| 1869 |
In 1870, Iwasaki, who started shipping business as Kyusyu Commercial Company, actively expanded into coal mine and mineral resource management, which developed into one of the core businesses promoted by Mitsubishi. |
| 1869 |
Iwasaki, who started the shipping business as Kyu-ju Commercial Company, actively expanded into coal and mine management, which developed as a core part of Mitsubishi's promoted businesses. |
| 1870 |
In 1871 (Meiji 4), Kyusyu Commercial Company (predecessor of Mitsubishi Shokai) leased coal mines in Kishu Shingu Domain and entered the mining industry. |
| 1870 |
Kyu-ju Commercial Co. (predecessor of Mitsubishi Shokai) leased coal mines in Kishu Shingu Domain and entered the mining business. |
| 1872 |
In 1873 (Meiji 6), Mitsubishi Shokai (predecessor of Mitsubishi Goshi Kaisha) acquired Yoshioka Mine and entered the metal mining business. |
| 1872 |
Mitsubishi Shokai (predecessor of Mitsubishi Goshi Kaisha) acquired Yoshioka Mine and entered the metal mining industry. |
| 1893 |
In 1893 (Meiji 26), Mitsubishi Goshi Kaisha was established. |
| 1893 |
Established Mitsubishi Goshi Kaisha. |
| 1896 |
In 1896 (Meiji 29), it received the transfer of Osaka Smelting Works from the Imperial Household Ministry and entered the metal refining business. |
| 1896 |
Received the lease of Osaka Refining Plant from the Imperial Household Ministry and entered the metal refining business. |
| 1917 |
In 1917 (Taisho 6), Seto Inland Sea's direct island operation started as Mitsubishi's central refining plant by Mitsubishi Goshi Kaisha, producing various metals including copper supporting Japan’s modernization for over 90 years. |
| 1917 |
In 1917 (Taisho 6), the Mining Research Institute (now Central Research Institute) was established, along with the Setouchi Smelting Plant. |
| 1917 |
In 1917, began operations at the Seto Inland Sea island of Naoshima as Mitsubishi's central smelter by Mitsubishi Goshi Kaisha, producing various metals including copper that supported Japan’s modernization for over 90 years. |
| 1917 |
Established Mining Research Institute (now Central Research Institute) and the Naoshima Refining Plant. |
| 1918 |
Founded Mitsubishi Mining Co., Ltd. in 1918 (Taisho 7). Inherited the coal mining division, mine division, and research institute from Mitsubishi Joint Stock Company. |
| 1918 |
Established Mitsubishi Mining Co., Ltd., inheriting the coal, mining, and research divisions from Mitsubishi Goshi Kaisha. |
| 1920 |
The Toyo Cement Kanda Plant, which started operation in 1920 (Taisho 9). Post-war, it developed into Japan's top cement factory through partnership and mergers with Mitsubishi Cement Co., Ltd. (a subsidiary of Mitsubishi Mining Co., Ltd.), renamed Kyushu Factory in 1994. |
| 1920 |
Established Karita Factory (now Kyushu Factory, then Toyo National Cement Co., Ltd.) in 1920 (Taisho 9). Started cement production. |
| 1920 |
Established Karita Factory (now Kyushu Factory, formerly Toyokuni Cement Co., Ltd.) and began cement production. |
| 1921 |
Listed Mitsubishi Mining Co., Ltd. on the Tokyo Stock Exchange in 1921 (Taisho 10). |
| 1921 |
Mitsubishi Mining Co., Ltd. was listed on the Tokyo Stock Exchange. |
| 1930 |
A panoramic view of the Seto Island Refinery in the 1930s (Showa era). |
| 1934 |
Celebrating 80 years since acquiring the Kotobuki Mine in Kurihara District, Miyagi Prefecture, in 1934 (Showa 9). It grew into a top-class lead and zinc mine in Japan using advanced mining technology. Closed in 1987 due to tough post-war economic conditions. |
| 1934 |
In 1934, the company acquired the Senzu Mine of Kyokutou Kogyo Co., Ltd. in Kurihara District, Miyagi Prefecture, celebrating its 80th anniversary this year. It grew into one of Japan’s top lead and zinc mines through large-scale development using top-class mining technology. Post-war, it faced tough management conditions due to yen appreciation and closed in 1987. Since then, it has contributed to building a recycling-oriented society by recovering lead from used automotive batteries. |
