- Apr. 1938
- Osaka Oudou Co., Ltd. founded with starting capital of 100,000yen for production and sale of processed copper/brass products.
- Sep. 1943
- Company name changed to Osaka Light Alloy industry Co., Ltd.; commenced production of duralumin.
- Oct. 1945
- Company name changed to Shin Nippon Sangyo Co., Ltd.
- Jan. 1947
- Founded Osaka Oudou Co.,Ltd.as a subsidiary.
- Jan. 1949
- Company name changed to Nippon Shindo Co., Ltd.
- May. 1949
- Listed on Osaka Securities Exchange.
- Jun. 1951
- Became first copper/brass processing factory allowed to use JIS mark.
- Apr. 1959
- Founded Nisshin Jigane Co., Ltd. as a subsidiary.
- Oct. 1961
- Listed on Tokyo Stock Exchange.
- Jul. 1966
- Won Labor Minister’s Progress Award as excellent factory in safety management.
- Sep. 1968
- Won Director of Agency of industrial Science and Technology Award as excellent factory implementing industrial standardization.
- Mar. 1975
- Capital reached 880,000,000yen.
- Jul. 1976
- Launched wear resistant special high strength copper alloy bar HB series.
- Apr. 1981
- Launched dezincification resistant brass rod HC series.
- Mar. 1985
- Capital reached 1,305,000,000yen.
- Apr. 1989
- Commenced production of plating wires for connectors.
- Apr. 1990
- Commenced operation of horizontal continuous casting machine.
- Dec.1996
- Commenced mass production of reflow plating wires.
- Apr. 2000
- Launched dezincification resistant brass rod HC-50 and HC-60.
- Jun. 2001
- Received ISO 9001 certification.
- Jun. 2001
- Launched Lead-free brass rod HM-30.
- Jul. 2006
- Received ISO 14001 certification.
- Jan. 2008
- Capital reached 1,595,250,000yen.
- May. 2011
- Moved to new factory.
- Mar. 2014
- Business Alliance Agreement with SAN-ETSU Metal Co., Ltd.
- Mar. 2015
- To become a Consolidated Subsidiary of CK SAN-ETSU Co., Ltd.
- Jul. 2015
- Merger with Osaka Oudou Co., Ltd. and make it Osaka Oudou Company.
- Apr. 2018
- Launched dezincification resistant brass rod HC-80(reduce nickel’s use).
- May. 2019
- Launched lead-free low cadmium brass rod e-brass.
- Dec. 2019
- Launched Super Hero Bronze(HBS).
- Apr. 2022
- Shifting from the TSE Second Section Market to the TSE Standard Market.