Stock Code: 200771 Stock ID: Hangqilun B Announcement No.: 2022-39 Hangzhou Steam Turbine Co., Ltd. Announcement on Adding Temporary Proposal and Supplementary Notice of the 2021 Annual General Meeting of Shareholders 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 March 29, 2022, the Company held the 23rd meeting of the Eighth Board of Directors, which reviewed and approved the Proposal on Holding the 2021 Annual General Meeting of Shareholders of the Company, and it published the Notice of Hangzhou Steam Turbine Co., Ltd. on Holding the 2021 Annual General Meeting of Shareholders on Shanghai Securities News, Securities Times, Hong Kong Commercial Daily and CNINF (www.cninfo.com.cn) on March 31, 2022(Announcement No.:2022-26). On April 11, 2022, the Board of Directors of the Company received from the controlling shareholder Hangzhou Steam Turbine Power Group Co., Ltd. the Notice on Increasing the Temporary Proposal of the General Meeting of Shareholders, and proposed to increase the Temporary Proposal of Electing Ms. Zhu Chenqian as the Supervisor of the Eighth Board of Supervisors at the 2021 Annual General Meeting of Shareholders held on April 27, 2022. After verification by the Board of Directors of the Company, as of the disclosure date of this announcement, Hangzhou Steam Turbine Power Group Co., Ltd. holds 479,824,800 shares of the Company, accounting for 63.64%. The procedure of adding temporary proposal by the controlling shareholder complies with the Company Law, the Rules of General Meeting of Shareholders of Listed Companies, the Rules of Stock Listing of Shenzhen Stock Exchange and the Articles of Association, and the contents of the proposal do not exceed the provisions of laws and regulations and the Articles of Association as well as the terms of reference of the General Meeting of Shareholders. The Board of Directors agrees to make this temporary proposal as a new proposal of the Company's 2021 Annual General Meeting of Shareholders. Due to the increase of the above-mentioned temporary proposal, the voting items of the original 2021 Annual General Meeting of Shareholders have been increased correspondingly. Proposal 8: Review the Proposal on Electing Ms. Zhu Chenqian as the Supervisor of the Eighth Board of Supervisors of Hangzhou Steam Turbine Co., Ltd., and the resume of the supervisor candidate Ms. Zhu Chenqian is shown in the annex. In addition, the time and place of the 2021 Annual General Meeting of Shareholders of the Company, the date of record, the original proposal and other matters remain unchanged. After the temporary proposal is added, please refer to the Company's announcement on April 12, 2022 for the updated notice of the complete General Meeting of Shareholders: Notice on Holding 2021 Annual Shareholders' General Meeting(Renewed)(Announcement No.:2022-40). Annex: Resume of Ms. Zhu Chenqian The Board of Directors of Hangzhou Steam Turbine Co., Ltd. April 12,2022 Annex: Resume of Ms. Zhu Chenqian Ms. Zhu Chenqian, born in May, 1992, Member of the Communist Party of China, graduate degree, master's degree in finance from St Andrews University (UK), Certified Public Accountant, Certified Asset Appraiser and Intermediate Accountant. Working experience: From October 2015 to September 2017, she worked as an Auditor in PricewaterhouseCoopers Zhongtian Certified Public Accountants (special general partnership); From September 2017 to April 2019, she worked as a Risk Manager/Product Manager in Hangzhou Branch of Bank of Beijing Limited; Since November 2019, she has been in charge of the Risk Control Legal Department of Hangzhou State-owned Capital Investment and Operation Co., Ltd. Ms. Zhu Chenqian is related to Hangzhou State-owned Capital Investment and Operation Co., Ltd., the indirect controlling shareholder of the Company; she is not holding the shares of the Company; She has not been punished by China Securities Regulatory Commission and other relevant departments or disciplined by the stock exchange, and has not been put on file for investigation by judicial organs for suspected crimes or for inspection by China Securities Regulatory Commission for suspected violations of laws and regulations; She has not been publicized by the China Securities Regulatory Commission on the public inquiry platform of illegal and untrustworthy information in the securities and futures market or included in the list of defaulters by the people's court; And she is free from situation in which the first paragraph of Article 3.2.2 of the Self-regulatory Guidelines No.1-Standard Operation of Listed Companies on Main Board stipulates that one shall not be nominated as a supervisor.