PSMC is a professional wafer foundry company that commits to adhering to the following occupational safety and health as well as environmental protection principles and guidelines. We actively communicate and consult with internal and external stakeholders, including employees, customers, suppliers, and contractors, on the development and implementation of our safety, health, and environmental policies. This policy applies to PSMC operations, suppliers, and partners, aiming to create a better living environment for workers and the broader society, while fulfilling our corporate social responsibility.

1. To comply with or exceed relevant occupational safety and health laws and international standards, with the ultimate goal of achieving zero accidents and a healthy workplace.
2. Managers at all levels commit to providing necessary resources and implementing daily safety and health management, while all personnel fulfill their safety and health responsibilities, ensuring the suitability, sufficiency, and effectiveness of the management system to build an inherently safe and excellent working environment.
3. Through risk and opportunity assessments related to safety and health, and by adopting advanced safety and health technologies, we establish quantifiable improvement goals and plans, continuously reviewing and reducing the risk impacts of various operations or activities to enhance the physical and mental health of workers, eliminate foreseeable hazards and losses.
4. We actively communicate, consult, and involve internal and external stakeholders in decision-making, continuously reviewing and improving to enhance the safety and health management performance of the company and its supply chain.
5. We promote safety and health education and awareness, encourage active participation in related activities, and deepen workers' understanding, responsibility, and habits towards safety and health, aiming to establish a culture of total participation in safety.

1. To comply with or exceed environmental laws, regulations, and international conventions, and strive to become a low-carbon, green energy, and net-zero emissions enterprise.
2. Managers at all levels commit to providing necessary resources and implementing environmental management, ensuring the integration of the environmental management system into the company's operations, controlling environmental risks, and establishing an environmentally friendly corporate culture.
3. In response to climate change mitigation and adaptation issues, we assess related risks and opportunities, implement energy-saving and carbon-reduction measures, and reduce the impact of extreme climate environments.
4. We set proactive environmental management targets and objectives, continuously improving performance in energy and resource consumption, waste management, circular economy, pollution prevention, and biodiversity conservation. We work together to establish a green supply chain from design to manufacturing, products, and services, reducing the negative impact of operations on the environment.
5. We introduce environmentally friendly technologies and apply them to all operating activities to reduce environmental burdens throughout the life cycle so as to achieve a green manufacturing system among design, production, and management.
6. We promote environmental risk assessment and management training, ensuring that employees understand the impact of their work activities on environmental safety and health, enhancing their environmental awareness, and encouraging them to take action and fulfill their responsibilities.
7. We share knowledge and experience with all employees and stakeholders, promoting environmental protection and climate change awareness through cooperation with operational partners, academia, government, and the general public, addressing the challenges of environmental protection and climate change, and enhancing understanding of environmental management policies and the impact of operations on the environment.

The Board of Directors serves as the highest-level governing unit for this policy, while the Safety, Health, and Environmental Protection Committee is responsible for overall guidance and supervision. The Risk Management Department drives the achievement of safety, health, and environmental protection goals and performance improvement. The scope of application includes research and development, production and operations, products and services, transportation and logistics, waste management, as well as due diligence investigations prior to mergers and acquisitions.

PSMC is committed to creating a safe, healthy and friendly workplace environment for our employees, suppliers/contractors and other business partners, and strictly complies with international standards and regulations related to occupational safety and health. PSMC has established an inhouse ESH Management System in accordance with the ISO 14001 Environmental Management System and the ISO 45001 Occupational Safety and Health Management System, covering all of the Group's plants, which includes all employees and non-employee workers, with a coverage rate of 100% .

PSMC adopts the "Environmental Safety and Health Policy" as the supreme guiding principle for its ESH management system. The Safety, Health, and Environmental Committee, chaired by the President, serves as the highest deliberative body of the ESH management framework. This committee convenes quarterly meetings to review and revise management plans, as well as to evaluate the achievement of objectives aimed at preventing and reducing health, safety, and hygiene risks. Through these regular sessions, the committee continuously promotes improvement and ensures that the company’s ESH practices evolve in line with emerging challenges and regulatory expectations.
To guarantee that the ESH management system complies with all pertinent legal and regulatory requirements, PSMC has established an Internal ESH Audit Team composed of internal auditors specialized in environmental, safety, and health matters. Guided by the “Internal ESH Audit Operations Management Regulations” and the “Procedures for the Certification and Registration of Internal ESH Auditors,” the audit team conducts the internal audits of the entire ESH system every six months. Simultaneously, the company commissions external firm LRQA (Laurent Quality Assurance) to audit the overall operation of the environmental, safety and health management system to verify its effectiveness. The ISO14001 certificates for each Fabs are valid from June 26, 2024 to August 24, 2026, and the ISO45001 certificates are valid from June 26, 2024 to August 5, 2026.

