TOPSHOT - An Orano employee walks down in a staircase of the new conversion site "Philippe Coste COMURHEX II Uranium" located on the Tricastin nuclear plant site, in Pierrelatte on September 10, 2018. - Orano (formerly Areva) inaugurated on September 10, 2018 at Tricastin (Drфme) its new uranium conversion plant Comurhex II, with a delay of six years and a bill of more than one billion euros, doubled compared to the first estimate. (Photo by JEFF PACHOUD / AFP)