IRPC Annual Report 2023

Note: * Due to the COVID-19 pandemic, activities to engage certain stakeholder groups have been switched to New Normal online events. Key Stake- holders Engagement Approach (Frequency)* Engagement Objective Issue of Interest Action Guidelines Implementing Unit Customers/ Consumers • Online communication channels, such as Webinar, Microsoft Team, electronic news • Exchange knowledge with customers • Collect customer information and keep the information up to date • Requirements and expectation of products, such as eco-friendly products • Improve business competitiveness and follow business direction in accordance with the new vision • Sustainability Operations and Net Zero Emissions • Strategies to respond to customer needs, such as water use strategies and sales strategy • Actions to increase production capacity and seek new businesses to correspond with current situations • Net Zero Pathway Strategy Commerce and Marketing Suppliers • Training prior to ESG audit (annual) • Supplier satisfaction survey (annual) • Supplier performance assessment (annual) • Clarify objectives of ESG audit • Take into consideration supplier satisfaction with IRPC’s procurement process • Provide suppliers with knowledge regarding key ESG requirements • Encourage supplier engagement and ensure satisfaction throughout the supply chain • Become a partner to grow business together • Business operations that respect human rights • Integrated Supply Chain Management through digital system • Guidelines for exchanging knowledge, sharing of knowledge in business and ESG requirements Procurement Community, Society and • Communicate with the community before/during/ after social project implementation • Organize public hearings (every time an Environmental Impact Assessment (EIA) report is prepared) • Conduct community satisfaction survey (annual) • Provide complaint channels • Inquire about community’s needs and problems • Provide information and promote understanding of construction projects • Gather information on community’s concerns, demands relating to construction projects • Build confidence and acceptance of construction projects and the company • Community’s needs and problems • Concerns, suggestions for construction projects • Management of the adverse effects of global warming, such as flood and drought • Strategies for implementing social responsibility and environmental stewardship through actions, such as social projects • Strategies for implementing mitigation measures specified in Environmental Impact Assessment (EIA) Report Social enterprise and community relations 111 Business-Driven Sustainability 56-1 ONE REPORT 2023

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