ArcelorMittal S.A. is a multinational steel and mining company headquartered in Luxembourg City, Luxembourg. It produces a broad range of steel products, including flat steel, long steel, pipes, tubes, and semi-finished materials used across industrial supply chains. The company also operates mining businesses that supply iron ore and metallurgical coal, supporting its integrated model from raw materials to finished steel. ArcelorMittal serves customers in automotive, construction, appliances, packaging, engineering, energy, transport, and machinery markets, with operations and sales spread across multiple regions. Its business is organized into regional steel segments, sustainable solutions, and mining, giving it a central role in supplying essential materials to global manufacturing and infrastructure industries.