| 1938 |
In 1938, Tohoku Fertilizer Co., Ltd. was established to supply chemical fertilizers to agriculture in Tohoku, and Japan Electronic Metals Co., Ltd. was established in 1959 with foresight of the semiconductor metal era. Both companies integrated to supply high-functionality fine materials related to semiconductors, contributing to a prosperous society amid rapid changes in industrial structure and business environment. |
| 1942 |
Established Tokyo Metal Industries (now Tsukuba Manufacturing) in 1942 (Showa 17) and fully entered the cutting tool business. |
| 1942 |
Established Tokyo Metal Industry (now Tsukuba Manufacturing) and fully entered the cutting tool business. |
| 1944 |
Started mass production of powder metallurgy products at Niigata Metal Industries (now Diamond Met) in 1944 (Showa 19). |
| 1944 |
Started mass production of powder metallurgy products at Niigata Metal Industry (now DiaMet), marking its 50th anniversary. |
| 1950 |
In 1950 (Showa 25), coal (Mitsubishi Mining Co., Ltd.) and metals (Taihei Mining Co., Ltd.) divisions were separated by concentration exclusion method. |
| 1950 |
Separated the coal (Mitsubishi Mining Co., Ltd.) and metals (Taihei Mining Co., Ltd.) divisions through concentrated exclusion method. |
| 1950-04 |
In April 1950 (Showa 25), Teitai Mining Co., Ltd. (later Mitsubishi Metal Mining Co., Ltd.) separated from Mitsubishi Mining Co., Ltd., and established Dai-tei Real Estate Co., Ltd. (later Mitsubishi Material Real Estate Co., Ltd. in 2004) to manage a major building (later Mitsubishi Metal Building). |
| 1950-06 |
In April 1950 (Showa 25), the Dai Tei Real Estate Co., Ltd. (later Mitsubishi Materials Real Estate Co., Ltd., renamed Mitsubishi Materials Real Estate Co., Ltd. in 2004), was established for the purpose of owning and managing buildings, after separating from Mitsubishi Mining Co., Ltd. (the predecessor of our company, which was renamed Mitsubishi Metal Mining Co., Ltd. in 1952) due to the Law for the Elimination of Excessive Concentration of Economic Power. It was originally set up to build a major building (later renamed Mitsubishi Metal Building). |
| 1952 |
Taihei Mining Co., Ltd. changed its trade name to Mitsubishi Metal Mining Co., Ltd. in 1952 (Showa 27). |
| 1952 |
Taihei Mining Co., Ltd. changed its trade name to Mitsubishi Metal Mining Co., Ltd. |
| 1953 |
In 1953 (Showa 28), Mitsubishi Metal Mining Co., Ltd. established the Akita Refinery in Ibaraki, Akita City, to meet post-war zinc demand, utilizing abundant electric power to produce high-quality electric zinc, leading to significant growth. |
| 1953 |
In 1953 (Showa 28), Mitsubishi Metal Mining Co., Ltd. (the predecessor of our company) established the Akita Refinery in Ibarashima, Akita City, to meet the postwar demand for zinc using the latest technology. It produced high-quality electrolytic zinc utilizing abundant electricity and grew significantly, but from the 1980s, faced rising power costs and sluggish metal prices, leading to the suspension of production in 1996 (Heisei 8). |
| 1954 |
Established Mitsubishi Cement Co., Ltd. in 1954 (Showa 29) and entered the cement business. |
| 1954 |
In 1954 (Showa 29), Mitsubishi Mining Co., Ltd. (the predecessor of our company) entered the cement business for diversification. Entering the Kanto market, the largest demand area in Japan, was a key strategy from the start. The infrastructure was developed over several years, and in 1969, a model cement plant was launched, incorporating the latest technology to achieve pollution-free and labor-saving operations. The company continues to challenge technological innovation at the forefront of the times, contributing to people, society, and the planet. |
| 1954 |
Established Mitsubishi Cement Co., Ltd. and entered the cement business. |
| 1954-06 |
