We’re on a mission to become the world’s most valued metals and mining business – for the people who invest in us, the people we work and partner with, and the communities around us
Our business
We operate in 35 countries where our 60,000+ employees are working to find better ways to provide the materials the world needs
Our purpose in action
Continuous improvement and innovation are part of our DNA
Innovation
The need for innovation is greater than ever
We supply the metals and minerals used to help the world grow and decarbonise
Iron Ore
The primary raw material used to make steel, which is strong, long-lasting and cost-efficient
Lithium
The lightest of all metals, it is a key element needed for low-carbon technologies
Copper
Tough but malleable, corrosion-resistant and recyclable, and an excellent conductor of heat and transmitter of electricity
Bringing to market materials critical to urbanisation and the transition to a low-carbon economy
Oyu Tolgoi
One of the most modern, safe and sustainable operations in the world
Simandou Project
The world’s largest untapped high-grade iron ore deposit
Western Australia
While iron ore is central to our operations in WA, we have a diverse presence across the state, from salt, lithium, our diamond legacy and our promising copper-gold project
Providing materials the world needs in a responsible way
Climate Change
We’re targeting net zero emissions by 2050
Nature solutions
Our nature-based solutions projects complement the work we're doing to reduce our Scope 1 and 2 emissions
Enabling ESG transparency
Our START™ initiative tracks traceability and responsible production of Rio Tinto materials.
We aim to deliver superior returns to our shareholders while safeguarding the environment and meeting our obligations to wider society
2025 annual results
Announced on Thursday 19 February 2026
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Things You Can't Live Without
Our podcast discussing what needs to happen to create a sustainable future for the everyday items we have come to rely on
Refuelling the mining industry
How can we power the world’s biggest machines with new fuel solutions?
Forging a low-carbon future
How we're working to decarbonise iron ore and steel
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We’re working at pace to become the world’s most valued metals and mining business – for the people who invest in us, the people we work and partner with, and the communities around us.
Over the past year, we’ve made progress against our strategy and responded to challenges across our global business.
When 4 cyclones hit our iron ore operations in Western Australia in early 2025, our first priority was to keep people safe. Pausing some operations and damage to equipment impacted our first-quarter production by 13 Mt, but our teams’ resilience and efforts to recover from the extreme weather helped us deliver record rates from April onwards and achieve stable full year Pilbara production year on year.
Extreme heat also poses a serious and growing risk to our people and operations. And it’s not just heat we need to think about. Climate change is expected to bring more extreme conditions, like more intense bushfires, extreme rainfall leading to more severe flooding, stronger cyclones and longer droughts. To continue to operate safely and productively in sustained, rising temperatures, we're prioritising the health and safety of our people through a range of initiatives that will help us manage climate risks, now and in the future.
In 2025, The Pitch – our global employee innovation program – focused on falling objects, a critical risk that was behind 25% of potential fatal incidents the previous year. We asked our people to focus on defining the challenges we face, and we’re now partnering with employees, our assets and external innovators to set out technology requirements, crowdsource solutions, and deploy proofs-of-concept at site.
The Safe Production System (SPS) is now deployed across all Rio Tinto managed sites, driving operational improvements across the Group. More than 10,000 frontline employees have completed SPS training programs, empowering them to solve problems, simplify processes, and accelerate decision-making to improve performance. These efforts have delivered operational stability and record results, including record bauxite production at Weipa, and Gudai-Darri setting 2 consecutive monthly iron ore output records in 2025.
Ramp-up of the Oyu Tolgoi underground mine in Mongolia made strong progress in 2025, with completion of the underground material-handling system and all major infrastructure, and delivering a record copper production increase of 61% year on year. This helped us deliver an 11% increase in total annual copper production year on year. At Oyu Tolgoi, we saw rising contribution from higher-grade underground material, supported by the conveyor to surface, and also benefited from higher-grade mine sequencing in the open pit.
We secured investments to sustain production from our world-class iron ore operations in Western Australia for decades to come. Following Traditional Owner support, the Brockman Syncline 1, Hope Downs 2 and West Angelas Sustaining projects received all necessary state and federal government approvals. Our strategy to continue investing in Australian iron ore supports jobs, local businesses, and the state and national economies, and we are committed to ensuring the Pilbara remains critical to global steel supply well into the future. And in June, we opened Western Range, our newest iron ore mine.
