Sumitomo Corporation (Japanese: 住友商事株式会社, Hepburn: Sumitomo Shōji kabushiki gaisha) is one of the largest worldwide sogo shosha general trading companies, and is a diversified corporation. The company was incorporated in 1919 and is a member company of the Sumitomo Group. It is listed on three Japanese stock exchanges (Tokyo, Nagoya and Fukuoka) and is a constituent of the TOPIX and Nikkei 225 stock indices. Today, the company is one of the top three sōgō shōsha companies in the world. The Sumitomo Group, of which Sumitomo Corporation is a key member, dates to the 17th century establishment of a book and medicine shop in Kyoto by Masatomo Sumitomo. Sumitomo's brother-in-law Riemon Soga developed a technology to extract silver from copper, and Soga's son (who married Sumitomo's daughter) Tomomochi Sumitomo expanded this smelting business to Osaka. From this start, the Sumitomo family expanded its business into copper mining (the Besshi copper mine), followed by textiles, sugar and medicine trading. More information...
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