PTT Global Chemical Public Company Limited approved the following at the Special Meeting No. 2/2023 held on November 1, 2023: 1. To appoint Directors in replacement of the vacant positions as follow; 1) Police Colonel Dusadee Arayawuth to be an Independent Director in replacement of Mr. Piyasvasti Amranand. 2) Mr. Thanwa Laohasiriwong to be an Independent Director in replacement of Mr. Apisak Tantivorawong.

3) Mr. Predee Daochai to be an Independent Director in replacement of Mrs. Watanan Petersik. The appointment of new independent directors No. 1) and 2) is effective from November 1, 2023 onwards and No.

3) is effective from November 15, 2023 onwards. 2. To appoint Mr. Predee Daochai to be the Chairman of the Board of Directors and Chairman of the Independent Directors in replacement of Mr. Piyasvasti Amranand, effective from November 15, 2023 onwards. To appoint Sub-Committee Members as follows 1) The Audit Committee: (1) Mr. Thanwa Laohasiriwong:Chairman (Newly Appointed), (2) Mr. Pakorn Nilprapunt:Director (Changed Position).

(3) Lieutenant General Nimit Suwannarat Director (unchanged). 2) The Nomination and Remuneration Committee: (1) Mr. Pakorn Nilprapunt: Chairman (unchanged), (2) Mr. Somkiat Prajamwong: Director (unchanged), (3) Lieutenant General Nimit Suwannarat:Director (unchanged). 3) The Corporate Governance and Sustainability Committee: (1) Mr. Somkit Lertpaithoon: Chairman (unchanged), (2) Police Colonel Dusadee Arayawuth: Director (Newly Appointed), (3) Mr. Patchara Anuntasilpa:Director (unchanged), (4) Mr. Chadil Chavanalikikorn: Director(unchanged), (5) Mr. Surachai Achalaboon: Director (unchanged), 4) The Risk Management Committee: (1) Mr. Grisada Boonrach: Chairman (unchanged), (2) Mr. Sarawut Kaewtathip:Director (unchanged), (3) Mr. Noppadol Pinsupa:Director: (unchanged), (4) Mr. Cherdchai Boonchoochauy:Director (unchanged), (5) Mr. Kongkrapan Intarajang: Director (unchanged) .

The appointment of new sub-committee members is effective from November 1, 2023 onwards.