Believe they are talking carbon free smelting, no coal/coke.
This will be as efficient as Chinese backyard smelters in the late 50s and be equally productive for Germany’s Green Great Leap Forward.
If they do focus on coke, that’s free of “emissions” anyhow; in England, the earliest steam locomotives were mandated to burn coke instead of coal so that they would “consume their own smoke” as one law put it.