Linked from
The 12 pages that link to Direct reduced iron, each with the reason it gives.
SteelmakingRelated: It provides a low-impurity alternative or supplement to scrap.
Iron oreRelated: High-grade ore can feed direct-reduction processes that avoid blast furnaces.
Green hydrogenRelated: Hydrogen-based reduction is a route to lower-carbon iron for steelmaking.
Iron(II) oxideRelated: FeO is one oxide stage that must be reduced to make metallic iron.