CooTek Files Annual Report on Form 20-F for Fiscal Year 2021

SHANGHAI,April 29,2022 --CooTek (Cayman) Inc. (NYSE: CTK) ("CooTek" or the "Company"),a global mobile internet company,today announced that it filed its annual report on Form 20-F for the fiscal year endedDecember 31,2021with the Securities and Exchange Commission (the "SEC") onApril 29,2022.

The annual report can be accessed on the Company's investor relations website athttps://ir.cootek.com/as well as the SEC's website athttp://www.sec.gov.

The Company will provide a hard copy of its annual report containing the audited consolidated financial statements,free of charge,to its shareholders and ADS holders upon request. Requests should be directed to the Company's IR Department atir@cootek.com.

About CooTek (Cayman) Inc.

CooTek is a mobile internet company with a global vision that offers content-rich mobile applications,focusing on three categories: online literature,scenario-based content apps and mobile games. CooTek's mission is to empower everyone to enjoy relevant content seamlessly. CooTek's user-centric and data-driven approach has enabled it to release appealing products to capture mobile internet users' ever-evolving content needs and helps it rapidly attract targeted users.

For more information on CooTek,please visit https://ir.cootek.com.

For investor enquiries,please contact:

CooTek (Cayman) Inc.

Mr.Jacky Lin

Email:ir@cootek.com

ICA Investor Relations (Asia) Limited

Mr.Kevin Yang

Phone: +86-21-8028-6033

Email:cootek@icaasia.com

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