in the amount of THB 226 million. 8 | Management Discussion and Analysis of Business Operation for the 2nd quarter of 2017 Bangchak Corporation Plc. 1) Refinery Business Crude Oil Price Situation (Unit

Group Crude Oil Price Situation (Unit : USD/BBL) Crude Oil Price Q2/2017 Q1/2018 Q2/2018 YoY QoQ 6M 6M YoY AVG AVG MAX MIN AVG % % 2017 2018 % Dubai (DB) 49.68 63.96 77.29 64.69 72.07 45% 13% 51.38 68.01

Situation (Unit : USD/BBL) Crude Oil Price Q3/2017 Q2/2018 Q3/2018 YoY QoQ 9M 9M YoY AVG AVG MAX MIN AVG % % 2017 2018 % Dubai (DB) 50.43 72.07 80.45 69.61 74.22 47% 3% 51.06 70.10 37% Dated Brent (DTD) 52.08

to the SEC Office within seven days after the date on which the approved Thai government agencies becomes aware or should have been aware of such situation. Clause 30 The approved Thai government

aware of such situation. Clause 30 An approved foreign entity for offer for sale of bonds shall submit the following reports to the SEC Office in accordance with the procedures specifed in Clause 7: (1

profits from their operating results, and ordinary share premium from share capital. Please be informed accordingly. Sincerely yours, (Miss Kanokpailin Wilaikaew) (Mr. Panyawath Chanrungsang) Chief Finance

portion of the Company's shareholders of THB 1,163 million or -47.0%. Please be informed accordingly. Yours sincerely, (Mr.Teerawut Pangviroonrug) Chief Executive Officer 6 7

the Company's shareholders of THB 1,163 million or -47.0%. Please be informed accordingly. Yours sincerely, -Teerawut Pangviroonrug - (Mr.Teerawut Pangviroonrug) Chief Executive Officer

_________________________________ (Ms. Piyaporn Phanachet) Director and Chief Executive Officer

of staff benefits, deposit of rental and service fee and other non-current liabilities. After Revision Please kindly be informed accordingly. Sincerely yours, Mr. Opas Sripayak Chief Executive Officer