Cleveland-Cliffs Inc. (NYSE: CLF) is the largest integrated steel producer in the United States, controlling the entire value chain from iron ore mining to the production of finished steel products for the automotive, construction, and energy industries. Founded in 1847, the company has undergone a major transformation in recent years — through the acquisitions of AK Steel and ArcelorMittal USA, it evolved from a pure mining company into a vertically integrated steelmaker. Today, Cleveland-Cliffs is seeking to expand its portfolio into rare earth mining, viewing it as a strategic growth segment for the future. This move reflects the company’s response to growing geopolitical tensions and rising demand for materials essential to electric vehicles and defense systems. CLF thus represents one of the most intriguing U.S. industrial stocks positioned at the intersection of traditional manufacturing and the new era of critical minerals.