Universal Scientific Industrial

To respond to issues that are high stakeholder concern, we communicate with our stakeholders through various platforms on our sustainable development strategies and progress to maintain and strengthen our relationships. Issues identified as non-material will also be disclosed in their respective chapters to maintain report continuity.

Shareholders/Investors/Banks

Focus Issues	Communication Channel (Frequency)	2025 Performance
Risk & Crisis Management Sustainable Supply Chain Innovation Management Data Privacy Green Products Occupational Health & Safety	Investor briefings (quarterly) Board meetings (semiannually/non-periodic) Annual general meeting (yearly/non-periodic) Quarterly/semiannual/annual report (periodic) Investor Relations on USI website (all the time) SSE e-interaction (all the time) Receptions, visits, and roadshows (non-periodic) Other interim announcements (non-periodic)	Held quarterly online investor briefings to explain USI's overall business operation status and strategies. Held 6 board meetings. Held 2 shareholders' meetings to explain our performance, investment plans, and respond to investors' concerns. Published quarterly/semi-annual/annual financial reports that analyze USI's business performance on the SSE website. Joined broker strategy meetings and hosted investor visits. Signed a MOU with SHP, launching USI Vietnam Phase 2 expansion that includes a full production line (100,000 units/month) for 800G/1.6T silicon photonics optical modules, encompassing optical engine manufacturing, module assembly, and end-of-line testing capabilities. Acquired new facility in the Taichung Precision Machinery Park to expand Nantou Facility's production capacity and enhance customer service coverage.

Customers

Focus Issues	Communication Channel (Frequency)	2025 Performance
Customer Relations Sustainable Supply Chain Sustainable Production Risk & Crisis Management Information Security Management Occupational Health & Safety	Customer satisfaction questionnaire (quarterly) Online platform (all the time) After-sales service system (all the time) Mailbox (all the time)	Conducted quarterly customer satisfaction surveys, reaching an average satisfaction score of 86.3. Reported Self-Assessment Questionnaire assessment results through an online platform. Constantly monitored product Return Merchandise Authorization (RMA) status through the eRMA system. No product recalls, and 100% customer complaints resolution rate. Responded to customers' green product needs and requirements with 100% compliance with international safety standards/environmental regulations or energy-saving requirements. Enhanced customer confidence through continuous implementation of NIST CSF maturity assessments and strengthened cybersecurity management capabilities. Continued cybersecurity awareness training to strengthen employees’ information security awareness. In 2025, the information security training completion rate reached 100%. Partnered with global customers to co-develop solutions for emerging AI‑era miniaturized manufacturing challenges, demonstrating cross‑disciplinary, system‑level miniaturized packaging capabilities with tangible results. USI integrated vacuum printing encapsulation with high–aspect ratio (>1:3) copper pillar mass transfer and applied these innovations to capsule endoscopy modules and high heat‑dissipation power modules for mobile devices.

Employees

Focus Issues	Communication Channel (Frequency)	2025 Performance
Occupational Health & Safety Data Privacy Human Rights Customer Relations Talent Attraction & Retention	Employee Welfare Committee/labor–management meetings (quarterly) General Manager Symposium (quarterly) Internal publications (quarterly) Staff congress (yearly) Employee engagement survey (biennial) Official social media accounts (all the time) Company Intranet (all the time) Announcement (all the time) Training programs (non-periodic)	Convened regular labor–management meetings to co-plan welfare programs and initiatives. Organized 316 employee activities and 371 occupational health & safety training sessions during the year, integrating employee well-being and professional health support. Communicated benefits and activities through the Employee Relations Network on the company intranet and enabled feedback through a digital Employee Suggestion Box. Received 6,516 submissions with 99.9% resolved and effectively addressed. Hosted General Manager Symposiums where executive management shared corporate vision and addressed employee concerns, complemented with internal departmental meetings to ensure effective feedback. 140 communication sessions were conducted throughout the year. Published usinsight quarterly newsletter and leveraged internal platforms to share management insights and industry trends, strengthening alignment with company vision. Conducted periodic anonymous engagement surveys to capture authentic feedback and optimize talent development and retention strategy. In 2025, the survey achieved a 96% valid response rate, and an 83% engagement score. Implemented annual salary adjustments aligned with USI's compensation framework, referencing regional salary surveys and living wage standards to ensure compensation exceeded regulatory minimums while providing equity incentive schemes to reward high-performing employees. In 2025, USI introduced differentiated salary increases across global facilities (Vietnam: 7.0%, Mexico: 4.0%~15.0%, Nantou: 3.0%~4.2%, Mainland China: 0.1%~10.3%) to maintain market competitiveness and talent retention. Offered a wide range of periodic training programs to enhance employee professional skills and employability, reaching an average of 43.8 training hours per employee.

