter of Commitment to Environmental Protection Require products to pass testing by an accredited third-party laboratory Incoming material inspection: random sampling sent to Quanta GP Laboratory for testing Quanta Green Website Quanta Auxiliary Materials Environmental Protection Website Green supply chain annual convention Annual audit of suppliers and contractors Corporate Social Responsibility Annual Training Course Contact info： https://www.quantatw.com/Quanta/english/service/contact_purchase.aspx
Employees	Occupational Health and Safety Ethical Business Practices Information Security Management Sustainable Strategy Human Resource Management	Stakeholder questionnaire Supervisors and staff hold communication meetings from time to time Provide “70885 - please help me” staff service hotline and message bulletin "Quanta Wechat Account" - online consultation for employees' queries Provide “70695–please try to understand me” Complaint of sexual harassment hotline and mailbox "70345" - complaint hotline for employees Equipped with on-site medical care staff to provide employees with medical consultation services Free annual health examination and consultation for employees Quanta Elite School provides five major ELITE programs based on different job functions to provide occupational training, development and feedback Employee satisfaction survey Release quarterly magazine and manage regularly the information sharing platform each month “Employee Assistance Program” personnel available at all production sites to provide instant support and feedback Conduct Labor-management Conference Conduct Welfare Committee Conference Contact info： https://www.quantatw.com/Quanta/english/service/contact_hr.aspx
Government	Information Security Management Ethical Business Practices Energy and Greenhouse Gas Emissions Occupational Health and Safety	Handle both regular and ad hoc filings and disclosure tasks, including official correspondence responses and the submission of materials for seminars Coordinate with and respond to policy initiatives and promotional activities led by the government and competent authorities (e.g., the Ministry of Environment, Ministry of Labor, and Ministry of Economic Affairs) Participate in relevant external collaboration and exchange activities to maintain consistency between policy and practice in communication Respond promptly to filing requests from securities regulators and complete regular and ad hoc announcements, questionnaires, and operating status briefings Disclose information via the Market Observation Post System (MOPS) and the Company’s official website, and issue press releases or hold briefings as needed to provide external explanations Contact info： https://www.quantatw.com/Quanta/english/service/serviceinfo.aspx

• Note: The communication channels listed above reflect each unit’s respective responsibilities and planned activities. Except for the surveys conducted to determine material topics, none of the above activities were carried out specifically for the preparation of this report.