| 1962 | Compagnie des Freins et Signaux Westinghouse (CFSW) moves its electrical energy converter and power semiconductor activities from Paris to Le Mans |
| 1967 | Jeumont Schneider’s semiconductor department merges with CFSW, which becomes Compagnie Des Semi-conducteurs Westinghouse (CDSW). |
| 1986 | Creation of POWEREX Inc., a joint venture in power semiconductors between Westinghouse Electric, General Electric and Mitsubishi Electric in Le Mans, CDSW becomes POWEREX Europe SA. |
| 1987 | POWEREX Europe S.A. acquires CGEE ALSTHOM’s semiconductor division |
| 1994 | POWEREX Europe S.A. is acquired by the SERES federation of companies and becomes POWEREX Europe M.A. This federation of companies specializing in electronics employs over 1,900 people, with sales of over €140 million. |
| 1998 | ISO 9002 certification. |
| 1999 | Assurance Qualité Ferroviaire AQF2 certification by SNCF. |
| 2001 | ISO 9001 : 2000 certification PEMA merges with BELCO |
| 2007 | ISO 9001 : 2008 certification |
| 2010 | EN 9100 : 2009 certification (aeronautical requirements). |
The Production Plant
