Form: 20-F

Annual and transition report of foreign private issuers [Sections 13 or 15(d)]

March 26, 2025


Exhibit 8.1
List of Principal Subsidiaries

Name of Subsidiary    
Place of Incorporation
Elmtree Inc.
Cayman Islands
Promethean World Limited
England and Wales
Chalkfree Limited
England and Wales
Promethean (Holdings) Limited    
England and Wales
Promethean Inc.
Delaware, USA
Promethean SAS
France
Promethean Technology (Shenzen) Limited
China
Promethean Poland sp. z.o.o.
Poland
Promethean Limited
England and Wales
Promethean GmbH
Germany
Promethean Solutions LLP
India