PSMC has established the headquarters and each plant area (P1/2, P3, P5, 8A, 8B) safety, health and environmental protection committees in accordance with the management system and laws, and regularly held safety, health and environmental protection management review meetings to discuss environmental safety and health related matters, and legally elected labor representatives to participate in the meeting discussions, so that employees can fully understand the company's environmental safety and health operation model and provide a formal discussion and research channel. The Risk Management Department and each plant area's risk safety and environmental protection department plan the overall environmental safety and health related business according to the resolution of the management review meeting, and are responsible for planning and promoting various safety and health businesses such as environmental safety and health related audits, verifications, risk assessments, and education and training.

In order to control the possible environmental, safety and health risks existing in business activities or product production processes, through process/activity hazard identification and risk assessment, PSMC has identified related environmental safety and health risks and formulated countermeasures in advance to effectively reduce the risks caused by a variety of operations or activities. Individual departments must examine the contents of their operations or information about the activities they are engaged in based on the scope and procedures of related processes/activities, including activities of contractors and visitors in plant areas, and EHS issues arising in the process when products are delivered to customers. Next, the departments must take inventory of the raw materials, parts, cleaning supplies, and personal protective equipment they use, summarize the information about the wastewater/exhaust/waste, etc. they produce, and fill out the Department Process/Activity Step List, which shall serve as a basis for subsequent EHS risk assessments.

PSMC's environmental safety and health policies, and management objectives are formulated based on the specific risks and opportunities identified through SWOT analysis at the corporate and departmental levels. The management objectives and implementation plans are discussed through the environmental safety and health representatives at each plant, and then implemented after the results are reported upward by the management audit committee.

PSMC has formulated the "Contractor ESH Protection Regulations," requiring contractors to effectively implement safety, health and environmental management during operations within Fabs, with zero workplace injuries as the management goal. Each factory area implements personnel and movement control based on the principle of "one certificate and one card for contractors." Contractors must complete education and training courses as well as passing a test to obtain a SWP (special work permit) and access control card, along with an approved work permit, before they can enter and exit designated work areas. Each business unit regularly receives monthly contractor management reports, formulates enhanced management measures based on statistical analysis results, and conducts focused supervision and self-management requirements for contractors with frequent violations. The relevant findings will be included in the quarterly review and evaluation by the ESH Committee. To improve the efficiency of communication and management, PSMC launched a Contractor Management System in 2025, and formulated relevant training materials within the platform for contractors to access and utilize in real time.

Contractor evaluation and auditing are crucial components of the management mechanism. PSMC explicitly includes occupational safety and health regulations in its procurement contracts to ensure that contractors fully understand and comply with the Company's operating requirements and relevant laws and regulations. The ESH Department in each plants collaborates with the Procurement Department to conduct regular contractor evaluations according to unified evaluation standards. Contractors propose improvement measures for any deficiencies and conduct follow-up reviews. The evaluation results also serve as an important reference for subsequent contracting and renewals. In 2025, a total of 184 contractors were evaluated, and all evaluation results met the requirements, allowing for continued cooperation.

In order to effectively control the activities, products, services, and internal and external issues related to the environmental safety and health operations at the plant site, PSMC has established the "Environmental Safety and Health Management Manual", which covers all stakeholders related to the company's operations, including all employees, customers, contractors, suppliers, subcontractors, environmental safety and health authorities, and nongovernmental organizations.

In terms of implementation, supervisors at all levels provide adequate resources and support according to their duties, and encourage departmental colleagues to actively participate in proposals for improvement and training discussions to enhance the vigilance of business execution and the safety of the working environment, and to strengthen the overall environmental safety and health quality, with “proactive, safe and immediate” as the starting point. In terms of supervision and management, we regularly review the level of compliance of the operation of the environmental safety and health management system in accordance with the Environmental Safety and Health Management Review Regulations and Abnormal Incident Investigation Practice on a quarterly basis, evaluate the progress and results of achieving the goals of preventing and reducing risks of health and safety hazards and deliver the audit results to the management and stakeholders as a point of reference for the improvement and adjustment of the management system. In addition, PSMC has established abnormal event investigation procedures, which include investigation of occupational disasters (including traffic accidents) and abnormal events, hazard identification, safety inspections, and on-site audits to confirm the causes of accidents and propose measures to prevent accidents and correct and prevent their recurrence.

