Thai Oil Public Company Limited inform the resolutions of Board of Directors' extraordinary meeting held on April 10, 2023 to appoint Board-Committee members as follows: Lt. Gen. Apichat Chaiyadar: Member of Audit Committee/Member of Nomination and Remuneration Committee, Pol.

Capt. Piya Raksakul: Member of Audit Committee, Mr. Distat Hotrakitya: Member of Corporate Governance and Sustainability Committee, Mr. Suchat Ramarch: Member of Corporate Governance and Sustainability Committee, Mr. Plakorn Wanglee: Member of Corporate Governance and Sustainability Committee (In addition to his existing position as Member of Audit Committee); Ms. Phannalin Mahawongtikul: Member of Risk Management Committee for another term; Dr. Veerapat Kiatfuengfoo: Member of Risk Management Committee; Dr. Nattapon Nattasomboon: Member of Risk Management Committee. The above appointment of Board Committee member is effective from April 10, 2023 onwards.

The list of the Board of Directors and the Board-Committees of the Company as of April 10, 2023 are as follows: Professor Dr. Supot Teachavorasinskun: Independent Director/Chairman of the Board, Gen. Kukiat Srinaka: Independent Director/Member of Corporate Governance and Sustainability Committee; Mr. Distat Hotrakitya: Independent Director/Member of Corporate Governance and Sustainability Committee; Ms. Phannalin Mahawongtikul: Director/Member of Risk Management Committee; Dr. Buranin Rattanasombat: Director/Member of Risk Management Committee; Associate Prof. Dr. Pasu Decharin: Independent Director/Member of Audit Committee/Member of Nomination and Remuneration Committee; Lt. Gen.

Apichat Chaiyadar: Independent Director/Member of Audit Committee/Member of Nomination and Remuneration Committee; Mr. Terdkiat Prommool: Director/Member of Nomination and Remuneration Committee; Mr. Plakorn Wanglee: Independent Director/Member of Audit Committee/Member of Corporate Governance and Sustainability Committee; Dr. Sompop Pattanariyankool: Director/Member of Corporate Governance and Sustainability Committee; Dr. Nattapon Nattasomboon: Independent Director/Member of Risk Management Committee; Pol. Capt. Piya Raksakul: Independent Director/Member of Audit Committee; Mr. Suchat Ramarch: Director/Member of Corporate Governance and Sustainability Committee; Dr. Veerapat Kiatfuengfoo: Director/Member of Risk Management Committee; Mr. Bandhit Thamprajamchit: Director/Member of Risk Management Committee/Chief Executive Officer and President/Secretary to the Board.