Exhibit A

AGREEMENT

Each of the undersigned hereby consents and agrees to this joint filing to Schedule 13G for the Common Shares of Electra Battery Materials Corporation.


 
October 24, 2025
 
(Date)
 
 
 
WHITEBOX ADVISORS LLC
 
 
 
/s/ Gina Scianni
 
(Signature)
 
Gina Scianni
Associate General Counsel & Deputy Chief Compliance Officer
 
(Name/Title)
 
 
 
October 24, 2025
 
(Date)
 
 
 
WHITEBOX GENERAL PARTNER LLC
 
 
 
/s/ Gina Scianni
 
(Signature)
 
Gina Scianni
Authorized Signatory
 
(Name/Title)