The completion ceremony was held in June 1954. |
| 1958 |
In 1958 (Showa 33), Iwate Factory was launched by Tohoku Development Co., Ltd., a national policy company for regional development, to produce and supply cement using locally abundant limestone resources for infrastructure development. |
| 1959 |
Founded Japan Electronic Metals Co., Ltd. in 1959 (Showa 34) and advanced into the high-purity silicon semiconductor business. |
| 1959 |
Established Japan Electronic Metals Co., Ltd. and entered the high-purity silicon business for semiconductors. |
| 1962 |
In 1962 (Showa 37), Mitsubishi Aluminum Co., Ltd. started as an aluminum rolling manufacturer with technology imported from Reynolds, USA. |
| 1962 |
Established Mitsubishi Reynolds Aluminum Co., Ltd. (now Mitsubishi Aluminum Co., Ltd.) in 1962 (Showa 37). |
| 1962 |
In 1962 (Showa 37), Mitsubishi Aluminum Co., Ltd. started as an aluminum rolling manufacturer through technology transfer from Reynolds of the United States. About half a century later, our predecessor Mitsubishi Mining Co., Ltd. began aluminum smelting in Taiwan, marking a comeback after 17 years since the postwar withdrawal, and has since supported industrial and economic development. |
| 1962 |
Established Mitsubishi Reynolds Aluminum Co., Ltd. (now Mitsubishi Aluminum Co., Ltd.). |
| 1963 |
In 1963 (Showa 38), Onahama Refinery was launched as a joint venture mainly by Mitsubishi Metal Mining Co., Ltd., Shiwha Mining Co., Ltd., Furukawa Electric Co., Ltd., Furukawa Mining Co., Ltd., and Mitsubishi Electric Co., Ltd., as a large coastal refining plant. |
| 1963 |
In 1963 (Showa 38), the Onahama Smelting Co., Ltd. was launched as a joint venture mainly by Mitsubishi Metal Mining Co., Ltd. (the predecessor of our company), Sowa Mining Co., Ltd., Furukawa Electric Co., Ltd., Furukawa Mining Co., Ltd., and six Mitsubishi-affiliated companies, as a 'Seaside Large-Scale Smelting Plant.' To prepare for import liberalization, a new smelter was built in Onahama, close to the largest domestic demand area, with advanced technology, enabling large-scale copper concentrate imports from overseas mines. Since then, it has supported Japan's industrial and economic growth through stable, high-quality copper supply. |
| 1963 |
In 1963 (Showa 38), the Takimoto Factory in Yamamoto began cement production (later the No. 1 and No. 2 Glory Halls). |
| 1963 |
In 1963 (Showa 38), Mitsubishi Metal Mining Co., Ltd. (the predecessor of our company) acquired the Senzakura Mine of Kyoritsu Mining Co., Ltd. in Kurihara-gun, Miyagi Prefecture, marking its 80th anniversary this year. Through large-scale development utilizing top-class mining technology, it grew into one of Japan's top lead and zinc mines. Postwar, due to yen appreciation and other tough economic conditions, the mine closed in 1987. Since then, the company has contributed to building a recycling-oriented society mainly by recovering lead from used automotive batteries. |
| 1967 |
In 1967 (Showa 42), the Yokkaichi Plant was established to produce high-purity multicrystalline silicon for electronics, becoming Japan’s only dedicated high-purity silicon manufacturer, celebrating its 50th anniversary in 2017. |
| 1967 |
In 1967 (Showa 42), the Yokkaichi Plant was established to produce high-purity multicrystalline silicon. It is Japan's only dedicated manufacturer of high-purity multicrystalline silicon, essential for the electronics industry, and started operations in 1967. In 2007, it became our Yokkaichi Plant, celebrating its 50th anniversary next year. As a key material manufacturer for the semiconductor industry, it boasts world-class quality and high production efficiency through relentless R&D. |
| 1970 |
A panoramic view of the factory in 1970. |
| 1971 |
Founded Mitsubishi Atomic Fuel Co., Ltd. in 1971 (Showa 46) for the purpose of nuclear fuel manufacturing. |
| 1971 |
Established Mitsubishi Atomic Fuel Co., Ltd. for the purpose of atomic fuel manufacturing. |
