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Eos Energy names John Mahaz as chief operating officer

August 18, 2025 8:00 AM EDT

Eos Energy Enterprises, Inc. (NASDAQ: EOSE) appointed John Mahaz as chief operating officer to lead operations, supply chain, and manufacturing strategy during the company's commercial scale-up phase, according to a press release statement.



Mahaz brings more than 30 years of experience in global manufacturing, operations, and supply chain management from his tenure at Jabil Inc. (NYSE: JBL). He most recently served as senior vice president of operations for Europe and the Americas at the manufacturing solutions provider, overseeing more than 70,000 employees across 30+ factories worldwide and generating more than $14 billion in annual revenue.



During his career, Mahaz led multiple manufacturing facilities that won the Shingo Prize for Operational Excellence. His experience spans defense, aerospace, automotive, network infrastructure, data storage, and healthcare industries. He also led the rebuild of manufacturing operations in Puerto Rico following Hurricane Maria.



"Achieving our growth objectives requires operational excellence," said Joe Mastrangelo, Eos chief executive officer. "John is a seasoned leader with a clear playbook for globally scaling operations."



Mahaz said the company is positioned at an inflection point for scaling operations. "The opportunity to replicate production lines and build a global manufacturing footprint around a transformative American-made technology is exactly the kind of challenge I'm built for," he stated.



Eos designs and manufactures zinc-based battery energy storage systems in the United States. The company's battery technology uses what it calls Znyth chemistry, which the company describes as a non-flammable alternative to lithium-ion technology for utility-scale and commercial energy storage applications.


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