PTT Public : Designation of Authorized Directors and Appointment of Members of the Specific Committees

(Translation)

No. 80000001/435

April 25, 2018

Subject : Designation of Authorized Directors and Appointment of Members of the Specific Committees

To : President The Stock Exchange of Thailand

CC : Secretary-General of the Office of the Securities and Exchange Commission

PTT Public Company Limited (PTT) would like to inform you that the resolution of PTT Board of Directors

Meeting No. 4/2018, held on April 25, 2018, has approved as follows:

1. Designating Mr. Supot Teachavorasinskun and Mr. Surapon Nitikraipot as the authorized directors. The authorized directors, therefore, are as follows;

"(1) Mr. Tevin Vongvanich, President, can singly sign to bind the Company with the Company's

Seal being affixed; or (2) Any two of four of Air Marshal Boonsuib Prasit, Mr. Don Wasantapruek,

Mr. Supot Teachavorasinskun, or Mr. Surapon Nitikraipot, can jointly sign to bind the Company with the Company's Seal being affixed."

PTT will register the designation of the authorized directors with the Department of Business Development,

Ministry of Commerce in due course.

2. Appointing members of the specific committees, i.e., the Nominating Committee and the Enterprise Risk

Management Committee as follows:

The Nominating Committee:

• • AM Boonsuib Prasit Independent Director as the chairman (unchanged)

• • Professor Dr.Surapon Nitikraipot Independent Director as a member (newly appointed)

• • Mr. Supot Teachavorasinskun Independent Director as a member (newly appointed)

The Enterprise Risk Management Committee:

• Mr. Thon Thamrongnawasawat Independent Director	as the chairman (newly appointed)
• Mr. Thammayot Srichuai Director	as a member (unchanged)
• Mr. Danucha Pichayanan Independent Director	as a member (newly appointed)
The appointments shall be effective on April 25, 2018.

-2-

PTT therefore would like to summarize the list of the Board of Directors and the Specific Committees as follows:

• 1. Mr. Piyasvasti Amranand Independent Director/ Chairman

• 2. Professor Dr. Kittipong Kittayarak Independent Director/ Chairman of the Audit Committee

• 3. AM Boonsuib Prasit

• 4. Mr. Vichai Assarasakorn

• 5. Gen Chatchalerm Chalermsukh

• 6. Mr.Thon Thamrongnawasawat

• 7. Mrs. Nuntawan Sakuntanaga

• 8. Mr. Supot TeachavorasinskunIndependent Director/ Chairman of the Nominating Committee

Independent Director/ Chairman of the Remuneration Committee /

Member of the Audit Committee

Independent Director/ Chairman of the Corporate Governance

Committee

Independent Director/ Chairman of the Enterprise Risk

Management Committee / Member of the Corporate Governance

Committee

Independent Director/ Member of the Audit Committee

Independent Director/ Member of the Nominating Committee

• 9. Professor Dr.Surapon Nitikraipot Independent Director/ Member of the Nominating Committee

• 10. Mr.Somsak Chotrattanasiri

• 11. Mr.Somchai Sujjapongse

12. Mr.Don Wasantapruek

• 13. Mr. Danucha Pichayanan

• 14. Mr. Thammayot Srichuai

• 15.Mr. Tevin Vongvanich

Please be informed accordingly.

Yours sincerely,

Mr. Tevin VongvanichPresident & CEOIndependent Director/ Member of the Remuneration Committee

Director/ Member of the Remuneration Committee

(resigning effective from May 1, 2018)

Independent Director/ Member of the Corporate Governance

Committee

Independent Director/ Member of the Enterprise Risk Management

Committee

Director/ Member of the Enterprise Risk Management Committee

Director/Secretary to the Board/ President & CEO

Office of President and Corporate Secretary Tel. [phone] Fax. [phone]