HOMEMITSUI MINING & SMELTING CO.,LTDarrowCompany ProfilearrowHistory
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History

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1874 The Mitsui Clan acquires Jabaradaira pit at Kamioka mine and begins mining operations.
1892 Mitsui Mining Limited Partnership is established.
1911 Reorganized as Mitsui Mining Co., Ltd.
1913 The first zinc is produced from Horizontal Distillation Furnace No. 1 at Omuta Zinc Smelting Plant (Asamuta).
1914 Operations commence as Omuta Zinc Smelting Plant affiliated with the Kamioka Mine of Mitsui Mining Co., Ltd.
1928 Hikoshima Zinc Smelting Plant (currently Hikoshima Smelting Co., Ltd.) is acquired from Suzuki Shoten.
1943 Hibi Smelting Plant (currently Hibi Smelter) and Takehara Refinery Plant (currently Takehara Refinery) are acquired from Showa Mining Co., Ltd. and Hibi Smelter is created.
1944 Takehara Refinery Plant is separated from Hibi Smelter, and Takehara Refinery is created.
1950 Mitsui Mining Co., Ltd. spins off its metals division to establish Kamioka Mining and Smelting Co., Ltd. (The predecessor company of Mitsui Mining & Smelting Co., Ltd.).
Kamioka Mining and Smelting Co., Ltd. is listed on the First Section of the Tokyo Stock Exchange.
1951 Tokyo Laboratory (currently Materials Analysis & Exploration Center/R&D Center) is created.
1952 Kamioka Mining and Smelting Co., Ltd. is renamed Mitsui Mining & Smelting Co., Ltd.
1962 Ohji Metals Co., Ltd. and Showa Die-cast Co., Ltd. are merged into Mitsui Mining & Smelting Co., Ltd, and Rolled Copper & Zinc Division and Die-casting Division are created.
1964 Kushikino Mining is separated and Mitsui Kushikino Mining Co., Ltd. is established.
The purchase of all shares of Compania Minera Santa Luisa S.A. is completed.
1967 Hachinohe Smelting Co., Ltd. is established.
1968 Huanzala Mine (Peru) began its full-scale operations.
Hibi Kyodo Smelting Co., Ltd. is established.
1974 Mitsui Grinding Wheel Co., Ltd. is established.
1976 Oak-Mitsui Inc. is established in the USA.
1980 Mitsui Metal Foil Co., Ltd. and Sankin Rare Earth Co., Ltd. are merged into Mitsui Mining & Smelting Co., Ltd. Ageo Metal Foil Plant (currently Ageo Copper Foil Plant) and Miike Rare Metal Plant are created.
Taiwan Copper Foil Co., Ltd. is established in Taiwan.
1982 Mitsui Mining & Smelting Co., Ltd. becomes a profit center organization.
1983 Okuaizu Geothermal Co., Ltd. is established.
1986 Kamioka Mining and Hikoshima Refinery are separated and reestablished as Kamioka Mining & Smelting Co., Ltd. and Hikoshima Smelting Co., Ltd.
Miike Smelting Co., Ltd. is established.
1987 GECOM Corp. is established in the USA.
1989 Mitsui Copper Foil (Malaysia) Sdn. Bhd. is established in Malaysia, YOURSOFT Inc. is established. MCS, Inc. is established.
1990 Three companies, Tokyo Koukyu Rozai (TKR) Co., Ltd., Mitsui Kinzoku Perlite Co., Ltd., and Dicalite Orient Co., Ltd., are merged into Mitsui Mining & Smelting Co., Ltd. TKR Division (currently Ceramics Division) and Perlite Division are created.
A unified common name, Mitsui Kinzoku, is introduced and a new corporate symbol is adopted.
1995 Mitsui Siam Components Co., Ltd. is established in Thailand.
Mitsui-Huayang Automotive Components Co., Ltd. is established in China.
1998 Mitsui Copper Foil (Hong Kong) Co., Ltd. is established in Hong Kong.
1999 The Head Office is moved to Osaki, Shinagawa-ku, Tokyo.
Mitsui Components Europe Ltd. is established in England.
2000 Mitsui Electronic Materials Co., Ltd. is established in Taiwan.
Pan Pacific Copper Co., Ltd. is established as a joint investment with Nippon Mining & Metals Co., Ltd. (currently JX Nippon Mining & Metals Corporation)
2001 Mitsui Copper Foil (Guangdong) Co., Ltd. is established in China.
2002 Mitsui Components Guangdong Co., Ltd. is established in China.
MS Zinc Co., Ltd. is established as a joint investment with Sumitomo Metal Mining Co., Ltd.
Mitsui Micro Circuits Taiwan Co., Ltd. is established in Taiwan.
2003 Ohi Seisakusho Co., Ltd. becomes a wholly owned subsidiary of Mitsui Mining & Smelting Co., Ltd. through a share exchange.
2005 Mitsui Kinzoku Trading (Shanghai) Co., Ltd. is established in China.
Mitsui Kinzoku Components India Private Limited is established in India.
Mitsui Kinzoku Korea Co., Ltd. is established in Korea.
2006 Palka Mine (Peru) begins full-scale operations.
Shanghai Mitsui Xin Yun Precious and Rare Metal Recycle Co., Ltd. are established in China.
Mitsui Kinzoku Catalyst Zhuhai Co., Ltd. is established in China.
2007 Mitsui Kinzoku (Shanghai) Management Co., Ltd. is established in China.
2010 Sumitomo Metal Mining Co., Ltd. and Rolled Copper & Zinc Division are integrated and reestablished as Mitsui Sumitomo Metal Mining Brass & Copper Co., Ltd.
Automotive Parts & Components Division and Ohi Seisakusho Co., Ltd. are integrated to form MITSUI KINZOKU ACT CORPORATION.
2011 AUTOMOTIVE COMPONENTS TECHNOLOGY INDIA PVT. LTD. is established in India.
2012 PT. MITSUI KINZOKU CATALYSTS JAKARTA is established in Indonesia.
MITSUI KINZOKU ACT (SHANGHAI) MANAGEMENT CO., LTD. is established in China.
Mitsui Kinzoku Advanced Ceramics (Suzhou) Co., Ltd. is established in China.
MITSUI KINZOKU ACT MEXICANA, S.A. de C.V. is established in Mexico.
Instrumentation Systems Division and Mitsui Kinzoku Kyusyu Engineering Co., Ltd. are integrated to form Mitsui Kinzoku Instrumentations Technology Corporation.
Mitsui Kinzoku has sold Mitsui Zinc Powder LLC to Horsehead Corporation.
2013 Mitsui Kinzoku Catalysts (Thailand) Co., Ltd. is established in Thailand.
Mitsui Kinzoku Catalysts Vietnam Co., Ltd. is established in Vietnam.
MCS, Inc. is dissolved.
PT. MITSUI KINZOKU ACT INDONESIA is established in Indonesia.
Mitsui Micro Circuits Taiwan Co., Ltd. is dissolved.
Mitsui Copper Foil (Guangdong) Co., Ltd. is dissolved.
Mitsui Kinzoku Catalysts America, Inc. is established in the USA.
2014 Die-Casting Division is separated and Mitsui Kinzoku Die-Casting Technology Co., Ltd. is established.
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