IRPC Public Company Limited ("the Company") announced that the Board of Directors at the meeting No. 7/2023 on 19 June 2023 resolved to approve the appointment of the Sustainability Committee by merging with the "Corporate Governance Committee" and changed its name to the "Corporate Governance and Sustainability Committee", effective from 19 June 2023 onwards. The Corporate Governance and Sustainability Committee consists of 3 members as follows: Mr. Supot Laosuarpha: Chairman of the Committee.

Mr. Chaiyaporn Puprasert (Independent Director): Member of the Committee. Ms. Pranot Tirasai: Member of the Committee.