Airports of Thailand Public Company Limited received letters of resignation from AOT directorship from the following directors: 1. Miss Suttirat Rattanachot, Independent Director and Chairman of the Remuneration Committee, of which the resignation letter was effective from 19 October 2023 onwards. 2. Mr. Krit Sesavej, Independent Director and Chairman of the Risk Management Committee, of which the resignation letter was effective from 19 October 2023 onwards. 3. Air Chief Marshal Bhanupong Seyayongka, Director and Chairman of the Corporate Governance Committee, of which the resignation letter will be effective from 19 November 2023 onwards.

4. Mr. Wara Tongprasin, Independent Director, Chairman of the Audit Committee and Member of the Corporate Governance Committee due to many current task engagements, of which the resignation letter will be effective from 27 November 2023 onwards. 5. Mr. Krichthep Simlee, Independent Director, Member of the Audit Committee and Member of the Risk Management Committee due to different aspects of current task engagements, of which the resignation letter will be effective from 27 November 2023 onwards.