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North American Stainless appoints Clive Grannum as its new CEO

Tuesday April 22, 2025 |
Cristóbal Fuentes will step down as the CEO of NAS and will remain in a Senior Advisor position.

The current CEO of North American Stainless (“NAS”), a wholly-owned U.S.  subsidiary of the Acerinox Group, Cristóbal Fuentes, will cease his executive functions on May 21 of  this year, after an astonishing 44 years of service with the company. He has been the CEO of NAS  since 2010, and he will continue to provide services to the company, as a Senior Advisor. NAS and  the entire Acerinox Group thank him for his dedication and commitment over the years and his  enormous contribution to the success of the Group.  

NAS and the Acerinox Group extend a warm welcome to NAS’s new CEO, Clive Grannum.  

Clive Grannum leads Performance Materials, Materion’s largest global business and a global leader  in the production of specialty alloy products, clad metals, beryllium-based metals and ceramics,  metal matrix composites, niobium-hafnium metals, and tantalum materials. 

Before joining Materion in 2018, Clive Grannum was President of Olin’s Global Chlorinated Organics  business, the world’s largest chlorinated organics enterprise. Previously, he served as President,  Global Chlorinated Organics at The Dow Chemical Company, and before that he served as Vice  President and General Manager of Plastics Additives at Rohm and Haas. He also held several roles  of increasing responsibility at The BOC Group and The ICI Group with his last role being Vice President  of ICI and Senior Vice President, Uniqema Americas. 

Clive Grannum earned a Bachelor of Science degree in aerospace engineering from Boston  University and an MBA from Yale University. 

He currently serves on the Board and is a member of the Audit and Compensation Committees of  AZZ Inc., a market-leading metals treatment company. 

As the Acerinox Group’s CEO, Bernardo Velázquez, has stated, “we are extremely excited about this  new incorporation and we look forward to having Clive Grannum on the team. Without a doubt, he  will reinforce the integration of our operations in the United States and he will also contribute to the  implementation of our strategic plan”.