PTC passed the OHSAS 18001:1999 occupational health and safety management system certification in 2002, and obtained the ISO 45001:2018 occupational safety and health management system certification in 2020. In 2023, PTC once again obtained the ISO 45001 verification and certificate through SGS third-party verification, and According to Article 1-1 of the Occupational Safety and Health Management Measures, safety and health organizations and occupational safety management personnel are set up according to the scale and nature of the enterprise. In addition, special medical staff are set up to perform on-site health services in accordance with labor health protection rules. The company holds environmental, safety and health (ISO 45001 and ISO 14001) management review meetings every quarter, and formulates occupational safety and health management plans, human-related hazard prevention plans, and work-related hazards prevention plans in accordance with the Occupational Safety and Health Law and its sub-laws. The illegal infringement prevention plan, abnormal work load-related disease prevention and management plan, maternal health protection plan, hazard communication plan, etc. are regularly reviewed, updated and revised.

PTC established the Occupational Safety and Health Committee in accordance with Article 14 of the "Occupational Safety and Health Law" and the "Management Measures for the Establishment of Occupational Safety and Health Committees". The committee is chaired by the President of the company, and has an executive secretary and seven members, including three labor representatives, all of whom are elected by labor representatives at the labor-management meeting. They account for 42% of the total members of the occupational safety and health committee to assist supervise and recommend relevant plans for occupational safety and health management, and ensure that labor opinions are fully reflected.

The Occupational Safety and Health Committee meets quarterly to review, coordinate and promote company-wide safety and health management matters. The meeting was attended by occupational safety personnel, labor representatives and personnel related to environmental safety and health from each unit to jointly discuss and report on the implementation of environmental safety and health business in each department. At the meeting, labor representatives have the right to request detailed explanations from the management on safety and health issues. Both labor and management coordinate, review and communicate through the Occupational Safety and Health Committee meeting to ensure the effective implementation and continuous improvement of the company's safety and health management.

Princeton Technology has established the “Environmental, Safety, and Health (ESH) Hazard Identification and Risk Assessment Procedure.” According to this procedure, hazard identification and risk assessments are conducted annually, and preventive measures are implemented to eliminate or reduce risks.

Each business unit is responsible for ensuring workplace safety and health. Workers identify hazards in their areas, analyzing potential risks from operations, equipment, materials, and the environment. Hazards are scored based on likelihood, exposure, and existing controls. Major risks are included in the annual ESH objectives, with management plans such as engineering improvements, operational controls, and personal protective equipment. The ESH management unit supports units in implementing and monitoring these measures.

To maintain effectiveness, Princeton Technology reviews hazard identification and risk assessments annually. Qualified personnel perform the assessments, establishing a graded risk management system. High-risk areas are prioritized for improvements. Monthly ESH audits raise awareness among supervisors and employees, enhancing the company’s overall safety and health performance.

To ensure occupational health and safety in the workplace and protect employees’ personal safety, Princeton Technology has established the “Safety and Health Work Rules” in accordance with Article 18 of the Occupational Safety and Health Act.

The work rules outline the company’s OSH management responsibilities and authority, equipment usage instructions, required safety and health standards, employee training, health guidance, first aid and emergency response, personal protective equipment, and the incident reporting process. Employees are required to strictly follow these rules.

The manual also clearly states that if an employee encounters an imminent danger while performing their duties, they may stop work and move to a safe location without endangering others, and must immediately report to their direct supervisor. The company ensures that no adverse actions will be taken against employees for following this procedure.

Princeton Technology places great importance on the safety of contractors on-site. In addition to requiring legally mandated personnel or machinery operators to hold the necessary licenses or certifications, each business unit follows relevant occupational safety and health laws as well as the company’s internal contractor ESH management rules.

Before entering the work site, contractors are informed of potential hazards and are supervised by designated personnel. Various management mechanisms are also implemented to strengthen contractor safety and health management. Any potential ESH hazards and risks associated with contractor work are recorded in inspection forms to facilitate proper safety and health oversight during their operations on-site.

In order to improve employees' work safety and health knowledge, PTC not only strengthens publicity to employees through posters, literature and other methods from time to time, but also arranges employees to conduct regular environmental safety and health education and training, focusing on occupational safety for new employees and current employees. Health education training, emergency response, fire protection training and other courses and professional certificate personnel should go to qualified training institutions to participate in training.

The training points are as follows:

1.Instruct new employees on general safety and health knowledge, including industrial safety, fire protection, and first aid.
2.Earthquake and fire emergency response training for all employees.
3.All colleagues conduct evacuation drills and use protective gear when a disaster occurs.
4.Education and training on labeling of hazardous chemicals and general rules for personnel involved in chemical operations.

To ensure the safety and health of all employees and stakeholders, Princeton Technology goes beyond the requirements of the Labor Health Protection Regulations by arranging an annual comprehensive health check-up for all employees. The company also implements an on-site health service management program to prevent potential risks and occupational illnesses. Following the Occupational Safety and Health Act (OSHA) and related regulations, after reviewing the effectiveness of the 2022 program, the 2023 on-site health service management plan was developed, approved by management, and implemented with monitoring and follow-up to reduce occupational accident risks and prevent workplace injuries.

We collaborate with contracted on-site health service providers to publish monthly electronic health reports, offering employees timely and practical medical knowledge. On-site healthcare professionals provide individual health consultations and interviews at legally required frequencies and promote various health promotion activities to enhance employees’ overall well-being.

In addition to providing occupational health services to reduce health risks, Princeton Technology organizes regular health promotion activities and encourages employee participation, including competitions, sports events, and lectures. These initiatives help employees maintain their health, reduce disease burden, improve self-management, and strengthen their sense of belonging and satisfaction with the company, thereby boosting morale and loyalty and reducing staff turnover.

Greenhouse gas emissions for the past two years, including total emissions (metric tons CO₂e), emission intensity (metric tons CO₂e per million NT$), and data coverage scope.