| 1972 |
In 1972 (Showa 47), to expand the superhard tool business, a new factory was constructed in Gifu Prefecture, Kanbe Town, with production starting in April of the following year to ensure stable supply and technical service for customers in the Chukyo and Kansai regions. |
| 1972 |
Set up Fuji Kozan Factory (now Universal Can Co., Ltd. Fuji Mountain Factory) in 1972 (Showa 47). Entered the beverage aluminum can business. |
| 1972 |
In 1972 (Showa 47), a new factory was constructed in Kobe Town, Aichi Prefecture, with operations starting in April of the following year. Toyota Motor Corporation (now Toyota Motor Corporation), aiming for global dominance, introduced the Toyota Production System (Kanban system), developing it as a core manufacturing tool supporting customer manufacturing. |
| 1972 |
Set up Fuji Koyama Factory (now Universal Can Co., Ltd. Fuji Mountain Factory). Entered the beverage aluminum can business. |
| 1973 |
In 1973 (Showa 48), Mitsubishi Mining Co., Ltd., Mitsubishi Cement Co., Ltd., and Toyo National Cement Co., Ltd. merged to establish Mitsubishi Mining & Cement Co., Ltd. Mitsubishi Metal Mining Co., Ltd. changed its trade name to Mitsubishi Metal Co., Ltd. |
| 1973 |
The office building and factory completed in 1973. |
| 1973 |
Three companies, Mitsubishi Mining Co., Ltd., Mitsubishi Cement Co., Ltd., and Toyokuni Cement Co., Ltd., merged to establish Mitsubishi Mining & Cement Co., Ltd. Mitsubishi Metal Mining Co., Ltd. changed its trade name to Mitsubishi Metal Co., Ltd. |
| 1976 |
Started manufacturing and selling ceramic electronic components in 1976 (Showa 51). |
| 1976 |
In 1976, the shaping process of ring balusters (the mother factory for electronic device parts and ceramics factory in Yokose, Saitama Prefecture) was established. |
| 1976 |
Started manufacturing and selling ceramic electronic components. |
| 1978 |
In 1978 (Showa 53), the Osarizawa Mine was closed due to declining copper prices and ore depletion. |
| 1978 |
The Oji Mine (Oji Town, Kazuno City, Akita Prefecture), where copper ore was reportedly discovered, flourished as a gold mine from the Heian to Edo periods, and prospered as one of Japan's leading copper mines under Mitsubishi Kogyo after the Meiji Restoration. It closed in 1978 (Showa 53) due to declining copper prices and ore depletion. Today, it is a tourist site called 'Historic Oji Mine,' with tunnels such as the Ishikirizawa Passage prepared for sightseeing. |
| 1980 |
Akita Smelter, which faced rising electricity costs and sluggish metal prices since the 1980s, was forced to cease production in 1996 (Heisei 8). |
| 1980 |
In the 1980s, during the era of lightweight and compact devices, the company actively expanded into electronic materials and precious metal processing fields, relocating production to Techno Park, Sanda City, Hyogo Prefecture, in 1989, marking a new start. |
| 1988 |
Established Mitsubishi Cement USA in 1988 (Showa 63) and expanded into overseas cement business. |
| 1988 |
Established Mitsubishi Cement Corporation in the United States. Entered overseas cement business. |
| 1989 |
In 1989, the Sakai Factory relocated to Sakai City, Osaka Prefecture, and started anew as a copper processing plant. |
| 1989 |
In 1989, the production base was moved to Techno Park, Sanda City, Hyogo Prefecture, marking a new start. |
| 1990 |
In 1990, the Osaka Refinery, attached to the Imperial Household Agency's Osaka Branch Office, was established to industrialize the production of gold, silver, and copper, becoming the first of its kind in Japan. |
| 1990-04 |
Merged Mitsubishi Metal Co., Ltd. and Mitsubishi Mining & Cement Co., Ltd. to form Mitsubishi Materials Co., Ltd. |
| 1990-12-01 |
In 1990 (Heisei 2), Mitsubishi Metal Co., Ltd. and Mitsubishi Cement Co., Ltd. merged to form Mitsubishi Materials Corporation. |
| 1991 |
Merged with Tohoku Development Co., Ltd. in 1991 (Heisei 3). |
