TORONTO, July 31, 2025 (GLOBE NEWSWIRE) -- Electra Battery Materials Corporation (NASDAQ: ELBM; TSX-V: ELBM) ("Electra" or the "Company") announces the start of metallurgical testing on cobalt feedstock from two strategic North American sources: the historic Cobalt Camp in Ontario and home to Electra's refinery, and the Company's Iron Creek cobalt and copper project in Idaho. The objective of this initiative is to strengthen and diversify Electra's cobalt refinery feedstock pipeline by integrating domestic ...