CooTek (Cayman) Inc. announced the resignation of Mr. Michael Jialiang Wang as Chief Executive Officer (?CEO?) and the appointment of Ms. Susan Qiaoling Li, a director and the president of the Company, to succeed Mr. Wang?s position as CEO of the Company, both effective on November 30, 2021. The Company holds the belief that the transition will be smooth and will not have any material adverse impact on the Company's business operations. Mr. Wang will continue serving as a director of the Company and will start to serve as a consultant of the Company from November 30, 2021. Mr. Wang?s resignation from his position as CEO of the Company was due to personal reasons and was not due to any disagreement with the Company regarding its business, finance, accounting and/or any other affairs.