Stakeholders Communication

ChipMOS values stakeholders of all types and firmly believes that the first and most important task in achieving sustainable growth is to build positive relations with stakeholders in order to receive more trust and support, which will effectively assist our business operations and sustainable development.

■ Stakeholders contact person: Contact US

■ We welcome your valuable comments and suggestions.

Keep in Touch with US - ChipMOS ESG Commitee

◆Phone: (+886)3-5770055
◆E-mail: ChipMOS_CSR@chipmos.com
◆Stakeholders Questionnaire

ChipMOS Stakeholder

We define stakeholders as "internal and external groups or organizations that will affect or be affected by ChipMOS". Through the annual ESG Committee meeting, we gather the suggestions of all members, and discuss the same according to the Company's sustainability context, industrial characteristics and practical experience, and with reference to the five major principles of the AA1000 SES-2015 Stakeholder Engagement Standard (SES) (Dependence, Responsibility, Influence, Diverse Perspectives and Tension), and identify six types of stakeholders by voting: Shareholders, Customers, Employees, Suppliers, Government and Community groups.

Status of Communication (Presented to the Board of Directors on 2026/8/11)

Stakeholder	2025 Main Topics of Concern	Communication Channel/ Frequency	2025 Communication Effectiveness
Shareholders	Product Quality Corporate Governance Energy and Resource Efficiency Diversified Products Climate Governance Risk Management	• Financial Reports (Quarterly) • Earnings Conferences (Quarterly) • Annual Reports (Annually) • Annual General Meeting (Annually) • Market Observation Post System (As needed) • Sustainability Report (Annually) • Corporate Website, Social Platforms (As needed)	• Convened 7 institutional meetings (shareholders meeting, quarterly earnings conferences, investor briefings) and issued 36+ material disclosures on corporate strategy and operations. • Released 88+ localized updates via corporate website and social platforms to communicate sustainability milestones on an as-needed basis. • Maintained a 5-year average ROE (2021-2025) ≧ 10%, with FY2025 ROE at 2.02%.
Customers	Product Quality Climate Governance Talent Development and Training Recruitment and Retention Customer Service Energy and Resource Efficiency	• Customer Satisfaction Surveys (Annually) • Sustainability Report (Annually) • Dedicated Customer Service & QA Contact (Permanent) • Customer Audits (As needed) • Business Meetings (As needed) • Corporate Website, Social Platforms (As needed)	• Maintained 100% third-party certifications for ISO 9001, IATF 16949, ISO 26262, IECQ QC080000, ISO 17025, and ISO 27001. • Achieved an overall score of 4.19 / 5.00 on the annual Customer Satisfaction Survey, meeting all expectations across quality, technology, hazardous substance management, delivery, and service. • Recorded 0 validated customer complaints regarding cybersecurity or data privacy breaches.
Employees	Corporate Governance Product Quality Employee Compensation and Benefit Energy and Resource Efficiency Diversified Products Healthy and Safe Workplace	• Production Line Meetings (Monthly) • Labor-Management, Welfare Committee Meetings (Quarterly) • ESH and Energy Management Committee Meetings (Quarterly) • Chairman's Mailbox, Employee Hotlines (Permanent) • Intranet, Physical Bulletins (Permanent) Chairman's Town Halls, Supervisor Luncheons (As needed) • Corporate Website, Social Platforms (As needed) • Employee Satisfaction Surveys (Quarterly) • Human Rights Due Diligence (Regular)	• Conducted 49 internal meetings (Labor-Management, Production Line, EHS, Employee Welfare, and Philippine Employee Monthly Meetings). • Completed 653 care interviews for new hires, transfers, and project staff. • Published 4 Sustainability newsletters. • Published 4 Climate newsletters (focusing on climate change, AI, energy saving, and resource reuse). • 2025 Launched 1st Employee Satisfaction Survey: Achieved an average score of 4.08/5. • 2025 Initiated 1st Human Rights Due Diligence Survey: Reached 55% response coverage.
Suppliers	Product Quality Healthy and Safe Workplace Corporate Governance Energy and Resource Efficiency Climate Governance	• Supplier evaluation (quarterly) • Supplier on-site audit (annually) • ESG Report (annually) • Purchase/ Q.R.A./ ESH Dedicated Person (normal) • Supplier meetings and surveys (irregularly) • Company website, social media (irregularly)	• 100% CSR Compliance: 285 key suppliers signed the CSR Statement of Commitment. • Ongoing Oversight: Provided supplier coaching and conducted regular desk evaluations & site visits. • 65 suppliers completed RBA audits with an average compliance rate of 99%. • Continuously and actively encouraged suppliers to obtain international certifications • Surveyed 144 Tier-1 suppliers (covering 89% of spend) on climate & water management, alongside encouraging international certifications.
Governments	Product Quality Energy and Resource Efficiency Climate Governance Talent Development and Training Climate Change Management Corporate Governance	• MOPS (regularly) • Pollution Prevention Disclosures (Regular) • Sustainability Report (Annually) • Government Inspections (As needed) • Official Correspondence, Emails, Meetings (As needed) • Corporate Website, Social Platforms (As needed)	• 1 Environmental Penalty: Exceeded Effluent Standard Limits in 2025. • Completed routine regulatory filings per government requirements. • 100% Raw Material Compliance with International & Green Product Regulations. • Actively joined government initiatives, including: - Workforce Development Agency Semiconductor Talent Matchmaking Event. - Green Factory Label & Green Procurement. - Coastal cleanup adoption, air quality purification zones, and public toilet adoption programs..
Community Groups	Energy and Resource Efficiency Climate Governance Talent Development and Training Water Management Product Quality	• ESG Report (Annually) • Dedicated Employee Relations, General Affairs Contact (Permanent) • NGO & NPO Engagements (As needed) • Community Investment, Corporate Volunteering Activities (As needed) • Corporate Website, Social Platforms (As needed)	• Financial Investment: Contributed NT$ 24,542,132 in social participation. • Supported rural schools and vulnerable groups, benefiting over 4,773 participants • Total volunteer engagement reached 22,630 participants.