2014: Announces plan for new cold heading wire plant in China.
2015: Acquires another 10% stake in Boggabri coalmine from Japan’s Idemitsu.
2016: Announces 2017 consolidation plan for Nisshin Steel.
2016: SSMC and Vallourec merge seamless pipe and tube business in Brazil.
2016: Court battle with Technint over control of Usiminas in Brazil.
2017: CEO of NSSMC subsidiary Usiminas dismissed 23-Mar-17.
2017: NSSMC reverses seemingly wrongful dismissal of Usiminas CEO.
2017: NSSMC completes purchase of 51% stake in Nisshin Steel.
2018: Acquires India's Essar Steel (together with ArcelorMittal).
2019: South Korean court approves NSSMC asset seizure.
2019: ArcelorMittal & NSSMC complete acquisition of Essar Steel.
2020: Announces intended 10% cut in crude steel capacity.
2020: Increases equity investment in Vallourec.
1934 consolidation involved the Wanishi Iron Works, the Kamaishi Mines, Mitsubishi Iron, Kyusyu Steel, Tokyo Steel and other assets.
1975: Nippon ranking as top steelmaker (with US Steel displaced from the top position) is by crude steel production volume.
2003: Arcelor, Baosteel, Nippon jv centres on a Shanghai facility close to upstream plant of Bao Steel - which will focus on cold rolling and galvanising [annual capacity of 1.7 mt of flat rolled steels].
2003: The merger of the stainless steel divisions of Sumitomo Metal Industries and Nippon steel created Japan's largest stainless steelmaker - Nippon Steel and Sumikin Stainless Steel Corporation [NSSC].
2006: Following Mittal's bid for Arcelor, most Japanese steelmakers took measures to prevent hostile takeover bids incl Nippon, JFE, Sumitomo Metal Industries and Kobe Steel Ltd.
2011: Tata / Nippon jv is for 600kt/yr automotive cold-rolled steel continuous anneal and process line at Jamshedpur, India.
2011: Merger of Nippon Steel and Sumitomo Metal Industries is subject to antitrust approval by the Japan Fair Trade Commission [review underway as at mid-2011].
2012: In a 50-50 jv named NS BlueScope Coated Products, Nippon Steel will acquire half of BlueScope's interest in its South East Asian and North American building products businesses.
2012: With the creation of Nippon Steel & Sumitomo Metal Corporation, the company became the second largest steelmaker in the world.
2013: Expected launch of Tenigal [hot-dip galvanized and galvannealed sheets] in Monterrey, Mexico.
2013: Nippon Steel owns 33.3% stake in the Mozambique mine project and is looking to commence production in 2016. The Revuboe coal mine is estimated to have coking coal reserves of ~1.4 billion tonnes and is expected to produce 5 million tonnes of coking coal per year at its peak [which Nippon aims to reach by 2019].
Nippon Steel & Sumitomo Metal Corporation and ArcelorMittal in November 2013 acquired ThyssenKrupp's Alabama steel mill in Calvert for $1.55 billion.
2016: NSSMC is the largest shareholder in Japan's fourth-largest steelmaker Nisshin Steel with a stake of around 8 percent. NSSMC plans to increase this stake to somewhere between 51-66% in the next 18 months or so. Nisshin Steel will then become a subsidiary of Nippon Steel (around March 2017) but Nisshin Steel's shares will remain listed on the Tokyo Stock Exchange.
2016: The businesses of (i) Vallourec & Sumitomo Tubos do Brasil Limitada, which is a joint venture of Vallourec Group, NSSMC Group and Sumitomo Corporation, and is a Brazilian seamless pipe manufacturing company and (ii) Vallourec Tubos do Brasil S.A., which is Vallourec's fully-owned subsidiary of a seamless pipe manufacturing and sales company in Brazil, merged in October 2016 to become Vallourec Solucoes Tubulares do Brasil.
2016: Note that at the end of 2016, the dominant shareholders of Usiminas included NSSMC with 21.1%, Ternium/Tenaris with 19.8% and the Usiminas Pension Fund with 4.8% equity ownership.
2017: Nippon Steel & Sumitomo Metal Corporation completed procedures to acquire 51% of the shares of common stock of Nisshin Steel Co and made the company a subsidiary of NSSMC in March 2017.
2018: Creditors of Essar Steel India in October 2018 approved a joint offer by ArcelorMittal and Japan's Nippon Steel & Sumitomo Metal Corporation as final bidders for the debt-laden firm.
2019: Korean assets of Nippon Steel & Sumitomo Metal Corporationa siezed over Tokyo policy of forcing Koreans to work for little to no pay during Japan's colonial rule of the Korean Peninsula. Assets involved were Japanese steelmaker's 30% equity holding in POSCO-Nippon Steel RHF Joint Venture, worth ~$9.8 million.
2019: NSSMC aand ArcelorMittal announced on 16th December 2019 their joint acquisition of India's Essar Steel. The new venture will be named ArcelorMittal Nippon Steel India.
2020: Nippon Steel announced in January 2020 that it would be cutting steel capacity. The company indicated that it would close both blast furnaces at its Kure Works within a few years; and that it might even shut down the entire steelworks in due course in the face of rising Chinese competition.
Stagnant domestic economic growth was cited as a further factor behind the closure decision.