Because the Welsh government has a 3% stake in the company.
11 european countries,
£11,000,000,000 subsidizing coal & gas industry.
According to these figures https://group.renault.com/en/finance-2/financial-information/key-figures/ the French State has a 15% holding so it's not a controlling shareholder, the vast majority of the stock is publicly traded.
Anything relating to nuclear really ought to be government owned or at the very least, the government should have the right to step in if required on grounds of national security because it covers everything from the design of reactors used in power generation to the design and maintenance of reactors and warheads used in submarines.
Are you making the point that the state aid laws are written in such a way to favour the French and German states?