Corporate Governance and Sustainability Committee Name Position Date of Appointment 1. Professor Somkit Lertpaithoon Chairman of the Corporate Governance and Sustainability Committee (Independent Director) April 23, 2018 2. Mr. Surachai Achalaboon(1) Director to the Corporate Governance and Sustainability Committee (Independent Director) May 22, 2023 3. Police Colonel Dusadee Aryawuit(2) Director to the Corporate Governance and Sustainability Committee (Independent Director) Nov 1, 2023 4. Mr. Patchara Anuntasilpa(3) Director to the Corporate Governance and Sustainability Committee (Director) April 7, 2023 5. Mr. Chadil Chavanalikikorn Director to the Corporate Governance and Sustainability Committee (Director) Dec 19, 2022 Mrs. Pilasphan Udomjarumanee, Senior Vice President of Corporate Governance and Legal, serves as Secretary to the Corporate Governance and Sustainability Committee. Remarks: (1) Mr. Surachai Achalaboon was appointed Director to the Corporate Governance and Sustainability Committee, replacing M.L. Chayotid Kridakon on May 22, 2023. (2) Police Colonel Dusadee Aryawuit was appointed Director to the Corporate Governance and Sustainability Committee, replacing Mrs. Watanan Petersik on November 1, 2023. (3) Mr. Patchara Anuntasilpa was appointed Director to the Corporate Governance and Sustainability Committee, replacing Mrs. Pantip Sripimol on April 7, 2023. The Corporate Governance and Sustainability Committee is composed of at least three Directors of the Board, more than half of whom shall be Independent Directors. Its Chairman shall also be an Independent Director. These Directors serve a three-year term unless their terms on the Board end or they resign or are removed from their positions. The Corporate Governance and Sustainability Committee is responsible for establishing policies as well as supervising and promoting the implementation of sustainable development. The committee is also tasked with offering consultation and drawing up suitable and transparent operational guidelines in line with GC’s good corporate governance and sustainable development principles in order to achieve an environmental, social and governance (ESG) balance, which in turn benefits the creation of value and sustainable business growth and helps foster confidence and credibility among stakeholders. In 2023, the Corporate Governance Sustainability Committee convened a total of nine meetings, with an offsite meeting at Rayong Office on October 11, 2023, during which the Committee paid a visit to the Rayong Botanical Garden and offered clean energy-powered boat engines and upcycling life vests to the Director of the botanic garden. In addition, the Corporate Governance Sustainabi l ity Committee held two meetings with the Risk Management Committee to fulfill its role according to the scope of authority and responsibilities stipulated by the Charter of the Corporate Governance and Sustainability Committee and as assigned by the Board of Directors. The Committee also reported its performance outcomes to the Board and subsequently disclosed its performance summary to shareholders in Form 56-1 One Report. criteria for the annual performance assessment of the Board of Di rectors and CEO and assesses the per formance of CEO to determine appropr iate remuneration, which is then proposed to the Board of Directors for approval. Further details appear in the Charter of the Nomination and Remuneration Committee. In 2023, the Nomination and Remuneration Committee convened a total of 10 meetings to fulfill its role according to the scope of authority and responsibilities stipulated by the Charter of the Nomination and Remuneration Committee and as assigned by the Board of Directors. The Committee also reported its performance outcomes to the Board and subsequently disclosed its performance summary to shareholders in Form 56-1 One Report. 159 PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED Form 56-1 One Report 2023
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