Thanks for posting that MrB. I hadn't realised the implications from that perspective (although I knew they were bad!).
Searching a bit further, I came across this explanation which puts it in laymen's terms I could grasp better.
"Blast furnaces make iron which feeds the steelmaking process and electric arc furnaces make the steel. Port Talbot will stop making iron.
Think of bread. The blast furnaces make the flour and the electric furnaces make the bread. If you start with bad flour you get bad bread.
The electric arc furnaces will use scrap flour, of unknown quality. The bread will be of poorer quality. The output has thereby been downgraded. Most of the scrap comes from China – but not the iron ore which makes the iron. Therefore, we continue the dependence on China. Politically bad".
This comes from the comments section of
https://unherd.com/thepost/european-...ping-net-zero/
Nut-Zero = Unilateral Economic Disarmament in favour of China, Russia and India - what could possibly go wrong?