Read More Metals and Mining Industry News Rio Tinto locks in Boyne Smelter to 2040 with A$9.5bn renewable energy and government deal Rio Tinto secures Boyne Smelter to 2040 with a A$9.5bn renewable energy deal backed by A$2bn in government co-investment. Read what it means for RIO investors. bySrinathMarch 25, 2026