Established as Hokkai Denka Kogyo Co., Ltd. in Fushiki-cho (present: Takaoka City), Toyama Prefecture.
1918
Constructed Fushiki Factory, and started manufacturing carbide, lime nitrogen, and ammonium sulfate.
1938
Nihon Denko Co., Ltd. started manufacturing ferroalloy in Oguni Town, Yamagata Prefecture (Oguni Plant).
1943
Hokkai Denka Kogyo Co., Ltd. started manufacturing ferroalloy (Takaoka Plant).
1954
Started manufacturing siliceous lime and manganese fertilizers.
1962
Nihon Denko Co., Ltd. was renamed Toshiba Denko Co., Ltd.
1966
Started manufacturing the humic acid magnesia fertilizer Azumin at the Hanamaki Factory in Hanamaki City, Iwate Prefecture.
Constructed the Matsukawa Geothermal Power Plant (output: 20,000 kW) as Japan’s first geothermal power plant in Matsuo Village (present: Hachimantai City), Iwate Prefecture.
1969
The ferroalloy section of Tekkosha Co., Ltd. and the ferroalloy section of Toshiba Denko Co., Ltd. merged into Nihon Ferroalloy Co., Ltd.
1970
Azuma Kako Co., Ltd. and Nihon Ferroalloy Co., Ltd. merged into Japan Metals & Chemicals Co., Ltd.
Formed capital and technical alliances with Tohoku Jukagaku Kogyo Co., Ltd. (former Tohoku Shinko Kagaku Co., Ltd.).
1972
Constructed the Kyushu Factory for manufacturing ferrochrome in Kitakyushu City.
1973
Built a large-sized electric furnace with 51 MVA in the Shogawa Factory of the Takaoka Plant.
1975
Discontinued the production of ferroalloy at the Fushiki Factory of the Takaoka Plant.
Absorbed Tohoku Jukagaku Kogyo Co., Ltd. (former Tohoku Shinko Kagaku Co., Ltd.), transforming their factories into the Minami Iwate Plant (Waga Town, Iwate Prefecture) and the Date Factory (Date Town, Fukushima Prefecture).
1981
Constructed a factory for electrolytic manganese dioxide in the Takaoka Plant.
1982
Constructed the Mori Geothermal Power Plant (output: 50,000 kW) in Mori Town, Hokkaido in cooperation with Hokkaido Electric Power Co., Inc.
1984
Constructed the Tamagawa Hydroelectric Power Plant (output: 10,000 kW) in Oguni Town, Yamagata Prefecture.
1986
Opened New York Office.
1987
Discontinued the production of ferroalloy in the Sakata Factory.
1988
Constructed a factory for manganese ferrite in the Sakata Factory.
Built the Tsukuba Research Institute in Tsukuba City, Ibaraki Prefecture, and integrated the Central Research Institute (Omama Town, Gunma Prefecture) into the Tsukuba Research Institute in 1990.
1992
Constructed a factory for manufacturing hydrogen-absorbing alloy in Oguni Factory.
1993
Established JMC (USA) in North Carolina, the U.S. and started manufacturing high-purity chromium.
1994
SILBASA, a joint venture company established in Brazil, started manufacturing the special high-purity ferrosilicon of the Minami Iwate Plant.
1995
Built a diesel power plant in the Minami Iwate Plant.
1996
Established Hunan JMC Co., Ltd., a joint venture company for manufacturing electrolytic manganese dioxide in Hunan, China.
1997
Installed equipment for producing lithium manganese in the Takaoka Plant.
1998
Discontinued the production of ferromanganese in the Takaoka Plant, while Advalloy, a joint venture company established in South Africa, started a portion of the former production.
Discontinued the production of ferrochrome in the Kyushu Factory, while AFA, a joint venture company established in Zimbabwe in Africa started the production.
2001
Established China Office in Zhuhai, China.
2002
Filed for the commencement of corporate reorganization proceedings at Tokyo District Court (ended in 2006).
2003
Transferred the equipment for manufacturing lithium manganese to Nihon Denko Co., Ltd. (present: Nippon Denko Co., Ltd.)
Transferred the fertilizer business, including the Hanamaki Factory, to Denki Kagaku Kogyo Co., Ltd. (present: Denka Co., Ltd.)
Reduced the capital stock by 100% and injected new capital (changing capital stock from 6.8 billion yen to 77 million yen).
Transferred the Matsukawa and Kakkonda geothermal businesses and the hydroelectric power generation business in Tohoku to Tohoku Suiryoku Chinetsu Co., Ltd. (present: Tohoku Sustainable & Renewable Energy Co. Inc.).
2004
Transferred the geothermal business in Mori Town, Hokkaido to Hokkaido Electric Power Co., Inc.
2005
The Takaoka Plant started manufacturing metal carriers.
2007
Increase capital stock to 100 million yen.
2008
Transferred the environmental business of the Takaoka Plant to the subsidiary Nichiju Kankyo Co., Ltd.
2011
Acquired BOZEL BRASIL S.A., which is a ferroalloy maker in Brazil, and BOZEL EUROPE S.A.S in France as 100% subsidiaries.
2012
Started the recycling business for recovering rare earth from nickel-hydrogen batteries.
2013
Constructed the Date Solar Power Plant in Date City, Fukushima Prefecture.
2017
100th anniversary of inauguration of business
2019
Commemorated the 50th anniversary of establishment of JMC, and started the operation of the Matsuo-Hachimantai Geothermal Power Plant.
