ArcelorMittal is a multinational steel manufacturing corporation headquartered in Luxembourg City. It was formed in 2006 from the takeover and merger of Arcelor by Indian-owned Mittal Steel.
ArcelorMittal is the world's largest steel producer, with an annual crude steel production of 92.5 million metric tonnes as of 2018. It is ranked 120th in the 2019 Fortune Global 500 ranking of the world's largest corporations.
The company is involved in research and development, mining, and steel. ArcelorMittal in 2016 produced around 90 million tons of steel.
As of May 2017, the company made 200 unique steel grades for automotive purposes, half of which were introduced since 2007. Among the steel varieties are Usibor 2000, which the company announced in June 2016 and released later that year.
Upon release, the high-strength automotive steel was said to be about one-third stronger than other steels then available for carmaking.
According to en.wikipedia