Rio Tinto

Rio Tinto's struggling Tomago Aluminium Company has lost a challenge to a $52 million valuation of the land occupied by its Hunter Valley smelter, despite arguing the sum was too high in light of electricity costs and the limited pool of notional buyers.

The federal and Queensland governments will hand over $2 million to Rio Tinto to support its Boyne aluminium smelter in return for the mining giant investing $7.5 billion in clean energy projects within the state.

BHP and Rio Tinto have told a court that the claims of thousands of women who allegedly experienced workplace sexual harassment and discrimination should not be brought as class actions.

Engineering company Monadelphous has been awarded a long-term maintenance services contract with Rio Tinto valued at $300 million over five years. 

Mining giant Rio Tinto has put the development of its steel-making decarbonisation technology BioIron on ice, opting instead to invest $35 million into Calix's zero emissions steel technology demonstration plant.

Mining giant Rio Tinto is considering ceasing operations at Australia's largest aluminium smelter amid rising energy costs.

Rio Tinto and Gina Rinehart-owned Hancock Prospecting will invest $2.47 billion to develop a Western Australian iron ore project as part of the Hope Downs joint venture.

Rio Tinto has signed a $430 million partnership agreement with Japan's Sumitomo Metal Mining Co. to fast track development of its copper-gold project in Western Australia's Great Sandy Desert.

Gilbert + Tobin has snagged an Allens partner with expertise on major transactions and projects for its energy, infrastructure and resources group.

Rio Tinto has put down $75 million for Zanthus Resources' interest in the Yarraloola Iron Ore project assets in Western Australia's Pilbara region as part of a joint venture with Mitsui & Co and Nippon Steel.