Steel Dynamics Inc. STLD

What this company does

Steel Dynamics, Inc. manufactures and sells steel products, processes and sells recycled ferrous and nonferrous metals, and fabricates and sells steel joist and deck products. Our steel operations consist of electric arc furnace steel mills that produce steel from ferrous scrap and scrap substitutes using continuous casting and automated rolling mills, along with steel coating, processing and warehouse operations, and sell directly to end users, steel processors, steel fabricators and service centers. Metals Recycling operations include both ferrous and nonferrous scrap metal processing, transportation, marketing, brokerage and scrap management services. Our steel fabrication operations consist of seven New Millennium Building Systems plants that serve the non-residential construction industry throughout the United States. Our aluminum operations consist of a 650,000-metric-ton recycled aluminum flat rolled products mill in Columbus, Mississippi, two 150,000-metric-ton satellite recycled aluminum slab centers in Central Mexico and the southwestern United States, and an ancillary recycled aluminum deox-rod facility. Steel Dynamics, Inc. was co-founded by Mark D. Millett in 1993.

Written from the business description in Steel Dynamics, Inc.'s annual report to the U.S. Securities and Exchange Commission, filed 27 February 2026. Every sentence was checked against that document before publication.