Exhibit 8.1

List of Principal Subsidiaries and Variable Interest Entities of the Registrant*

Subsidiaries

  ​ ​ ​

Place of Incorporation

Nova (Cayman) Inc.

Cayman Islands

TouchPal HK Co., Limited

Hong Kong

CooTek Hong Kong Limited

Hong Kong

Techdelic Investment Co., Limited

Hong Kong

TouchPal, Inc

United States

Smillage Inc.

United States

VitalTek, Inc.

United States

Shanghai Chule (CooTek) Information Technology Co., Ltd.

People’s Republic of China

Variable Interest Entities

  ​ ​ ​

Place of Incorporation

Molihong (Shenzhen) Internet Technology Co., Ltd.

People’s Republic of China

Shanghai Lingdian Internet Technology Co., Ltd.

People’s Republic of China


*Other entities of CooTek (Cayman) Inc. have been omitted from this list since, considered in the aggregate as a single entity, they would not constitute a significant subsidiary.