Stock Code: 200771 Stock ID: Hangqilun B Announcement No. :2023-56 Hangzhou Steam Turbine Power Group Co., Ltd. Announcement on Adding Temporary Proposal and Supplementary Notice of first Provisional general meeting of shareholders of 2023 The members of the Board and the Company acknowledge being responsible for the truthfulness, accuracy, and completeness of the announcement. Not any false record, misleading statement or significant omission carried in this announcement. On June 9, 2023, the Company held the 34th meeting of the Eighth Board of Directors, which reviewed and approved the Proposal on Holding the 2023 first provisional General Meeting of Shareholders of the Company, and it published the Notice of Hangzhou Steam Turbine Power Group Co., Ltd. on Holding the 2023 first provisional General Meeting of Shareholders on Shanghai Securities News, Securities Times, Hong Kong Commercial Daily and CNINF (www.cninfo.com.cn) on June 10, 2023 (Announcement No.:2023-51). On June 20,2023,The board of directors of the Company received the "Notice on Increasing the Provisional Proposal of the General Meeting of Shareholders" from Hangzhou Steam Turbine Holdings Co., Ltd-the controlling shareholder, which proposed to add the provisional proposal-"Proposal on Change of Registered Capital and Amendment of Articles of Association" to the first provisional general meeting of shareholders of 2023 that will be held on June 30, 2023. After verification, the board of directors of the Company has verified that as of the disclosure date of this announcement, Hangzhou Steam Turbine Holdings Co., Ltd holds 689,715,889 shares of the Company, with a shareholding ratio of 58.68%. The provisional proposal procedure added by Hangzhou Steam Turbine Holdings Co., Ltd-the controlling shareholder-complies with the relevant provisions of The Company Law, the Rules for the General Meeting of Shareholders of Listed Companies, the Rules for the Listing of Stocks on the Shenzhen Stock Exchange and the Articles of Association of the Company, and the content of its proposal does not exceed the provisions of laws and regulations, the Articles of Association and the terms of reference of the general meeting of shareholders, and the Board of Directors agrees to use the provisional proposal as a newly added proposal for the Company's first provisional general meeting of shareholders of 2023. Due to the increase of the above provisional proposal, the number of voting proposals notified by the original first provisional general meeting of shareholders of 2023 have been added accordingly, which adds the "Proposal on Change of Registered Capital and Amendment of Articles of Association " for deliberation, with the content is detailed in the annex. In addition, the time, place, share registration date, original proposals and other matters of the first provisional general meeting of shareholders of the Company of 2023 remain unchanged. After the addition of the provisional proposal, the updated full notice of the shareholders' meeting is detailed in the Company's announcement on June 21, 2023: "Notice of Hangzhou Steam Turbine Power Group Co., Ltd on Convening the First Provisional General Meeting of Shareholders of 2023 (Renewed)" (Announcement No.:2023-57). Annex: Proposal on Change of Registered Capital and Amendment of Articles of Association The Board of Directors of Hangzhou Steam Turbine Power Group Co., Ltd. June 21,2023 Annex: Proposal on Change of Registered Capital and Amendment of Articles of Association Due to the partial equity transfer by Hangzhou Steam Turbine Holdings Co., Ltd and the dividends and share distribution of the listed company, the registered capital of the listed company has changed. For details, please refer to the Comparative Table of Amendments of the Articles of Association. The above change of registered capital and amendments of the articles of association shall be subject to the final approval of the industrial and commercial registration authority. Comparative Table of Amendments of the Articles of Association No Before Amendment After Amendment 1 Article 5 Paragraph 2 Article 5, paragraph 2 After the implementation of the profit In 2023, the Company repurchased and cancelled 531,180 distribution plan approved by the Company at the restricted shares, cancelled the remaining repurchased 111,800 2021 annual general meeting of shareholders to give 3 shares, and the Company's share capital was changed to shares for every 10 shares, the Company's share 979,537,000 shares. After the implementation of the profit capital increased to 980,179,980 shares. In 2023, the distribution plan approved by the Company at the 2022 Annual Company repurchased and cancelled 531,180 General Meeting of Shareholders to give 2 shares for every 10 restricted shares, and cancelled the remaining shares, the Company's share capital was increased to 1,175,444,400 repurchased 111,800 shares, thus the Company's share shares. capital was changed to 979,537,000 shares. Thereinto, Hangzhou Steam Turbine Holdings Co., Ltd-a Thereinto, Hangzhou Steam Turbine Holdings national legal person shareholder-holds 689,715,889 shares, Co., Ltd-a national legal person shareholder-holds accounting for 58.68% of the total share capital; Guoxin Guotong 623,772,240 shares, accounting for 63.68% of the (Hangzhou) Equity Investment Co., Ltd - Hangzhou Qitong Equity total share capital; The number of domestically listed Investment Partnership (Limited Partnership) holds 58,810,799 foreign shares (B shares) is changed to 355,764,760 shares, accounting for 5.00% of the total share capital. The number shares, accounting for 36.32% of the total share of domestically listed foreign shares (B shares) is changed to capital. 426,917,712 shares, accounting for 36.32% of the total share capital. 2 Article 8 The registered capital of the Company Article 8 The registered capital of the Company is RMB is RMB 979,537,000. 1,175,444,400. 3 Article 21 The share capital structure of the Article 21 The share capital structure of the Company is: the Company is: the total share capital is 980,179,980 total share capital is 1,175,444,400 shares, of which the promoter shares, of which the promoter holds 623,772,240 Hangzhou Steam Turbine Holdings Co., Ltd holds 689,715,889 national shares (of which: after the implementation of national shares (of which: after the implementation of the the distribution plan of giving 3 shares for every 10 distribution plan of giving 2 shares for every 10 shares in 2022, shares in 2021, 143,947,440 shares were added), 114,952,648 shares were increased), accounting for 58.68% of the accounting for 63.64% of the total share capital; The total share capital; Guoxin Guotong (Hangzhou) Equity Investment number of domestically listed foreign shares (B Co., Ltd-Hangzhou Qitong Equity Investment Partnership (Limited shares) is 356,407,740 shares (of which: 82,222,140 Partnership) holds 58,810,799 national shares (of which: after the shares were increased after the implementation of the implementation of the distribution plan of giving 2 shares for every distribution plan of giving 3 shares for every 10 10 shares in 2022, 9,801,800 shares were increased), accounting for shares in 2021), accounting for 36.36% of the total 5.00% of the total share capital; There are 426,917,712 B shares (B share capital after the share grant. shares) domestically listed in China (of which: after the implementation of the distribution plan of giving 2 shares for every 10 shares in 2022, 71,152,952 shares were increased), accounting for 36.32% of the total share capital.