IRPC Annual Report 2023

This is in order to promote the rights of shareholders in accordance with the principles of good corporate governance as well as enhancing their understanding of the company’s businesses and building a sense of ownership. IRPC organized the annual company visit by shareholders on September 27, 2023 at IRPC’s Oil Depot in Ayutthaya Province, during which the President and Chief Executive Officer provided briefings and an overview of the company’s operations. • The Customer IRPC takes upon itself to conduct its business with integrity and transparency, ensuring equal treatment of all customers. The company is dedicated to delivering products with quality standards that meet or exceed customer expectations. We are at the ready to provide valuable advice, introduce innovations to develop new products that satisfy internationally accepted standards. The company also emphasizes information technology system development to enable efficient and quick access to various database systems, with customer support that provides advice and helps resolve technical problems as well as builds good customer relationships. All customer-facing operations are interactive, with channels of communication to receive customer feedback, such as customer satisfaction questionnaire, so that the company may be able to serve them better. Furthermore, IRPC safeguards client personal data by developing Data Lost Protection (DLP) system and Privacy Notice, including setting policies and working group to determine measures to manage and protect personal data of customers in accordance with Personal Data Protection Act (PDPA). In 2023, IRPC implemented the following customer engagement activities: - Organized a seminar “IRPC – Returns Smile to the Sea” in Rayong Province attended by customers and traders from more than 30 countries around the world. Participants were briefed on IRPC’s market information, its petrochemical products in order to inspire trust in doing business together. The event included CSR activities involving the use of HDPE PIPE (PE100) as fish spawning habitat. - Participated in the PTT Group Circular Economy Forum 2023 “CONNEXT FOR A BETTER FUTURE”, setting up an exhibition booth to raise awareness, promote learning, build networks, showcase IRPC’s capabilities and exchange knowledge on doing business in accordance with the circular economy principles. Eco-friendly products from the company’s customers, Thai Manee Craft Company Limited and New Arriva Company Limited, or Qualy, were put on display and sold to visitors. Annual Company Visit by Shareholders on September 27, 2023 at IRPC’s Oil Depot in Ayutthaya Province 204 Corporate Governance Policy IRPC Public Company Limited

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