IRPC One Report 2022 EN

• Carbon Emissions Management Certification IRPC has made a commitment to play an active role in the efforts to reduce greenhouse gas emissions at the national level and international level as a participant in the Conference of Parties to the UN Framework Convention on Climate Change. It has applied for Carbon Footprint of the Organization (CFO), Carbon Footprint of Corporate Products (CFP) and Carbon Reduction Label certification, to manage the reduction of carbon emissions from the company’s operations, reduce resource costs, and create new opportunities for growth and competitive edge. IRPC has for 8 consecutive years taken part in the Carbon Footprint for Organization (CFO) project, organized by the Federation of Thai Industries with financial support from Thailand Greenhouse Gas Management Organization (TGO). The project provides tools for the company to manage reduction of GHG emissions from operational activities, such as fuel combustion, electricity consumption, waste management and transportation. In 2022, IRPC obtained the Carbon Footprint Reduction Label certification from the TGO for 10 production plants as follows: 1) Olefins plant group consisting of 3 plants: ETP, ACB, PRP 2) Polyolefins plant group consisting of 3 plants: PP, PPC, PTK 3) HDPE &UHMWPE 4) BTX 5) EBSM 6) PS IRPC obtained the Carbon Footprint Reduction Label certification. On August 23, 2022, 3 plants of the Olefins plant group, namely Ethylene Plant (ETP), Acetylene Black Plant (ACB), Propylene Gas Plant (PRP), obtained the Carbon Footprint Reduction Label certification from Thailand Greenhouse Gas Management Organization (Public Organization) (TGO) with the collaboration of the Olefins Department, Department of Quality Control, Safety, Health, Environment, and Industrial Zone Management IRPC. This also expands the more results of carbon footprint calculation among the organizations in the industry. 163 Business-Driven Sustainability IRPC PUBLIC COMPANY LIMITED

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