Steel Dynamics Inc (SDI) is a diversified domestic steel producer and metal recycler, with a steel fabrication manufacturing platform. Its products include sheet steel products, long steel products, and various grades of processed ferrous and nonferrous scrap metals. The company operates in the steel, metals recycling, and aluminum industries, serving sectors such as construction, automotive, manufacturing, transportation, heavy and agricultural equipment, energy, and pipe and tube markets. SDI serves customers such as steel processors, service centers, and fabricators to manufacturers, construction contractors, and governmental entities. The company operates several manufacturing centers, including electric arc furnace steel mills and steel fabrication plants across the US and Mexico. As of December 31, 2025, the company's steel operations achieved annual shipments of 13.7 million tons.

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