| 1991 |
Merged with Tohoku Development Co., Ltd. |
| 1994 |
After entering the cement industry post-war, the Kyushu Factory changed its name in 1994 and grew into a top cement plant. |
| 1994 |
Following a partnership and merger with Mitsubishi Cement Co., Ltd. (a subsidiary of Mitsubishi Mining Co., Ltd.), the Kyushu Factory (renamed in 1994) developed into Japan's top cement plant, contributing to the growth of Japan's cement industry. |
| 1996 |
Established Kapar Smelting in Indonesia in 1996 (Heisei 8) and entered copper smelting business in Indonesia. |
| 1996 |
Established Kapar Smelting Co., Ltd. in Indonesia. Entered copper smelting business in Indonesia. |
| 1998 |
Founded Ube Mitsubishi Cement Co., Ltd. in 1998 (Heisei 10) in partnership with Ube Industries. |
| 1998 |
Established Ube Mitsubishi Cement Co., Ltd. jointly with Ube Industries, Ltd. |
| 1999 |
Entered home appliance recycling business in 1999 (Heisei 11). |
| 1999 |
Entered the home appliance recycling business. |
| 2000 |
In 2000: Acquired Kobe Steel Cobelco Tools Co., Ltd. (now Akashi Works). Strengthened the tooling business. |
| 2000 |
Acquired Kobe Steel Co., Ltd. (now Akashi Works). Strengthened the tool business. |
| 2001 |
In 2001: Started manufacturing aluminum bottle cans at Okayama Plant (now Universal Kan Co., Ltd. Okayama Plant). |
| 2001 |
Started manufacturing aluminum bottles at Okayama Factory (now Universal Can Co., Ltd. Okayama Factory). |
| 2002 |
In 2002: Established a silicon wafer business integration company with Sumitomo Metal Industries (now Nippon Steel Corporation) and Mitsubishi Sumitomo Silicon Co., Ltd. (now SUMCO Corporation). |
| 2002 |
Established Mitsubishi Sumitomo Silicon Co., Ltd., an integrated company of silicon wafer business with Sumitomo Metal Industries (now Nippon Steel Corporation). |
| 2004 |
Until it was transferred outside the group in 2018, Daiwa Real Estate Co., Ltd. (renamed Mitsubishi Materials Real Estate Co., Ltd. in 2004) was established as a building leasing management company. |
| 2004 |
In 2004: Established Kobe Steel Copper Pipe Business Integration Company with Kobe Steel, Ltd. |
| 2004 |
In April 1950 (Showa 25), the Dai-tei Real Estate Co., Ltd. (later Mitsubishi Materials Real Estate Co., Ltd., renamed Mitsubishi Materials Co., Ltd. in 2004), was established for the purpose of owning and managing buildings, after separating from Mitsubishi Mining Co., Ltd. (the predecessor of our company, which was spun off from Mitsubishi Mining Co., Ltd. due to the Law for the Elimination of Excessive Concentration of Economic Power). It was originally established in June 1950 to build a major building (later renamed Mitsubishi Metal Building). |
| 2004 |
Established Kobe Steel Copper Pipe Business Integration Company, Kobe Co., Ltd. |
| 2005 |
In 2005, it merged with the aluminum can division of Hokai Seikan Co., Ltd. and started anew as Universal Seikan Co., Ltd. |
| 2005 |
In 2005: Established Universal Kan Co., Ltd. through the integration of Hokkai Canning Co., Ltd. (now Hokkang Holdings Co., Ltd.) and the beverage aluminum can business. |
| 2005 |
In 2005, it merged with the Aluminum Can Division of Hokkai Seikan Co., Ltd. and started anew as Universal Can Manufacturing. It continues to steadily progress, fueled by wisdom gained through overcoming numerous hardships. |
| 2005 |
Established Universal Can Co., Ltd., an integrated company of beverage aluminum can business with Hokkan Holdings Co., Ltd. (now Hokkan Kan Co., Ltd.) |
| 2007 |
In 2007, Yokkaichi Factory, which manufactures high-purity multicrystalline silicon, celebrated its 50th anniversary. |
| 2007 |
In 2007: Absorbed Mitsubishi Materials Polycrystalline Silicon Co., Ltd. and established Yokkaichi Plant. Absorbed Mitsubishi Materials Kobe Tools Co., Ltd. and established Akashi Works. |
| 2007 |
In 2007, it became our Yokkaichi Factory, and next year marks the 50th anniversary of its founding. |
