GC One Report 2023 [EN]

Electronic Field Risk Assessment (e-FRA) GC has implemented a field risk assessment system to assist in developing the capabilities of workers to identify risks in the production process. Digital technology has been utilized to develop an e-FRA to record and monitor risk mitigation analyze production process risks, and formulate measures to prevent major accidents efficiently. Strengthening the PSM Committee and Inspirational Leadership Program (ILP) GC has enhanced its Process Safety Management (PSM) and Inspirational Leadership Program (ILP) by reviewing the readiness of the Plant PSM Committee, both in terms of governance processes and capabi l ity to ensure proper and robust oversight in accordance with the established standards, while also fostering felt leadership to drive a safety culture. As a result of these intensified efforts in safety and occupational health management, the total recordable injury rate (TRIR) and lost time injury frequency rate (LTIFR) in 2023 remained in the first quartile of the IOGP. Meanwhile, process safety events showed a downward trend. Every work-related injury or accident was also investigated to identify root causes and implement effective corrective and preventative measures in order for GC to achieve the goal of becoming a zero-accident organization. 2. Occupational Health GC places great importance on the health of its employees and strives to continuously develop towards international standards. To this end, it has adopted the Health Performance Index (HPI) by IPIECA-IOGP, which is a system for assessing occupat ional heal th management. Occupational health projects carried out by the Company include the following: GC Health Care System (GCHS) GC has adopted technology to enhance and integrate systems in order to enhance every aspect of employee health care and ensure they can access medical services and health information anytime and anywhere. GC also analyzes such data so as to develop appropriate health care and health promotion programs for employees. Programs under this system include E-Health Book, Health Risk Assessment, and Telemedicine. Ergonomics-related Projects GC promotes ergonomics knowledge and awareness among employees to encourage behavioral changes. In addition, the Company has acquired software to support risk assessment and provided suitable equipment to improve employee health and reduce the rate of ergonomics-related treatment. In 2023, as a result of the intensified efforts in occupational health management, GC employees enjoyed easier access to their health information, while the health data was successfully collected and analyzed to develop health promotion guidelines and projects better suited to employees to promote a healthy workplace and healthy living. 3. Environmental Management is divided into two components. 3.1) Maintaining Environmental Leadership According to DJSI Assessment Criteria GC prioritizes minimizing impact on the environment and biodiversity in its business operations to maintain environmental leadership according to the assessment criteria of DJSI. Therefore, it has applied the 5Rs (Reduce, Reuse, Recycle, Refuse, Renewable), which are its strategies for fostering the organizational culture, to environmental management, while also creating a balance between resource management and sustainable business operations. Operational eco-efficiency initiatives undertaken by GC include the following. Resource and Waste Management GC strives to optimize its resource and waste management, covering every process from product development to manufacturing, in order to maximize efficiency and benefits, minimize any waste and pollutants generated, and recover used and discarded materials for utilization in process area and administrative area through the following initiatives: Waste Management For More Information: https://sustainability.pttgcgroup.com/en/environment/wastemanagement/waste-management-target-and-performance 197 PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED Form 56-1 One Report 2023

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