Mr. Trent Mell reports

ELECTRA ANNOUNCES NOMINATION OF GERARD HUEBER, REAR ADMIRAL, U.S. NAVY (RETIRED) TO BOARD OF DIRECTORS

Electra Battery Materials Corp. has nominated Gerard Hueber, Rear Admiral, U.S. Navy (retired), to its board of directors.

Mr. Hueber is a decorated naval leader and seasoned executive with decades of experience spanning the U.S. Navy and industry. Most recently, he served as the vice-president of naval power requirements and capabilities, where he oversaw an $8-billion naval portfolio in Raytheon, a business in RTX, which is the world's largest aerospace and defence company. In this role, he provided executive oversight of global teams, drove business development and strategy, and managed customer relationships with U.S. and international defence partners, creating long-term value from customers, markets and relationships.

"Admiral Hueber's distinguished career in the U.S. Navy and industry have provided him with invaluable perspective on the intersection of national security and industry," said Trent Mell, chief executive officer of Electra. "As Electra advances its mission to deliver the critical minerals that unlock energy security and supply chain resilience in North America, his insight will further support our strategy and strengthen our leadership team."

"I am honoured to be nominated to Electra's board and to join such a capable and committed team," commented Mr. Hueber. "I look forward to contributing my experience in support of Electra's strategy and long-term growth and working alongside my fellow directors to help the company realize its full potential. Electra's vision will onshore critical mineral supply chains, reduce reliance on China, and strengthen national and economic security. I am excited to play a part in that effort."

"We look forward to welcoming Admiral Hueber to the board," said John Pollesel, chair of Electra's board. "His depth of experience in national security, policy and industry will complement the strengths of our board and provide valuable insight as Electra pursues its strategy to deliver critical minerals for North America's energy future."

Mr. Hueber's nomination follows the recent addition of David Stetson, further strengthening Electra's board with directors who bring additional strategic depth and operational expertise. Mr. Hueber's insights into defence strategy and global supply chain resilience, combined with Mr. Stetson's capital markets and restructuring experience, add accretive value to the board as Electra advances its recently announced restructuring and recapitalization (Aug. 21, 2025).

During his 30-plus years career in the navy, Mr. Hueber commanded Expeditionary Strike Group 3, Destroyer Squadron 18 and USS STETHEM (DDG 63). He led large and complex organizations, directed maritime security co-operation initiatives across Europe and Africa, and worked U.S. defence strategy in the Office of the Secretary of Defense. He spearheaded transformation efforts at the highest levels of the navy and his leadership extended to state-level talks for maritime operations and ballistic missile defence, humanitarian assistance and disaster relief operations, global defence strategy, force structure, and global force posture.

Mr. Hueber holds a bachelor of science from the U.S. Naval Academy and a master of arts in national security and strategic studies from the U.S. Naval War College. He is also a fellow of Massachusetts Institute of Technology's Seminar XXI on Foreign Politics, International Relations and National Interest. Based in Alexandria, Va., he continues to advise organizations on defence, strategy and leadership.

About Electra Battery Materials Corp.

Electra is a leader in advancing North America's critical minerals supply chain for lithium-ion batteries. Currently focused on developing North America's only cobalt sulphate refinery, Electra is executing a phased strategy to onshore critical minerals refining and reduce reliance on foreign supply chains. In addition to establishing the cobalt sulphate refinery, Electra's strategy includes nickel refining and battery recycling. Growth projects include integrating black mass recycling at its existing refining complex, evaluating opportunities for cobalt production in Becancour, Que., and exploring nickel sulphate production potential in North America.

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