Suppliers/Contractors

Focus Issues	Communication Channel (Frequency)	2025 Performance
Occupational Health & Safety Customer Relations Risk & Crisis Management Data Privacy Information Security Management	Quarterly business review (quarterly) Supplier evaluation (yearly) Questionnaire investigation for suppliers (yearly) Supplier sustainability conferences (yearly) Purchase contracts/Conducts (in contract period) Training of suppliers (non-periodic) On-site audit for suppliers (non-periodic) Business meetings (non-periodic)	Held 25 Executive Business Reviews with material suppliers and hosted 25 new product and technology presentations. Evaluated 39 new suppliers with a 95% approval rate, onboarding them as approved vendors. Surveyed suppliers to assess status and perspectives and collected 495 supplier responses. Hosted Sustainable Supply Chain Webinar (Greater China) to promote ESG supplier requirements and share future goals. Engaged 388 supplier partners in the webinar. Required suppliers to sign the Supplier Code of Business Integrity and Supplier's Commitment to Corporate Social Responsibilities in addition to business contracts. Utilized Green Parts Aggregations & Reporting System to drive green sourcing, responsible sourcing of raw materials and ensure compliance with product regulations. Trained 1,091 contractors on occupational health & safety. Selected 110 suppliers for document review and on-site sustainability audits. Mentored 1 supplier to establish GHG and product carbon footprint systems (ISO 14064-1 and ISO 14067).

Schools/Academic Institutions

Focus Issues	Communication Channel (Frequency)	2025 Performance
Human Rights Occupational Health & Safety Talent Attraction & Retention Human Capital Development Green Products Waste Management	Briefings/seminars/forum/project collaboration (non-periodic)	Partnered with Soochow University to establish the USI (Kunshan) Intelligent Manufacturing Innovation Center, driving smart upgrades in communications and automotive electronics. Delivered 28 talks through USI University (USIU) internal lecturers to share expertise, industry trends, and insights with universities and industry peers. Provided internships to 129 students to bridge academic learning and practical experience and conducted 2 research projects in collaboration with university professors.

Government & Industry Unions/Associations

Focus Issues	Communication Channel (Frequency)	2025 Performance
Occupational Health & Safety Water Management Waste Management Energy Management Social Involvement	Official document (non-periodic) Briefings/public hearings/seminars/forum (non-periodic) Industry conferences/member meeting (non-periodic)	Complied with all local regulations with no major violations. Disclosed operational performance and strategic direction from time to time. Invested in R&D talent to advance energy-saving and carbon reduction innovations. Offset emissions via green energy certificates, achieving 88% renewable energy usage across our operations. Implemented Reduce, Reuse, Recycle practices to minimize waste and achieved 92% non-hazardous waste recycling rate. Increased process water recycling to lower consumption and mitigate water risks. Reached 65% recycling rate. Engaged with regulators and industry associations through briefings, hearings, and forums. Participated in 48 external organizations and events.

Communities (NGOs and the Media)

Focus Issues	Communication Channel (Frequency)	2025 Performance
Social Involvement Data Privacy Occupational Health & Safety Human Rights Sustainable Supply Chain Air Pollution Control	USI Website/Email/Phone/Press release (all the time) Community activities (non-periodic)	Reviewed and implemented environmental protection, occupational health & safety SOP to minimize negative environmental impact. Maintain strong community relations with local residents through established communication channels. Reduced emissions through continuous improvement initiatives. USI has not been sanctioned for any significant air pollution. Conducted 100 philanthropic activities to strengthen engagement and relationships with local communities.