| 1890 |
A copper mine map created in 1890 during the Meiji era. |
| 1890 |
Sahei Hirose, the manager of Besshi Copper Mine, succeeded in dramatically increasing production through management reforms such as introducing Western technology and modernizing. |
| 1919 |
Sumitomo Head Office was established in 1919, centered around Osaka North Port Co., Ltd. (later renamed Sumitomo Land and Construction Co., Ltd.) |
| 1919 |
The roots of Sumitomo Corporation, Osaka North Port Co., Ltd., were established. |
| 1919-12 |
Sumitomo Corporation's roots trace back to Osaka North Port Co., Ltd., established in December 1919. It engaged in land reclamation in the Osaka North Port area and development of adjacent regions, managing real estate. |
| 1944 |
In 1944, it merged with Sumitomo Building Co., Ltd., and was renamed Sumitomo Land and Construction Co., Ltd. |
| 1945-11 |
In November 1945, it was renamed Japan Construction Industry Co., Ltd., and aimed to expand into the trading sector, handling products from various companies within the Sumitomo Group and major manufacturers across industries. |
| 1945-11 |
Renamed to Japan Construction Industry Co., Ltd. and officially decided to expand into the trading division. |
| 1946-01 |
Established the head office sales department and began activities in the trading division with only 32 employees. |
| 1949 |
In 1949, it listed its shares on the securities exchanges in Tokyo, Osaka, and Nagoya. |
| 1950 |
In 1950, it dispatched its first resident to Bombay (now Mumbai). |
| 1950 |
In 1950, dispatched the first resident to Bombay (now Mumbai) |
| 1950 |
Dispatched the first resident to Bombay (now Mumbai). |
| 1952 |
In 1952, it established a US subsidiary in New York, paving the way for overseas expansion. |
| 1952 |
In 1952, it was renamed Sumitomo Corporation. |
| 1952 |
Established a US corporation in New York in 1952 |
| 1952 |
Renamed to Sumitomo Corporation in 1952 |
| 1952 |
Established a US corporation in New York and renamed it Sumitomo Corporation. |
| 1955 |
In 1955, it listed its shares on the Fukuoka Securities Exchange. |
| 1960 |
Expanded business fields, promoted large-scale projects, resource development, and new industry initiatives, and established a comprehensive trading company system. |
| 1970 |
In 1970, it completed the new Sumitomo Corporation Building in Takebashi, establishing a two-headquarters system with Osaka and Tokyo. The same year, it merged with Sogo Boeki Co., Ltd. |
| 1977 |
In 1977, it adopted the slogan 'Big Three & Best One,' aiming to be top in comprehensive evaluation based on management analysis and to hold a superior social reputation. |
| 1978 |
In 1978, it renamed its English corporate name from SUMITOMO SHOJI KAISHA, LTD. to SUMITOMO CORPORATION. |
| 1979 |
In 1979, it introduced a sales division system with four divisions: Steel, Machinery & Electronics, Non-ferrous & Fuel, and Living Resources, promoting decentralization. It also celebrated its 60th anniversary with the new slogan 'OPEN EYES ON ALL,' strengthening overseas activities and exploring new fields. |
| 2013 |
In 2013, it launched a global operational system to enhance profitability worldwide. |
| 2017 |
In 2017, it identified six material issues for sustainable growth and social problem-solving. |
| 2018 |
In 2018, it relocated its headquarters to Otemachi, Chiyoda-ku. |
| 2019 |
In 2019, it formulated the corporate message 'Enriching lives and the world' and celebrated its 100th anniversary. |
