Announcement No.:2026-26 Abbreviation of corporate bond:21 Yudean 03 Guangdong Electric Power Development Co., Ltd. The First Quarterly Report 2026 The Company and its directors hereby guarantee that the content of information disclosure is real, accurate, complete and free from any false record, misleading representation or material omissions. Important content reminder: 1. The Boardof Directors, directors, and senior management guarantee that the information presented in thisreport is true, accurate and complete without false records, misleading statements or material omissions, andwill undertake individual and joint legal liabilities. 2. The Company leader, Chief financial officer , the person in charge of the accounting department (the personin charge of the accounting )hereby confirm the authenticity and completeness of the financial report enclosedin this report. 3. Whether the First Quarterly Report has been audited or not □Yes √No I. Main financial data (I) Main accounting data and financial indexes Whether it has retroactive adjustment or re-statement on previous accounting data or not□YesNo In RMB For the Company’s non-recurring gain/loss items as defined in the Explanatory Announcement No.1 oninformation disclosure for Companies Offering their Securities to the Public-Non-recurring Gains and Lossesand its non-recurring gain/loss items as illustrated in the Explanatory Announcement No.1 on informationDisclosure for Companies offering their securities to the public-non-recurring Gains and losses which have beendefined as recurring gains and losses, it is necessary to explain the reason. (III) Particulars about changes in items of main accounting data and financial index and explanations ofreasons √ Applicable □Not applicable In the first quarter of 2026, thanks to the commissioning of new coal-fired power projects and improvements inthe generation efficiency of existing units, the Company’s electricity supply to the grid increased by 18% year-on-year. At the same time, the rise in capacity-based electricity prices for thermal power units partially offsetthe adverse impact of falling electricity prices resulting from intensified market competition, leading to a year-on-year increase in revenue from the power generation business. The Company deepened energy-saving andconsumption-reduction upgrades to its units and strengthened financial and cost controls. Benefiting from ayear-on-year decline in fuel prices, this drove an improvement in gross profit margins for the power generationbusiness. In the renewable energy sector, the wind power business maintained stable profitability year-on-yearunder the combined influence of increased electricity generation and falling electricity prices; however, for thesolar power business, newly commissioned projects were affected by the power market environment and policyfactors, resulting in the generation capacity and benefits not being fully realised. The growth in generationrevenue has not yet offset the increase in related depreciation and interest expenses, leading to a widening of theloss year-on-year. During the reporting period, the Company recorded an overall net profit attributable toshareholders of RMB -151.65 million, representing a narrowing of the loss compared with the same period lastyear. II. Shareholders Information (I) Total number of common shareholders and preference shareholders with voting rights recovered andtop ten common shareholders In shares Information of shareholders holding more than 5% of the shares, the top 10 shareholders and the top 10shareholders of unrestricted tradable shares participating in the lending of shares in securities lending andborrowing business □ApplicableNot applicable The top 10 shareholders and the top 10 shareholders of unrestricted tradable shares have changed comparedwith the previous period due to the securities lending/returning, □ApplicableNot applicable (II)Total number of preferred shareholders and shareholding of top 10 preferred shareholders by the endof the report period □ Applicable √Not applicable III. Other important matters □ Applicable √Not applicable IV. Quarterly financial statements (i)Financial statement 1. Consolidated balance sheet Prepared by: Guangdong Electric Power Development Co., Ltd. April 30, 2026 In RMB Legal Representative: Zheng Yunpeng Accounting Dept Leader: Meng Fei Accounting Dept Leader: Meng Fei In RMB (ii)The Company started implementing the updated accounting standards commencing from 2026 andadjusted the relevant items in the financial statements at the beginning of the very year involved in theinitial implementation of the said standards □Applicable √Not applicable (iii) Auditors 'Report Is the First Quarterly Report be audited?□ Yes√No The First Quarterly report is not audited. The Board of Directors of Guangdong Electric Power Development Co., Ltd.