The UNSENRIC CGTFO was created in 1975 under the leadership of Louis Blanc, by transforming the FO National Union in Allied Unions.

It was to adapt our structures to the creation of subsidiaries whose unions could no longer depend on a national union of CEA.

The Unsenric is affiliated to the french Federation of Chemical Industries FO, because historically unions what was once called "atomic energy" were affiliated to the Federation. Indeed, the nuclear activity is chemical transformation of elements.

The Unsenric so includes dozens of nuclear sector unions (CEA and subsidiaries, AREVA and subsidiaries, etc.)., allowing coordination of trade union action in this industry.

It is also to claim of a National Nuclear Collective Agreement that would allow all workers in this sector to benefit from the same rights, as is done in all industries.