| 1942 | | Establishment of the company Arsopi |
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| 1950 | | New installations and diversified production |
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| 1960 | | Late 60's - Internationalization |
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| 1970 | | Moving to the actual facilities |
| 1972 | | Beginning of the Foundry Division |
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| 1980 | | Late 80's - Establishment of the Professional Training Center |
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| 1990 | | Development and decentralization of some departments, culminating in independent industrial units |
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| 2007 | | Establishment of Arsopi España |
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| 2009 | | Always innovating |
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