The story
Founded by Shun'ya Tōji on Dec 24, 1919, in Osaka.1
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.
The Sumitomo family was close to the Tokugawa shogunate throughout the Edo period. During the 1860s, this relationship became a liability for the firm as the Tokugawa clan warred with rivals in western Japan. Following the Tokugawas' defeat, Sumitomo was almost ruined and under pressure to sell the Besshi mine, which by that point was nearly unworkable. However, Sumitomo kept the mine and improved its output through adoption of new Western techniques. During the rapid westernization of Japan in ensuing decades, Sumitomo started various new trading, manufacturing and financing businesses, becoming one of the major zaibatsu of early 20th century Japan.
Sumitomo Corporation was incorporated in December 1919 as The Osaka North Harbour Co., Ltd. to engage in real estate management, land reclamation, land grading, harbor repair construction and related work in the Osaka northern harbor region. In 1944, the company merged with Sumitomo Building Co., Ltd. (established August 1923; capital stock 6.5 million yen) to form Sumitomo Building and Real Estate Co., Ltd.
Sumitomo was integral to Imperial Japan's war machine during World War II, but the war destroyed most of Sumitomo's industrial infrastructure within Japan. The ensuing Allied occupation led to the forced breakup of the largest Japanese companies, including Sumitomo, and transfer of Japanese industrial assets as part of reparations. Sumitomo Building transitioned to general trading, looking to handle products from Japan's major manufacturing firms in various industries, and changed its name to Nippon Engineering Co., Ltd. (Nihon Kensetsu Sangyo Kaisha), starting a new existence as a general trading firm with a sales staff of just 32 people. The firm listed its shares on the Osaka, Tokyo and Nagoya Stock Exchanges in 1949.
As regulations on large companies were relaxed in the 1950s, Nippon Engineering resumed closer relations with other Sumitomo Group companies through the "White Water Club" (Hakusui-kai), a coordinating meeting of company presidents. The company began to grow overseas in the 1950s, starting business in Mumbai in 1950 and in New York City in 1952. It changed its name to Sumitomo Shoji Kaisha, Ltd. in 1952. By the 1960s Sumitomo officially aimed to be one of the "Big Three" general trading companies, alongside Mitsubishi and Mitsui. In 1970, Sumitomo established a second head office in Tokyo and merged with Sogo Boeki Co., Ltd. Sumitomo adopted its current English name, Sumitomo Corporation, in 1978. The company's transactional volume increased by a factor of ten from 1955 to 1965, and again by a factor of ten from 1965 to 1975. Like its zaibatsu cohorts Mitsubishi and Mitsui, Sumitomo established a keiretsu business group centered on itself and Sumitomo Bank.
Sumitomo's strategy focused on natural resources through 2014, when the company booked hundreds of billions of yen in losses on tight oil (shale oil) and other energy-related investments. The company's president, Kuniharu Nakamura, attributed these losses to both adverse market factors and Sumitomo's relative inexperience in the field. As a result of these setbacks, Sumitomo was overtaken by Itochu as Japan's third-largest general trading company. Sumitomo announced in 2015 that it would refocus its business on the automotive and infrastructure industries and other non-resource businesses.
Berkshire Hathaway acquired over 5% of the stock in the company, along with four other Japanese trading houses, over the 12-month period ending in August 2020.
From Wikipedia’s article on Sumitomo Corporation, shared under CC BY-SA 4.0.6