In March, we completed the acquisition of Arcadium Lithium plc, establishing Rio Tinto as a global leader in the supply of energy transition materials, with one of the world’s largest lithium resource bases. In December, at an investor site visit to Argentina, we outlined how we are delivering the in-flight projects on time and on budget towards 200 kt lithium carbonate equivalent capacity by 2028. Beyond these committed projects, we will take a disciplined approach with future developments focusing on lowering capital intensity.
In December, the first shipment of iron ore from our Simandou operation in West Africa left Guinea bound for international markets. Simandou is the largest integrated mining and related infrastructure project in Africa. It unlocks an exceptional new source of high-grade iron ore that is in demand for low-carbon steel, and complements our world-class portfolio of iron ore mines in the Pilbara and Canada. The project is delivering more than 600 kilometres of new multi-use trans-Guinean rail, together with barge and transhipment vessel port facilities. This milestone was also a time to reflect, and remember our colleagues Morlaye Camara, who passed away in 2024, and Mohamed Camara who lost his life in 2025, on the project. Safety is the foundation of our business and our number one priority. We are committed to learning from these tragic events, so everyone goes home safe, every shift, every day.
In November, in the US, we produced first copper using our Nuton® Technology – a bioleaching technology that uses natural microorganisms to extract copper faster and more cleanly. Developed from a small lab in Australia, Nuton can process resources once considered too difficult or costly, achieving up to 85% recovery from primary sulphide ore. It eliminates the need for traditional smelting by producing high‑quality copper on site. At the Johnson Camp Mine in Arizona, Nuton has enabled direct mine‑to‑market production, marking its entry into commercial operations and the first new US copper production in over a decade.
We signed the final joint venture agreements with Sumitomo Metal Mining to deliver the Winu copper-gold project in Western Australia. Our partnership strengthens the Winu project, as we continue to prioritise the strong and enduring partnerships built with the land’s Traditional Owners, the Nyangumarta and the Martu.
We announced the single largest investment in our hydroelectric assets since the 1950s, with $1.2 billion for the modernisation of the Isle-Maligne power plant in Quebec, which was commissioned in 1926. The project, which will run until 2032, is essential to secure the future of low-carbon aluminium production in Saguenay–Lac-St-Jean, ensuring a more efficient, safe and reliable supply of renewable energy to our facilities.
We progressed projects at our Amrun bauxite mine – important steps in securing the long-term future of our operations in Cape York, Queensland, Australia. We began early works and final studies for the Kangwinan project, which will involve building a new mine and expanding the existing port to almost double bauxite production. And we approved $180 million investment on a project that will enable mining of the Norman Creek region, where around half of the declared Amrun Ore Reserves are held.
We continued the process of procuring renewable energy and storage projects to supply power to Boyne Smelters Ltd (BSL), our aluminium smelter in Queensland, Australia, beyond 2029. In February, we signed hybrid services agreements with Edify Energy for the Smoky Creek & Guthrie’s Gap Solar Power Stations. Together with wind and solar power purchase agreements announced in 2024, the annual energy generated could meet approximately 80% of Boyne smelter’s annual electricity demand, once operational. Currently, all contracted projects remain in project development phases, and we continue to monitor them as they progress towards final investment decisions and financial close.
In 2025, the Puutu Kunti Kurrama and Pinikura (PKKP) Aboriginal Corporation signed a Co-Management Agreement with us, to support a lasting and trusted partnership. The agreement forms the overarching framework for our iron ore operations on PKKP Country, and puts knowledge-sharing and joint design at the centre. It is designed to provide certainty to the PKKP for the protection and management of their heritage, and gives us certainty for our operations and development.
We carried out a successful trial of biofuel across our Western Australian iron ore ports, railways and mines. The trial provided us with a greater understanding of how renewable diesel could be integrated across our Pilbara operations, to help bridge the gap to widespread electrification.
Achieving zero exhaust emissions haulage needs involvement across the industry. At the end of the year, in collaboration with BHP and Caterpillar, we welcomed Australia's first Cat® 793 XE Early Learner battery-electric haul trucks to BHP's Jimblebar iron ore mine, marking the start of onsite testing.
We extracted the first primary gallium, a critical mineral used in technologies including radars, smartphones and electric cars, as part of a research and development project with our partner Indium Corporation. We aim to extract commercial quantities of gallium present in bauxite processed in our Vaudreuil alumina refinery in Canada.