IRPC Annual Report 2023

Freedom of Association IRPC supports employees’ rights to organize labor unions, which is clearly stated in the employee relations policy, with the aim of creating a channel for union members and senior management to discuss matters of mutual interest, including the company’s business direction, workforce restructuring in response to economic situations, human resource development, employees’ career path and welfare benefits. The senior management have always taken an interest in listening to employees’ views and feedback on these matters. Both sides meet on a quarterly basis. In addition, employees may also make known their opinions through various channels, including employee satisfaction survey, etc. Human Rights Risks in Supply Chain Management IRPC communicates its human rights policy to critical suppliers and encourages them to strictly comply with the policy and practices. The company also assesses the suppliers’ compliance with human rights principles in accordance with the code of conduct on human rights and labor rights section of the sustainable procurement handbook. The company also checks the qualifications and age of contractors before allowing them to enter work sites to prevent the use of child labor. Training is also provided to instill in them a safety mindset to ensure safe working environments. In addition, suppliers are required to participate in seminars on ESG disclosures, including self-assessment by filling out questionnaire prior to ESG Onsite Audit. REMEDY Complaint Handling Process IRPC has set guidelines for creation of complaint channels and efficient complaint handling process, including assigning a person to take responsibility for handling complaints as well as notifying the complainants of the decisions made to resolve their grievances. E-mail: auditor@irpc.co.th Whistleblowing and Complaint Channels For more information on Complaint Handling Process, please go to www.irpc.co.th Postal Office: PO Box 35, Sun Tower Building Postal Office, Bangkok 10905 Mail: Chairman of the Audit Committee IRPC Public Company Limited 555/2 Energy Complex, Building B,Floor 6th, Vibhavadi Rangsit Road, Chatuchak, Chatuchak, Bangkok 10900 In 2023, IRPC received no complaints on human rights violations. of employees are union members. In 2023, the company received a total of 13 suggestions from labor unions. At IRPC, there are a total of 7 labor unions, and 75% 166 Business-Driven Sustainability IRPC Public Company Limited

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