Overview
Mitsui & Co., Ltd. is a global trading and investment company headquartered in Tokyo. It operates across a broad range of sectors, including energy and natural resources, metals, mobility, chemicals, infrastructure, digital services, healthcare, food and retail. Its activities include trading, investment and business development, connecting businesses and markets across its portfolio.[1] The company’s stated mission is “Build brighter futures, everywhere,” and its vision is to be “360° business innovators.” [2]
Mitsui reported a network of 120 offices in 62 countries and regions and 55,463 consolidated employees as of March 31, 2026.[3][4] For the year ended March 31, 2026, it reported revenue of ¥13.995 trillion.[5] Its predecessor was established in 1876; the present company traces its corporate history through Daiichi Bussan, established in 1947 and renamed Mitsui & Co. in 1959.[6] [1][2][3][4][5][6][1][2][3][4][5][6]
Products & services
Mitsui & Co.’s products include iron ore, metallurgical coal, copper, nickel and aluminum. Its portfolio also encompasses methanol, ammonia and other basic chemicals; solvents, coating chemicals, plastics and crop-protection products; and food products including grain, sugar and ingredients, compound feed, poultry, salmon, meat, rice and shrimp.[7][8][9][10][11] Its FY March 2025 disclosures report equity production of 62.0 million tons of iron ore, 5.5 million tons of metallurgical coal and 110,000 tons of copper.[7][8]
The company develops and operates power-generation assets and provides related infrastructure offerings including energy storage, transmission, power retail and wholesale, and gas and offshore infrastructure. Its net generation capacity was 9.5 GW at March 2025; the generation portfolio was 35% renewable, 55% gas, 8% coal and 2% oil, with 97% of capacity under long-term contracts.[12][13][14] Service offerings also include automobile, construction and mining machinery, and industrial machinery sales, financing, leasing, rental and after-sales service.[15]
The reviewed disclosures do not provide consolidated sales or revenue percentages by individual product or service. The power-generation percentages above describe the portfolio’s fuel mix and contracted capacity, not product sales shares.[12] [7][8][9][10][11][12][13][14][15]
Geographic presence
Mitsui & Co. operates in 62 countries and regions. As of April 1, 2026, its organization comprised 11 domestic offices and 109 overseas offices and trading subsidiaries; its worldwide directory covers Japan, North America, Central and South America, Europe/CIS, Africa, the Middle East, Asia and Oceania.[16][3]
Its geographic operations include iron ore and coal interests in Australia, investments in Brazil and Chile, and businesses in the United States, Saudi Arabia and Belgium. These are examples of its international footprint, not a complete list.[9][10][17][18] Mitsui reported 55,463 consolidated employees for FY2026, but the available information did not provide a regional employee breakdown.[19]
A regional revenue or sales breakdown was not available in the retrieved sources. Mitsui did report its power-generation portfolio by region at the end of March 2025: Asia/Australia 42%, Europe/Africa/Middle East 37%, and the Americas 21%; these figures describe portfolio capacity mix, not revenue.[12][20] [9][10][17][18][12][20][16][3][19][16][3][19]
Business segments
For FY March 2026, Mitsui reported seven operating segments: Mineral & Metal Resources, Iron & Steel Products, Energy, Machinery & Infrastructure, Chemicals, Lifestyle, and Innovation & Corporate Development [21]. The company’s segment dashboard reports gross profit rather than comparable segment revenue; the following approximate shares are each segment’s FY26 gross profit as a percentage of consolidated gross profit of ¥1,328.2 billion [22]. Mineral & Metal Resources contributed about 18.8%, covering development, investment, processing and marketing of mineral and metal resources; Iron & Steel Products contributed 4.0%, covering steel trading, processing, manufacturing and related services [23][24].
Energy contributed about 15.2%, spanning oil and gas, LNG, petroleum products, energy infrastructure and decarbonization-related activity [25][26]. Machinery & Infrastructure contributed 15.8%, encompassing machinery, mobility and infrastructure activities, including power, water and social infrastructure [14][27]. Chemicals contributed 18.9%, with businesses in basic and performance materials, and nutrition and agriculture [28][29][30].
Lifestyle contributed about 16.4%, with food production, processing, logistics and distribution, consumer businesses, healthcare and medical services [31][32][33]. Innovation & Corporate Development contributed 10.5%, including IT and communications, new-business development, finance, real estate, logistics and investment-related activities [34][35]. Effective April 1, 2026, Mitsui reorganized its structure: Mobility and Digital & Infrastructure were combined as Mobility, Digital & Infrastructure, and Lifestyle became Wellness Ecosystem; these are current organizational names, distinct from the FY26 reporting categories and percentages above [36]. [21][22][23][24][25][26][14][27][28][29][30][31][32][33][34][35][36]
Company history
Mitsui’s commercial origins date to 1876, when Takashi Masuda established the former Mitsui & Co. The company distinguishes that predecessor from the present corporation: the former company was dissolved in 1947, and the two are not legally continuous.[37]
The present company was established in 1947 as Daiichi Bussan Kaisha. In 1959, Daiichi Bussan integrated with other trading companies and adopted the name Mitsui & Co., Ltd.[38][6]
Subsequent milestones included the transfer of Kinoshita Sansho & Co.’s business to Mitsui in 1965, establishment of its U.S. subsidiary in 1966, and completion of its Ohtemachi head office in 1976. Mitsui expanded its overseas presence with Mitsui & Co. Europe PLC in 1988 and Mitsui & Co. (Asia Pacific) Pte. Ltd. in 2007; a new Otemachi head office was completed in 2020.[6] [37][38][6][37][38][6]
Sources
- www.mitsui.com[1]
- www.mitsui.com[2]
- www.mitsui.com[3]
- www.mitsui.com[4]
- www.mitsui.com[5]
- www.mitsui.com[6]
- MITSUI & CO LTD — Presentation (2025 Y)
- www.mitsui.com[13]
- www.mitsui.com[14]
- www.mitsui.com[15]
- www.mitsui.com[16]
- www.mitsui.com[19]
- MITSUI & CO LTD — Presentation (2026 Q 3)[21]
- www.mitsui.com[22]
- www.mitsui.com[23]
- www.mitsui.com[24]
- www.mitsui.com[25]
- www.mitsui.com[26]
- www.mitsui.com[27]
- www.mitsui.com[28]
- www.mitsui.com[29]
- www.mitsui.com[30]
- www.mitsui.com[31]
- www.mitsui.com[32]
- www.mitsui.com[33]
- www.mitsui.com[34]
- www.mitsui.com[35]
- www.mitsui.com[36]
- www.mitsui.com[37]
- www.mitsui.com[38]
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