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Sumitomo Group
The Sumitomo Group (Japanese: 住友グループ, Hepburn: Sumitomo Gurūpu) is a group of autonomous Japanese multinational companies. HistoryThe Sumitomo Group traces its roots to a bookshop in Kyoto founded circa 1590 by Masatomo Sumitomo, a former Buddhist monk. Even today, the corporation is run by his "Founder's Precepts", written in the 17th century. Copper refining made the company famous. Riemon Soga, Masatomo Sumitomo's brother-in-law, learned Western methods of copper refining.
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