Its just going to take a bit longer for Iron and steel production to transition, they likely wont bother until we see the full reduction in electrical price that comes with renewables. They do seem to have a process it just needs some refinement. The main grid transition is happening first and faster.

This is part of the issue with Seagate's assessment, its changing rapidly right now and in 5 years time Taiwan will be on mostly renewable energy and suddenly all of Seagate's iron usage will make them more expensive, then in 10 years time they are using electrically produced iron and its not an issue anymore.