| 2007 |
Mitsubishi Materials Polysilicon Co., Ltd. was merged and the Yokkaichi Factory was established. Mitsubishi Materials Kobe Tools Co., Ltd. was merged and the Akashi Manufacturing Plant was established. |
| 2008 |
In 2008: Made Mitsubishi Shinko Co., Ltd. a consolidated subsidiary. |
| 2008 |
In 2008 (Heisei 20), it integrated management to realize the synergy effects of the Material Group, and is making vigorous progress based on the rich technology and human resources accumulated by the former companies. |
| 2008 |
Mitsubishi Copper Co., Ltd. was made a consolidated subsidiary. |
| 2009-06 |
In June 2009, Aomori Factory, the most advanced cement plant in Japan, began operation. |
| 2009-06 |
In June 2009, the Aomori Factory began operations, with the mission of promoting industry and infrastructure development in Tohoku, producing and shipping large quantities of high-quality cement. |
| 2009-10 |
In October 2009, Sakai Factory relocated to Techno Park in Sanda City, Hyogo Prefecture, and started anew. |
| 2009-10 |
In October 2009, the Mita Factory began operations. Like the Sakai Factory introduced in the third installment, it is located at the Osaka Refinery attached to the Imperial Household Ministry's Genno Bureau, established in 1891 (Meiji 24). The site was transferred to Mitsubishi Joint Stock Company (the predecessor of our company) in 1896, and for over a century, it has produced gold, silver, copper, and other metals supporting Japan's modernization. It moved to Sakai City, Osaka Prefecture, in 1990, and started anew as a copper processing plant. |
| 2010 |
In 2010: Made Mitsubishi Electric Wire Industries, Ltd. a consolidated subsidiary. |
| 2010 |
Mitsubishi Electric Wire & Cable Co., Ltd. was made a consolidated subsidiary. |
| 2011-12 |
In December 2011, Akashi Works celebrated its 100th anniversary of producing high-speed steel (HSS) drills, Japan's first. Its roots trace back to Kobe Steel, Ltd.'s drill factory. |
| 2011-12 |
In December 2011, Akashi Manufacturing Plant celebrated its 100th anniversary of producing Japan's first high-speed steel (HSS) drill. Its roots trace back to the Kobe Steel Drill Factory. In 1911 (Meiji 44), it boldly challenged the then-world-leading 'HSS Drill'. Through successive technological innovations, it has contributed to Japan's industrial development as a mother tool. Today, it continues to advance strongly toward a greater future, based on its rich technology and human resources backed by history. |
| 2012 |
In 2012: MCC Development fully acquired Robertson Redi Mix Co. |
| 2012 |
MCC Development Corporation fully acquired Robertson Redi Mix Co., Ltd. |
| 2012-10 |
In October 2012, Universal Seikan Co., Ltd. celebrated its 40th anniversary. |
| 2012-10 |
Universal Can Co., Ltd., celebrating its 40th anniversary in October 2012, originated from Mitsubishi Metal Mining Co., Ltd. (our predecessor) Fuji Koyama Factory. It challenged the rapidly growing aluminum beverage cans in the U.S. at the time. Through continuous technological innovation and diligent recycling activities, it has played a role in revolutionizing beverage containers in Japan. In 2005, it merged with the Aluminum Can Division of Hokkai Seikan Co., Ltd. and started anew as Universal Can Manufacturing. It continues to steadily progress, fueled by wisdom gained through overcoming numerous hardships. |
| 2013 |
In 2013, Nippon Shinkinzoku Co., Ltd. celebrated its 50th anniversary for manufacturing and selling tungsten powder and other raw materials for superhard tools. |
| 2013 |
In 2013, Japan New Metals Co., Ltd. celebrated its 50th anniversary of manufacturing and selling tungsten powder and other raw materials for superhard tools. Its roots date back to 1909 (Meiji 42), when Toshikatsu Awamura, founder of Awamura Mining Co., Ltd., discovered Japan's first 'Heavy Stone Ore' (tungsten ore). Amidst the volatile demand and prices for rare metals, Japan New Metals Co., Ltd. was launched in 1963 (Showa 38) through joint investment with Mitsubishi Metal Mining Co., Ltd. Its keen insight into rare metals and relentless technological research have made it a pioneer in high-tech materials for many years. |
