Magnitogorsk Iron and Steel Works (Magnitogorskij Metallurgicheskij Kombinat, MMK, Магнитогорский Металлургический Комбинат) is a manufacturer of iron and steel products. It provides the preparation of iron ore and downstream processing of rolled steel. The company offers rolled steel, flat, long, coated, and galvanized products, and tin plates. MMK serves pipe-making, automotive, railroad machinery, shipbuilding, construction, and other industries.