Sumicom

Sumitomo Corporation
Company type	Public (K.K.)
Industry	General trading, Conglomerate
Predecessor	The Osaka North Harbour Co., Ltd.
Founded	1919; 107 years ago
Founder	Masatomo Sumitomo (founder of Sumitomo Group origins)
Headquarters	Chiyoda, Tokyo, Japan
Area served	Worldwide
Key people	Kuniharu Nakamura (President)
Products	Trading, natural resources, automotive, infrastructure, chemicals, manufacturing
Parent	Sumitomo Group
Website	www.sumitomocorp.com/en/jp

Adapted from the English Wikipedia article Sumicom, available under CC BY-SA 4.0Updated 8 August 2025

is a leading global sōgō shōsha general trading enterprise and a multifaceted corporation. Established in 1919, it stands as a vital constituent of the Sumitomo Group.

The company’s shares are publicly listed on the Tokyo, Nagoya, and Fukuoka stock exchanges and it is featured in the TOPIX and Nikkei 225 indices. It consistently ranks among the top three sōgō shōsha companies worldwide.

History

The origins of the Sumitomo Group, with Sumitomo Corporation as a principal member, date back to the 17th century when Masatomo Sumitomo founded a book and medicine shop in Kyoto. Over time, the family diversified into copper mining—most notably at the Besshi copper mine—as well as textiles, sugar, and pharmaceutical trade. Despite challenges following the Tokugawa shogunate’s collapse in the 1860s, Sumitomo retained its mining ventures, modernized operations, and evolved into a prominent zaibatsu by the early 1900s.

In December 1919, Sumitomo Corporation was established as The Osaka North Harbour Co., Ltd., initially focusing on real estate and port development. The company merged with Sumitomo Building Co., Ltd. in 1944 to become Sumitomo Building and Real Estate Co., Ltd.. Following World War II, destruction from wartime damage and Allied occupation led to the dismantling of Sumitomo’s industrial holdings. Subsequently, the firm transitioned into general trading under the name Nippon Engineering Co., Ltd., becoming publicly listed on several stock exchanges by 1949.

During the 1950s, deregulation permitted Nippon Engineering to reestablish connections with other Sumitomo Group entities via the "White Water Club" (Hakusui-kai). The company expanded internationally by opening offices in Mumbai (1950) and New York City (1952), adopting the name Sumitomo Shoji Kaisha, Ltd.. By the 1960s, Sumitomo aspired to join Japan’s leading trio of general trading firms alongside Mitsubishi and Mitsui. The Tokyo head office was inaugurated in 1970; after merging with Sogo Boeki Co., Ltd., it took on the name Sumitomo Corporation in 1978. From 1955 through 1975, transaction volumes surged tenfold each decade, supported by a keiretsu system centered around Sumitomo Corporation and Sumitomo Bank.

Up until 2014, Sumitomo concentrated heavily on natural resource sectors but faced significant losses from investments in tight oil (shale oil) and other energy projects. President Kuniharu Nakamura attributed these setbacks to market volatility and limited expertise. These difficulties enabled Itochu to overtake Sumitomo as Japan’s third-largest general trading company. In response, Sumitomo announced a strategic pivot in 2015 toward automotive, infrastructure, and other non-resource industries.

Significantly, during the fiscal year ending August 2020, Berkshire Hathaway acquired stakes exceeding 5% in Sumitomo Corporation along with four other major Japanese trading companies, signaling strong international investor confidence.

Projects and investments

Among Sumitomo’s most substantial investments is the Ambatovy nickel mining project located in Madagascar, where approximately $2.4 billion had been committed by 2015 through a joint venture including Korea Resources.

Sumitomo holds an equal partnership (50%) in SES Water, a UK-based water utility company, alongside Osaka Gas.

As a key investor in the Turo car-sharing platform, Sumitomo has plans to facilitate Turo’s market entry into Japan around 2020.

Collaborating with Mitsubishi Heavy Industries, Sumitomo worked together with the Philippines Department of Transportation to renovate Manila’s MRT Line 3 between 2019 and 2021. The company had previously managed this line from 2000 until 2012 before maintenance issues led to deterioration.

In partnership with Japan Transport Engineering Company (J-TREC), Sumitomo manufactures commuter train sets for the Philippine National Railways's North–South Commuter Railway, delivering a total of 51 train sets (408 cars) under two contracts. They are also producing 30 eight-car train sets (240 cars) for the upcoming Metro Manila Subway.

Since May 2020, Sumitomo has invested in LRT Line 1 via its involvement in Light Rail Manila Corporation—a consortium comprising Metro Pacific Investments Corporation, Ayala Corporation, and Macquarie Infrastructure Holdings (Philippines) PTE Ltd.

Subsidiaries

Aimo Park
Aimo Solution
Bluewell Insurance
Cantex
Clickstream Capital
Fyffes
Sumitomo Electric Egypt
Global Partnership for Ethiopia (holding 27.2%)
GTS Rail Operations (holding 17.5%)
Pacific Summit Energy
Petro Summit Pte Ltd (Singapore)
Presidio Ventures
SCSK
SMBC Finance & Lease
Sumitomo Corporation Equity Asia Limited
Sumitomo Wiring Systems Ltd.
Sumitomo Corporation Global Commodities (London & Singapore offices)
Sumitec International (Moscow)
Summit Biotech
TBC Corporation (50% ownership) (includes Big O Tires, Midas International, LLC.)
Hartz Mountain Corporation (manufacturer of pet products; acquired in 2004; 51% stake sold to Unicharm in 2011)
Crunchyroll SC Anime Fund (joint venture for anime production with Crunchyroll)
Sumitomo Chemical Company Limited
Sumitomo Forestry NZ Limited
Summit Fresh Foods New Zealand Limited
Summit Forests New Zealand Limited
New Zealand Aluminium Smelters Limited (20.64% ownership)
Kiriu Corporation

Shareholders

External links

Trading

CFTC – Arrangements Concerning Sumitomo's Copper Trading Activities