| 1939 | Nippon Light Metal Co., Ltd. was incorporated jointly by Furukawa Electric Co., Ltd., and Tokyo Dento (currently TEPCO) to start the aluminum smelting. | |
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| 1940 | NLM commences aluminum smelting at Kambara Plant (currently Group Casting Center). |  |
| 1941 | NLM starts alumina production at Shimizu Plant. | |
| 1945 | Nippon Electrode Co., Ltd. is established. | |
| 1948 | Aluminum secondary alloy manufacturer Taishin Yoko Co., Ltd. (later renamed to Taishin Light Metal Co., Ltd.) is established. | |
| 1949 | NLM is listed on the Tokyo Stock Exchange. | |
| 1952 | NLM establishes capital and technology cooperation with Aluminium Limited (currently Rio Tinto Alcan Inc.) of Canada. | |
| 1959 | NLM participates in management of Osaka Aluminium Seisakusho Co., Ltd.. | |
| 1961 | Nippon Light Metal Research Laboratory, Ltd. (currently Nikkei Research and Development Center) is established. | |
| 1962 | Nikkei Building (former headquarters building) completed in Ginza, Tokyo. |  |
| 1963 | NLM establishes technical ties with Fruehauf International Limited of the U.S.. Nippon Fruehauf Co., Ltd. is established. | |
| 1974 | NLM merges with Nikkei Aluminium Co., Ltd., and inherits the sales business of Nikkei Aluminium Rolling Company Ltd. to form a total aluminum business system. | |
| 1978 | NLM merges with Nikkei Aluminium Rolling Company Ltd.. Nikkei Unyu Soko Co., Ltd. (currently Nikkei Logistics Co., Ltd.) is established. | |
| 1983 | Computer systems division is spun off and reestablished as Nikkei Information System Co., Ltd.. | |
| 1985 | Nikkaru Extrusion Co., Ltd. integrated into NLM (currently Nikkei Kambara Co., Ltd.). | |
| 1986 | Sales division of NLM construction material department integrated into Shin Nikkei Co., Ltd.. Nonfemet International Aluminium Co., Ltd. is established in Shenzhen, China. NLM commences operations at Kambara Capacitor Foil Plant. |
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| 1987 | NLM forms alliance with U.S. company Modin. Nikkei Heat Exchanger Co., Ltd. is established. | |
| 1989 | NLM merges with Nikkei Kako Co., Ltd.. | |
| 1991 | NLM merges with Taishin Light Metal Co., Ltd.. | |
| 1993 | NLM buys into Amalgamated Aluminium and Alloys in Malaysia (aluminum alloy business). | |
| 1995 | NLM merges with Nikkei Techno-Research Co., Ltd.. Nikkei Research and Development Center (NRDC) is established. | |
| 1996 | NLM headquarters moved to Higashi-shinagawa, Shinagawa-ku, Tokyo. NLM Group aluminum consumer products sales divisions integrated to establish Nikkei Products Co., Ltd.. NLM buys into Toyo Aluminium K.K.. NLM joints Alcan to establish Alcan Nikkei Asia Holdings Ltd. and Alcan Nikkei Asia Co., Ltd.. |
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| 1999 | NLM joints Daiki Aluminum Industry Co., Ltd., to establish Daiki Nikkei Thai Co., Ltd., for production and sales of aluminum alloys in Thailand. NLM merges with Toyo Aluminium K.K.. |
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| 2000 | Nikkei Shoji Co., Ltd. integrated into Nikkei Sangyo Co., Ltd.. NLM spins off landscape engineering department to establish Sumikei Nikkei Engineering Co., Ltd., in cooperation with Sumitomo Light Metal Industries, Ltd., and merges department with it. NLM makes Shin Nikkei Co., Ltd., as a 100% subsidiary. |
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| 2001 | NLM constitutes NLM Communication Mark. | |
| 2002 | NLM spins off Panel System Div. to Nikkei Panel System Co., Ltd.. NLM spins off Extrusion Div. and Sheet & Extrusion Fabricated Products Div. to Nikkeikin Aluminium Core Technology Co., Ltd.. NLM merges Toyal Div. into Toyo Aluminium K.K.. |
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| 2003 | NLM establishes Alcan Nikkei Siam Ltd. (currently Nikkei Siam Aluminium Ltd.) as a consolidated subsidiary. | |
| 2004 | NLM enters a partnership with Nonfemet International Aluminium Co., Ltd. to establish NI Nikkei Shenzhen Co., Ltd., a company fabricating and selling aluminum extrusions for automobile parts. | |
| 2005 | NLM makes Tokai Aluminum Foil Co., Ltd. a subsidiary. NLM buys into M.C. Aluminum (Kunshan) Co., Ltd., an aluminum secondary alloy manufacturing subsidiary of Mitsubishi Corporation in China. M.C. NIKKEI Aluminum (Kunshan) Co., Ltd. (currently Nikkei MC Aluminum (Kunshan) Co., Ltd.) is established. |
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| 2007 | Nikkei MC Aluminium Co., Ltd. becomes a subsidiary of the Company as a result of the integration of the Company's operations for aluminum alloys for casting and die casting with M.C. Aluminum Co., Ltd., a subsidiary of Mitsubishi Corp. Toyo Aluminium K.K. establishes Toyo Zhaoging Co.,Ltd. in Zhaoging. NLM makes Tokai Aluminum Foil Co., Ltd. as a 100% subsidiary and transfers all shares in Tokai Aluminum Foil to Toyo Aluminium K.K.. |
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| 2008 | Nikkei (Shanghai) Body Parts Co., Ltd. is established in Shanghai, China. | |
| 2010 | NLM Tranfers all shares of Shin
Nikkei to the JS Group Corporation. Nikkei (Shanghai) International Trading Co.,Ltd. is established in Shanghai, China. |
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| 2011 | NLM establishes an immediate stock holding company, Nikkeikin Kakoh Kaihatsu Holdings Co., Ltd., which controls the group's extrusion and extrusion process businesses. | |
