PTT Exploration and Production : Completion of the acquisition of 20% participating interest in Block 61, Sultanate of Oman, from BP Exploration (Epsilon) Limited

PTTEP 13061/00-2629/2021

Investor Relations

Tel. [phone]

29 March 2021

President

The Stock Exchange of Thailand

93 Ratchadapisek Road, Din Daeng

Bangkok 10400

Dear Sir,

Subject: Completion of the acquisition of 20% participating interest in Block 61, Sultanate of Oman, from BP Exploration (Epsilon) Limited

Reference: Letter no. PTTEP 13061/00-0992/2021, dated 1 February 2021

Reference is made to PTT Exploration and Production Public Company Limited (PTTEP)'s Statement dated 1 February 2021 with respect to the signing of Sale and Purchase Agreement ('SPA') to acquire 20% interest in Block 61, Sultanate of Oman from BP Exploration (Epsilon) Limited through PTTEP MENA Limited, a subsidiary of PTTEP.

PTTEP wishes to announce that, on 23 March 2021, the conditions precedent to Completion prescribed in the aforementioned agreement have been fulfilled.

Please be informed accordingly.

Sincerely yours,

Phongsthorn Thavisin

Phongsthorn Thavisin

Chief Executive Officer