| Year | Event |
| 1914 | Established as UBE SHINKAWA IRON WORKS as unlimited partnership |
| 1942 | Merged with UBE INDUSTRIES, LTD. and started as UBE MACHINERY WORKS which was the machinery division of UBE INDUSTRIES, LTD. |
| 1967 | Install 30t electric arc-furnace and expand into large size of steel casting product |
| 1975 | Install 60t electric arc-furnace and continuous casting facilities and started to manufacture steel billet for steel bar etc. Capacity of steel casting product increased accordingly |
| 1980 | Install No.2 continuous casting facilities and increased billet production capacity to 40,000 ton/month. Install 10t & 20t low frequency furnace to manufacture high-quality cast iron product |
| 1986 | Install 60t refinery furnace to manufacture high-quality billet |
| 1989 | Established UBE STEEL CO., LTD. |
| 2002 | Acquired ISO9001 Certificate |
| 2005 | Acquired ISO14001 Certificate |
| 2007 | Acquired OHSAS18001 Certificate |
| 2010 | Certified as “Environmental Friendly Factory� by authority of Yamaguchi prefecture in Japan |
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