Russian steel maker MMK announced that Magnitogorsk Iron and Steel Works’ steel melting shop’s converters have produced the 250 millionth tonne of steel. The first converter steel was smelted at MMK in October 1990. After 16 years, it produced the 100 millionth tonne of steel, 150 million tonnes in 2012 and 200 millionth tonne in in 2017 and now five years later a milestone event is once again at the CCC of Magnitogorsk, the production of the 250 millionth tonne of steel. The transition from open-hearth to BOF steel smelting was an important milestone in the history of MMK. Today, the CCC is the main steel-smelting division of the plant, in which about 80% of all PJSC MMK's steel is smelted. The oxygen-converter shop of the Magnitogorsk Iron and Steel Works is one of the most productive steel-smelting shops in the world. The updated equipment of the CCC Magnitogorsk allows the production of a wide range of branded products. This steel is used for the production of large diameter pipes, in the automotive, ship and mechanical engineering.