| 2014 |
In 2014, Diamoet Co., Ltd. overcame drastic changes in product items during wartime and post-war periods, achieving regeneration and development through sintered parts, contributing to regional revitalization, and celebrating its 70th anniversary. |
| 2015 |
In 2015: Made Mitsubishi Hitachi Tool Co., Ltd. a consolidated subsidiary and changed the trade name to Mitsubishi Hitachi Tool Co., Ltd. (now MOLDINO Co., Ltd.). |
| 2015 |
Hitachi Tool Co., Ltd. was made a consolidated subsidiary and renamed Mitsubishi Hitachi Tool Co., Ltd. (currently Moldino Co., Ltd.). |
| 2017 |
In 2017: Acquired the Special Products division that manufactures and sells copper processed products from Lubata Corporation. |
| 2017 |
Acquired the Special Products division that manufactures and sells copper processed products from Lubata Corporation. |
| 2017-06 |
In June 2017, the Central Research Institute was established as a rare private research organization in Japan, marking its 100th anniversary. It was initiated by the keen insight of President Koyata Iwasaki of Mitsubishi Goshi Kaisha (Mitsubishi Zaibatsu's 4th generation head). |
| 2018 |
In 2018, Mitsubishi Materials Real Estate Co., Ltd. (formerly Daiwa Real Estate Co., Ltd.), transferred outside the group, was established as a building leasing management company, developing a solid real estate business. |
| 2019 |
In 2019: Transitioned to a company with Nomination Committee, etc. |
| 2019 |
Transitioned to a company with a nominating committee, etc. |
| 2020 |
In 2020: Merged Mitsubishi Shinko Co., Ltd., established Wakamatsu Works and Sanpo Works. Fully acquired Mitsubishi Hitachi Tool Co., Ltd., and changed the trade name to MOLDINO Co., Ltd. |
| 2020 |
Merged with Mitsubishi Copper Co., Ltd., establishing Wakamatsu Manufacturing Plant and Sanpo Manufacturing Plant. Fully acquired Mitsubishi Hitachi Tool Co., Ltd., and renamed it Moldino Co., Ltd. |
| 2021 |
In 2021: Made Mantverde Corporation an equity-method affiliate. |
| 2021 |
Made Mantverde Corporation an equity-method affiliate. |
| 2022 |
In 2022: Sold all shares of Universal Kan Co., Ltd. Acquired the aluminum rolling and extrusion business of Mitsubishi Aluminum Co., Ltd. through an absorption split, succeeded to Showa Aluminum Can Co., Ltd. (now Artemira Co., Ltd.). Succeeded to cement business and related businesses to UBE Mitsubishi Cement Co., Ltd. |
| 2022 |
Sold all shares of Universal Can Co., Ltd. and succeeded Mitsubishi Aluminum Co., Ltd.'s aluminum rolling and extrusion business to Showa Aluminum Can Co., Ltd. (now Artemira Co., Ltd.) through a spin-off. Also succeeded cement business and related operations to UBE Mitsubishi Cement Co., Ltd. through a spin-off. |
| 2023 |
In 2023: Merged with Material Finance Co., Ltd. Fully acquired Onahama Smelting Co., Ltd. Transferred the polycrystalline silicon business to High Purity Silicon Co., Ltd. and sold all shares. |
| 2023 |
Merged with Material Finance Co., Ltd., fully acquired Onahama Smelting Co., Ltd., and succeeded the polycrystalline silicon business to High Purity Silicon Co., Ltd. through a spin-off, transferring all shares of the latter. |
| 2024 |
In 2024: Made Appi Geothermal Co., Ltd. a consolidated subsidiary. Expanded and reorganized the functions of MM Neighbors, established Mitsubishi Materials Europe. Acquired all shares of H.C. Stark Holdings through Mitsubishi Materials Europe. |
| 2024 |
Made Appi Geothermal Co., Ltd. a consolidated subsidiary. Expanded and reorganized the functions of MM Neighbors Corporation and established Mitsubishi Materials Europe. Acquired all shares of H.C. Stark Holding through Mitsubishi Materials Europe. |
