IRPC Annual Report 2023

No. Name Position Date of appointment/ Number of term served 1. Dr. Siri Jirapongphan Independent Director Chairman 5 April 2022 1 2. Miss Siriwan Chierapong Independent Director Chairperson of the Risk Management Committee 3 April 2019 5 April 2022 1 2 3. Miss Piangpanor Boonklam Director Member of the Risk Management Committee 20 January 2021 31 March 2021 1 2 4. Mr. Prasong Intaranongphai Director Member of the Risk Management Committee 1 December 2022 1 5. Mr. Pornchai Thiraveja (1) Director Member of the Risk Management Committee 5 April 2023 1 6. Asst. Prof. Dr. Chaiyaporn Puprasert Independent Director Member of the Corporate Governance and Sustainability Committee 31 March 2021 1 2 7. Mrs. Pranot Tirasai (2) Director Member of the Corporate Governance and Sustainability Committee 5 April 2023 1 8. Mr. Chansak Chuenchom Director Chairman of the Nomination and Remuneration Committee 1 October 2021 1 9. Mr. Petai Mudtham Director Member of the Nomination and Remuneration Committee 19 January 2022 1 10. General Aittipol Suwannarat Independent Director Member of the Nomination and Remuneration Committee 5 April 2022 1 11. Mr. Yodchat Tasarika Independent Director Chairman of the Audit Committee 5 April 2022 1 12. Mr. Somchai Rangsithananon (3) Independent Director Member of the Audit Committee 5 April 2022 1 13 M.D. Korn Pongjitdham (4) Independent Director Member of the Audit Committee 5 April 2022 1 14. Mr. Kris Imsang (5) Executive Director (Chief Executive Officer and President) Member of the Risk Management Committee 1 October 2022 5 April 2023 1 2 The Company’s Board of Directors The Board of Directors as of December 31, 2023 As of December 31, 2023, there were 14 directors on IRPC’s Board (one director passed away on December 26, 2023). Of these 14 Board members, seven were independent directors (more than 50 percent of the entire Board), and three female directors (21 percent of the Board) as shown below: Notes: New directors were appointed to replace those who had retired, or resigned in 2023 as follows: (1) Mr. Pornchai Thiraveja assumed the position of Director and Member of the Risk Management Committee, effective from April 5, 2023, replacing Mr. Ekniti Nitithanprapas who had completed his term. (2) Mrs. Pranot Tirasai assumed the position of Director and Member of the Corporate Governance and Sustainability Committee, effective from April 5, 2023, replacing Mr. Anusorn Saengnimnuan who had completed his term. (3) Mr. Somchai Rangsithananon assumed the position of Director and Member of the Audit Committee, effective from April 5, 2023, replacing Mr. Somnuk Bomrungsalee who had completed his term. (4) Dr. Korn Pongjitdham assumed the position of Director and Member of the Audit Committee, effective from April 5, 2023, replacing Mr. Jumphon Sampaopol who had completed his term. (5) Mr. Kris Imsang resumed his position as Director and Member of the Risk Management Committee as well as Chief Executive Officer and President on April 5, 2023 for another term. 221 Corporate Governance Structure and Important Information about the Board of Directors, Board’s Committees, Executives and Employees 56-1 ONE REPORT 2023

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