In accordance with the operating environment monitoring plan, PSMC determines the monitoring locations and sampling plans based on the identification of hazards and risks that have occurred or are potentially present in the workplace. The results of the operating environment monitoring cannot exceed the requirements of the Allowable Exposure Standards for Labor Workplaces as announced by the Ministry of Labor, and if they do, improvement measures must be immediately formulated in accordance with the control measures of the Environmental Safety and Health Risk Assessment Practice, and the effectiveness will be evaluated again and records kept.

In order to grasp the actual working environment of employees and evaluate the exposure of hazardous factors, PSMC performs semi-annual monitoring of items required by law, including chemical hazards (including organic solvents and specific chemical substances), physical hazards, and bacteria testing, in accordance with the Regulations on Implementation of Labor Environment Monitoring. It also commissions an operating environment monitoring organization approved by the Ministry of Labor to perform various environmental testing tasks, review the data of operating environment monitoring results, quantify the variation characteristics of the data distribution, and provide feedback to the next sampling strategy planning for reference, and conduct follow up operating environment monitoring plans and notification of monitoring results.

The operating environment monitoring results and improvement measures are all described in the Safety, Health and Environment Committee meetings to labor representatives and meeting participants for related employees to be well aware of relevant issues and build up good safety and health protection concepts. The 2025 monitoring results all met regulatory requirements.

In accordance with the “Environmental Safety and Health Education and Training Regulations” and the “Employee Education and Training Procedures,” PSMC has designed occupational safety and health courses to cultivate all employees to understand the operation model of the PSMC's environmental safety and health system and to possess the necessary knowledge and skills for workplace safety and disaster prevention. To effectively enhance the professionalism of our personnel and their ability to respond to crises is the focus of PSMC's occupational safety and health education and training.

PSMC's environmental safety and health education and training is divided into three major categories, including “Environmental Safety and Health Management System,” “Legal License,” and “Operational Control”. Each department conducts the suitability assessment of personnel who may affect the performance of environmental safety and health and compliance obligations in order to plan the required education and training categories, and formulates the departmental environmental safety and health education and training plan. 175 education and training plans were completed in 2025 and were included in each department's target. The achievement rate is confirmed to be 100% on a quarterly basis, and the Company safety and health education and training plan system was used to provide departments with updates and inquiries on safety and health training results. For example, each department organized waste reduction-related education and training, and a total of 101 education and training sessions were organized. A total of 4,964 people have participated in the training. The results of each departments training courses were presented in the company's electronic database, making the management and audit of environmental, safety and health training more efficient.

In 2025, a total of 216 training sessions were conducted, with 30,634 trainees, including 35 sessions for new employees training, with 781 trainees. In addition, the company conducted training on human hazard prevention, strengthening the hazard identification and prevention capabilities of risk assessment personnel in various departments through on-the-job retraining and related lectures during Occupational Safety and Environmental Protection Month. A total of 13,907 people completed the training throughout the year. As of the end of 2025, there are 1,054 people holding various ESH-related positions, all possessing the necessary certifications and licenses in accordance with regulations and internal standards. Furthermore, the Company also conducted hazard notification and safety and health training for new employees of the contracting partners, with 1,939 people completing the training in 2025, ensuring consistent safety throughout the plant operations.

To ensure the skillful and effective use of emergency equipment in emergencies and to prevent ERT personnel from injuries during accident rescue, training on the operation of protective and emergency equipment is regularly scheduled annually. PSMC conducted 318 ERT training sessions in 2025, with 1,144 qualified ERT rescue team members being trained, and 199 members completing the ERT first aid team training (online CPR and AED courses). In addition, PSMC has formulated the "Plant Disaster Emergency Response Measures" to ensure that in the event of an emergency, a correct and effective systematic response procedure can be used to mitigate personal injury, property damage, and environmental impact caused by accidents. 294 ERT drills were conducted in 2025, including cleanroom evacuation drills, departmental autonomous response drills and interdepartmental joint drills.

All contractors were required to complete construction capability certification before entering the plant, with 1,230 contractors completing this process in 2025. Each contractors who enters into the plant for the first time was required to attend an introductory training course. There were 365 training courses were conducted in 2025, and 1,939 working permits were issued. Furthermore, to further enhance contractors’ hazard awareness, long-term contractors in catering, security, cleaning, and gas cylinder replacement sectors were required to receive at least one hour of safety and health-related training annually. A comprehensive on-the-job retraining program was implemented in 2025, assisting 10,212 contractors in completing hazard prevention awareness training and obtaining plant operation qualifications for 2026-2028, effectively reducing operational risks.

The total injury index value of PSMC for the entire company in 2025 is zero (excluding traffic injuries), which is in line with the Company's annual target and is far lower than the three-year average of 0.09 in the semiconductor manufacturing industry.