The board of directors of Yangtze Optical Fibre and Cable Joint Stock Limited Company announced that due to job reassignment, Ms. Wong Yik Han resigned from and Ms. Lai Siu Kuen has been appointed to the following positions of the Company with effect from 29 April 2021: company secretary of the Company (the "Company Secretary"); an authorised representative of the Company (the "Authorised Representative") under Rule 3.05 of the Rules Governing the Listing of Securities (the "Listing Rules") on The Stock Exchange of Hong Kong Limited (the "Stock Exchange"); and agent for the service of process and notices on behalf of the Company in Hong Kong as required under Rule 19A.13(2) of the Listing Rules. Ms. Lai is a Director of Corporate Services of Tricor Services Limited.