Nippon Steel Corporation is a Japanese steel manufacturing company, headquartered in Marunouchi, Chiyoda, Tokyo. The company has four business segments, which are steelmaking, engineering, chemicals, and systems solutions. It is the largest producer of crude steel in Japan and the fourth largest in the world. The company is on the Forbes Global 2000 list, ranked 1971 in 2023. The company is the third incarnation of the Nippon Steel name, each time with a slightly different spelling or pronunciation. The original company, known as Japan Iron & Steel Co., Ltd, was split into two separate companies in 1950. These two companies later merged in 1970 to form Nippon Steel Corporation and this name lasted until 2012, when it merged with Sumitomo Metal Industries and rebranded to its post-merger name. The company’s English name reverted to its 1970 name in 2019, while its Japanese name returned to the original 1934 name. Wikipedia