Rio Tinto, Queensland and Commonwealth secure long-term future for Boyne aluminium smelter at Gladstone Share MELBOURNE, Australia--(BUSINESS WIRE)--Rio Tinto, the Queensland Government and the Commonwealth Government have struck a landmark partnership to secure a long-term future for the Boyne aluminium smelter at Gladstone and ensure it remains internationally cost-competitive beyond its current power contract. The agreement supports a long-term future for aluminium smelting in Queensland, building on pow ...