French nuclear group Orano on Monday inaugurated a 1.15 billion euro (1.02 billion pounds) uranium conversion plant despite huge global overcapacity for nuclear reactor fuel. State-owned Orano’s new plant in Tricastin, southern France, will account for a quarter of the world’s 60,000-tonne annual uranium hexafluoride (UF6) production capacity when it fully ramps up in 2021 …