PTT : Notice of additional information on the pre-emptive ratio regarding pre-emptive rights offering and allocation of PTT Oil and Retail Business Public Company Limited's newly issued ordinary shares to the Eligible Shareholders of PTT Plc.

(Translation)

No. 80000001/11

13 January 2021

Subject: Notice of additional information on the pre-emptive ratio regarding pre- emptive rights offering and allocation of PTT Oil and Retail Business Public Company Limited' s newly issued ordinary shares to the Eligible Shareholders of PTT Public Company Limited

To: President

The Stock Exchange of Thailand

According to the disclosure of PTT Public Company Limited (" PTT" ), from time to time, regarding the Initial Public Offering (" IPO" ) of the newly issued ordinary shares of PTT Oil and Retail Business Public Company Limited ("OR"), a subsidiary of PTT.

PTT would like to inform that OR will offer and allocate up to 300,000,000 newly issued ordinary shares to PTT's shareholders who only reside in Thailand, that their registered mailing address(es) in Thailand as recorded in PTT's share registered book as of the Record Date (5 January 2021) (the "Eligible Shareholders of PTT"). The pre-emptiveratio is 95.1997 PTT ordinary shares per 1 newly issued ordinary share of OR. In case there are fractions of shares resulting from the calculation, such fractions of shares shall be rounded down. The oversubscription without cap of entitled right is permitted for the Eligible Shareholders of PTT. Subsequently, PTT will deliver the pre-emptive rights document and subscription details of OR's IPO to the Eligible Shareholders of PTT thru registered mails.

PTT will announce OR IPO's preliminary price range and subscription period after OR' s Registration Statement and Draft of Prospectus become effective.

OR reserves the right that OR shall not offer and allocate its newly issued ordinary shares to any person or subscriber in the event that ( a) such offering or allocation would or may cause OR to have any obligations under foreign laws, besides any action in accordance with the Thai laws or regulations

/relating…

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relating to the issuance and offering of securities; or (b) where such offering or allocation would not comply with the rules, procedures or conditions prescribed in such offering or allocation.

Please be informed accordingly.

Yours sincerely,

(Mr. Auttapol Rerkpiboon)

President & Chief Executive Officer

Investor Relations Department

Tel [phone]

Fax [phone]

THIS DOCUMENT DOES NOT CONSTITUTE AN OFFER TO SELL OR THE SOLICITATION OF AN OFFER TO BUY ANY SECURITIES IN THE UNITED STATES OR IN ANY OTHER JURISDICTION IN WHICH SUCH OFFERS OR SALES MAY BE UNLAWFUL. THE ORDINARY SHARES OF OR TO BE OFFERED HAVE NOT BEEN, AND WILL NOT BE, REGISTERED UNDER THE U. S. SECURITIES ACT OF 1933, (AS AMENDED) ("THE "U.S. SECURITIES ACT"), OR WITH ANY SECURITIES REGULATORY AUTHORITY OF ANY STATE OR OTHER JURISDICTION OF THE UNITED STATES AND MAY NOT BE OFFERED OR SOLD, DIRECTLY OR INDIRECTLY, INTO THE UNITED STATES UNLESS SUCH ORDINARY SHARES ARE SO REGISTERED UNDER THE U. S. SECURITIES ACT OR AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS IS AVAILABLE UNDER THE U.S. SECURITIES ACT.