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History
1930 – 1959
- November1930
- Founded (Oji Plant)
- December1939
- Incorporated (NIPPON TOKUSHU KOZAI KOGYO CO., LTD.)
- June1940
- Established Itabashi Plant
- October1945
- Renamed NIPPON KINZOKU SANGYO CO., LTD.
- November1953
- Started operation of the first Sendzimir cold rolling mill imported to Japan
- February1954
- Renamed NIPPON KINZOKU CO., LTD.
- July1959
- Established processed products department
1960 – 1979
- November1960
- Established technical research institute
- November1962
- Completed rationalization of stainless steel strip manufacturing equipment (introduced Sendzimir cold rolling mill No. 2, skin pass mill, vertical bright annealing furnace)
- May1965
- Established processed products division
- November1969
- Established a management center at Itabashi Plant to introduce computers
- May1973
- Built a new main building for technical research institute
- June1974
- Established Saitama Plant
- November1975
- Separated the processed products division and established NIPPON KINZOKU SHOJI CO., LTD.
1980 – 1994
- September1980
- Introduced Sendzimir cold rolling mill No. 6 (4 feet wide) to Itabashi Plant
- October1981
- Established electrical steel strips division
- October1982
- Established precision pipes division
- January1983
- Established Gifu Plant
- July1985
- Established press products division
- July1986
- Separated the electrical steel strips division, precision pipes division, and press products division, and transferred commercial rights to NIPPON KINZOKU SHOJI CO., LTD.
- November1990
- Established Fukushima Plant
- June1991
- Introduced high performance precision multi-stage rolling mill (KT mill) to Itabashi Plant
- September1992
- Introduced tension annealing furnace to Itabashi Plant
- September1993
- Introduced large flat bar manufacturing equipment to Gifu Plant
- June1994
- Introduced precision profile rolled product (Fine Profile) manufacturing equipment to Saitama Plant
1995 – present time
- December1995
- Founded NIPPON KINZOKU (THAILAND) CO., LTD.
- April2000
- Introduced bright annealing furnace for stainless steel foils (No. 1) to Itabashi Plant
- April2002
- Started production of magnesium alloy strips
- September
- Opened Hong Kong office
- October2003
- Established a processed products sales department and transferred commercial rights from NIPPON KINZOKU SHOJI CO., LTD.
- October2004
- Integrated Oji Plant into Itabashi Plant
- July2006
- NIPPON KINZOKU (THAILAND) CO., LTD. Established Rojana Plant
- October
- Introduced bright annealing furnace for stainless steel foils (No. 2) to Itabashi Plant
- December
- Opened Shanghai office
- September2007
- Introduced rolling mill for foils and thin products to Itabashi Plant
- April2010
- Introduced automatic inspection equipment for outer surface of precision pipes to Gifu Plant
- July2011
- Introduced shape correction line for stainless steel foils to Itabashi Plant
- April2012
- NIPPON KINZOKU (THAILAND) CO., LTD. opened a processed products manufacturing plant in Rojana Plant
- June
- Introduced precision profile rolled product (Fine Profile) manufacturing line for auto parts to Fukushima Plant
- April2013
- Established precision profile rolled product (Fine Profile) annealing furnace for auto parts (No. 1) to Fukushima Plant
- July
- Founded NIPPON KINZOKU (MALAYSIA) SDN.BHD.
- July2014
- Made the Shanghai office a local subsidiary (NIPPON KINZOKU (SHANGHAI) CO., LTD.)
- November
- Established precision profile rolled product (Fine Profile) rolling mill for auto parts to Fukushima Plant
- March2015
- Established precision profile rolled product (Fine Profile) annealing furnace for auto parts (No. 2) to Fukushima Plant
- April2018
- Established bright annealing furnace for foils (No. 3) to Itabashi Plant
- October
- Established Sendzimir cold rolling mill No. 9 to Itabashi Plant
- March2022
- Established Sendzimir cold rolling mill No. 10 to Itabashi Plant
