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List of Company Subsidiaries1

Subsidiary
Jurisdiction
T1 Energy Holding Inc.
Delaware
T1 Energy US, LLC
Delaware
Alussa Energy Acquisition Corp.
Cayman Islands
T1 Energy Norway AS
Norway
T1 Energy Giga Arctic AS
Norway
T1 Energy Norway Holding AS
Norway
FREYR Battery Finland Oy
Finland
FREYR Battery Finland Joint Venture Oy
Finland
FREYR Battery Luxembourg S.à r.l.
Luxembourg
T1 Energy Singapore PTE. Ltd.
Singapore
T1 G2 Austin Solar Cell LLC
Delaware
T1 G1 Dallas Holding Inc.
Delaware
T1 G1 Dallas Midco Inc.
Delaware
T1 G1 Dallas Associated Entity LLC
Texas
T1 G1 Dallas Solar Module LLC
Texas





1 Based on T1 Energy Inc.’s company structure chart dated as of March 24, 2026.