GC_ONE REPORT 2021_ENG

2. BAHT DEBENTURES GC has 8 series of unsecured and unsubordinated Baht debentures, with the total issued amount of Baht 35,000 million, as detailed below. Year Dividend Payout (Baht/Share) Earning per Share (Baht/Share) Dividend Payout Ratio (%) 1st Half 2nd Half Full year 2021(1) 2.00 1.75 3.75 10.01 37% 2020 - 1.00 1.00 0.04 >200% 2019 1.00 1.00 2.00 2.59 77% 2018 1.75 2.50 4.25 8.89 48% The following are ratings from credit rating agencies: DIVIDEND PAYMENT POLICY Symbol Outstanding Amount (Million Baht) Annual Coupon Rate (%) Maturity Date Maturity (Year) Credit Rating (Fitch Ratings) PTTGC248A 10,000 2.90 August 22, 2024 5 AA+(tha) PTTGC249A 1,500 2.20 September 5, 2024 5 AA+(tha) PTTGC269A 7,000 2.43 September 5, 2026 7 AA+(tha) PTTGC299A 1,500 2.75 September 5, 2029 10 AA+(tha) PTTGC274A 1,530 2.60 April 8, 2027 7 AA+(tha) PTTGC304A 3,310 2.99 April 8, 2030 10 AA+(tha) PTTGC324A 4,360 3.29 April 8, 2032 12 AA+(tha) PTTGC354A 5,800 3.50 April 8, 2035 15 AA+(tha) Dividend Paid Credit Rating Agency Credit Rating Baa2 BBB AA+ (tha) Latest Date of Credit Rating Review July 19, 2021 August 31, 2021 July 22, 2021 PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED The Board of Directors Meeting No. 1/2012, held on October 19, 2012, resolved that the dividend payment policy of the Company is “to pay dividend at a rate of no less than 30% of net profit after tax and allocation to all reserve funds of the Company. Such dividend payment, however, is subject to the investment plan, other necessary and appropriate considerations in the future.” SUBSIDIARIES’ DIVIDEND PAYMENT POLICY The dividend payment policy for GC’s subsidiaries shall be considered and proposed by the Board of Directors of each subsidiary for approval at the Annual General Meeting of each subsidiary. The dividend payment of subsidiaries shall be calculated based on the investment plans and other requirements and considerations, such as the adequacy of cash flow of each subsidiary after deducting reserve funds in accordance with the law. Remark: (1) The Board of Directors’ Meeting No. 2/2022 held on February 14, 2022, agreed to propose the Annual General Meeting of Shareholders to consider and approve on the dividend payment for the year 2021 operating performance of Baht 3.75 per share, or dividend payout ratio at 37% of the net profit of consolidated financial statements, of which Baht 2.00 per share was paid as interim dividend on September 22, 2021. The remaining dividend of Baht 1.75 per share is to be proposed to the 2022 Annual General Meeting of Shareholders for approval. 75 BUSINESS OPERATION AND PERFORMANCE CORPORATE GOVERNANCE FINANCIAL REPORTS AND FINANCIAL STATEMENTS APPENDIX

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