The board of directors of Chengdu SIWI Science and Technology Company Limited announced that with effect from 21 October 2022, Mr. Wang Yinyu
ceased to be the chief financial officer of the Company. Mr. Wang Yinyu has confirmed that there are no matters in relation to his resignation as the chief financial officer that need to be brought to the attention of the Stock Exchange and the shareholders of the Company. The Board announced that Mr. Xu Guangde has been appointed as the chief financial officer of the Company, with effect from 21 October 2022. Mr. Xu Guangde, aged 36, is a senior accountant and holds a master's degree in accounting from Southwestern University of Finance and Economics and a bachelor's degree in financial accounting education from Central China Normal University. Prior to his appointment as the chief financial officer of the Company, Mr. Xu Guangde worked in the financial department of the 29th Research Institute of China Electronics Technology Group Corporation. Mr. Xu Guangde has accumulated extensive experience in financial management.