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Exhibit 8.1

Subsidiaries of MAC Copper Limited

The table below sets forth a complete list of the Company’s subsidiaries as of December 31, 2024:

Name of Subsidiary

    

Jurisdiction of Incorporation

Cobar Management Pty. Limited

Australia

MAC AU 1 Pty Ltd

Australia

MAC AU 2 Pty Ltd

Australia

MAC AU 3 Pty Ltd

Australia

MAC AU 4 Pty Ltd

Australia

Metals Acquisition Corp. (Australia) Pty Ltd

Australia