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Private company

Sumitomo Metal Industries

Logo: Sumitomo Metal Industries Ltd., Public domain, via Wikimedia Commons3

Japanese steel manufacturer

Sumitomo 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 Corporation 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.2 It was founded by Sumitomo Group.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1897Founded1

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SUMITOMO mura 01
Photo: Nkns, CC BY-SA 3.0, via Wikimedia Commons4

Sumitomo 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 Corporation in 2012 to form Nippon Steel & Sumitomo Metal Corporation, the third largest steel manufacturer in the world as of 2015.2

The story

Founded by Sumitomo Group in 1897.1

Products and brands

  • steel

Listed on Wikidata.1

Timeline

  1. Oct 1, 2012Dissolved Dissolved1
  2. 1897Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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