The SUMITOMO Group is believed to be the oldest commercial conglomerate in the world, with a history extending over more than 400 years. With production at its core, the Group has diversified into a variety of related activities and has made efforts to vertically integrate these units over the years.

The company’s founder, Masatomo Sumitomo, was a Buddhist monk, and Tomomoch i Sumitomo, the family’s second generation leader, started the copper smelting business. Tomoyoshi Sumitomo, the fourth generation leader of the Sumitomo family, discovered the Besshi copper mine. Throughout this time, Masatomo’s “SUMITOMO entrepreneurial spirit” has been passed down from generation to generation, first through the Edo era and then through the Meiji era until it was integrated into the modern precepts of SUMITOMO.

SUMITOMO Group is therefore not a group of companies linked only by the logic of capital, they are a group of companies that, in their DNA, share, maintain and transmit the precepts of the SUMITOMO entrepreneurial spirit. Always act with integrity and reliability, shy away from temptations. of easy financial gain, to work for the public good and in the public interest, to repay their intrinsic debt to the nation and society, to plan with a forward-looking perspective, to recognize human resources as their most important resource and to give weight to technology.



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