- 1964
- Founded wholesale sales of steel and secondary products such as wires, nails, and boards in Daito city
- 1967
- Warehouse opened in Kadota-cho, Kadoma City
- 1969
- DAITO CO., LTD. established with capital of 4 million yen by relocating the office to the same place
- 1970
- Along with the start of production of color steel sheet at Yodogawa Steel Works Kure Plant, we focused on sales.
Prefabricated House Manufacturers Expansion sales began for general contractor subcontractors.
- 1972
- Kyoto sales office opened.
Construction of first warehouse.
Start sorting and selling zinc / cold rolled products
- 1973
- Construction of the second warehouse of the Kyoto office.
Commenced sales of local construction materials
- 1976
- Started selling galvanized steel sheets in addition to conventional 1st grade products as well as over rolled products.
- 1994
- Repeated capital increase with business expansion, capital increased to 9 million yen.
- 1995
- We will further focus on expanding sales channels for surface treated steel sheets and promote user development.
- 1996
- Capital participation of SADOSHIMA CORPORATION, get 20%.
- 1999
- We will make SADOSHIMA CORPORATION own ownership percentage 70% and become an affiliated company.
- 2003
- Closing the Kyoto office, withdrawing business completely in the area.
- 2004
- Establishment of trade department.
Started importing and exporting operations of steel sheets.
- 2004
- Moved headquarters office to Kuotaro-cho, Chuo-ku, Osaka, moved to Minami-Enashima-cho, Taisho-ku.
Responding to streamlining sales and operations and speeding up promotion.
At the same time, we strive to develop human resources and try to increase the number of four.
- 2006
- I’ll partner with you.
We will develop basic software for steel distribution and rationalize the work further.
- 2006
- Partner with ANGANG STEEL COMPANY LIMITED and start domestic sales of GI.
- 2009
- Began trilateral trade to China, Vietnam and ASEAN countries.
- 2010
- Acquisition of ISO 14000 (certification number ECO 2 JO 369 – 4)
- 2011
- The shareholding ratio of SADOSHIMA CORPORATION will be 85%.
- 2017
- The shareholding ratio of SADOSHIMA CORPORATION will be 90%.
- 2023
- Updated backborn core systems, and began its operation in earnest.
Opened tokyo branch
