Rio Tinto (RIO) news today: Rhodes Ridge greenlights $191m study, green iron momentum builds, and Rusal court ruling adds legal noise (17 Dec 2025)
Rio Tinto plc (NYSE: RIO) is in focus on 17 December 2025 as a cluster of iron-ore growth and decarbonisation headlines land alongside a renewed legal overhang tied to its alumina joint venture with Russia’s Rusal. In Australia, Rio-backed initiatives