The IP is tightly held by a handful of European steelmakers who aren't interested in transferring it abroad as it would remove their CBAM advantage against Asian exporters and completely destroy them and Germany (ThyssenKrupp), Sweden (LKAB, HYBRIT), and Austria (Voestalpine) would lose their temporary competitive advantage.
And all the Asian countries I listed (excluding Australia - who is Asia's Chile) are planning on dramatically expanding domestic steel production over the next decade to help with their infrastructure buildouts, so are primarily using domestic non-alloy steel and cement.
The Asian steelmakers will eventually figure and scale it out, but that will take an additional decade because they also won't transfer IP to their competitors. By that point it will be the late 2030s and in some cases the 2040s.