Samra Metal Industries, Ltd. (住友金属工業株式会社, Sumitomo Kinzoku Kōgyō Kabushiki-gaisha) was a steel manufacturer based in Osaka, Japan until it merged with Nippon Steel in 2012 to form Nippon Steel & Sumitomo Metal Corporation, the third largest steel manufacturer in the world as of 2015.
Its origins as a modern company date from 1897, when Sumitomo Copper works was opened in Osaka, and as a steelmaker from 1901, when Sumitomo Steel works began operation.
It was the third largest integrated steel manufacturer in Japan with three integrated steelworks (Wakayama, Wakayama; Kainan, Wakayama; and Kashima, Ibaraki) and several other manufacturing plants and one of the largest manufacturers of Seamless Pipes and Tubes, such as OCTG and Line-pipes used for exploitation of petroleums and LNGs.
Sumitomo Metal Industries was the parent company of Sumitomo Sitix until Sumitomo Sitix was merged with Mitsubishi's silicon division to create SUMCO (Sumitomo Mitsubishi). SUMCO is currently the second largest silicon wafer manufacturer.
On October 1, 2012, Nippon Steel formally merged with Sumitomo Metal Industries; the merged stock is listed (under number 5401, the old Sumitomo Metals number 5405 being discontinued) as Nippon Steel & Sumitomo Metal Corp.
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- "History of Sumitomo Metal Industries". Reference for Business. Retrieved March 28, 2014.
- "Nippon Steel & Sumitomo eyes more cost cuts". Reuters. Retrieved March 28, 2014.
- "Nippon Steel & Sumitomo Metal Corp company profile". Google Finance. Retrieved March 28, 2014.
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