Finding better ways to provide the materials the world needs
Our business
We operate in 35 countries where our 57,000 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
Rincon Project
A long-life, low-cost and low-carbon lithium source
Simandou Project
The world鈥檚 largest untapped high-grade iron ore deposit
Providing materials the world needs in a responsible way
Climate Change
We鈥檙e 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
Decarbonisation progress update
We have a clear plan on decarbonisation - find out more about our progress in 2024
We aim to deliver superior returns to our shareholders while safeguarding the environment and meeting our obligations to wider society
Investor seminars
Our Investor seminar will be held in London on 4 December, and our Decarbonisation update on 5 December
Get the latest news, stories and updates
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
The 'f' word of innovation
How unlocking innovation requires a change of mindset
Reducing titanium oxide's carbon footprint
Our BlueSmelting technology could drastically reduce carbon emissions during ore processing
Discover more about life at Rio Tinto
Graduates and students
If you want to drive real change, we have just the place to do it
Empowering families with flexibility
Supporting new parents of any gender with equal access to parental leave
Available jobs
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Naziah is a machine-learning engineer who’s been helping improve conservation at our Weipa bauxite mine in Australia. The palm cockatoo nests on the lands where we mine bauxite at Weipa. So when we clear land for mining, we survey carefully to make sure we’re not impacting their breeding habitat.
Naziah has been helping to train a computer model to鈥痙etect these rare birds in images, to help minimise our impact on their breeding habitats. In March 2023, the recognised Naziah’s work on the project with a runner up award in the technical innovation category.
Machine learning was an interest that I kind of fell into. So I was surprised it’s why I was recommended for a conservation project, especially so early in my IT career.
I was very appreciative, though, because the palm cockatoos project was such an amazing opportunity. Not only to contribute to such an important environmental project, but also to meet and work with such a passionate team of people.
The team at Weipa – led by Celina, a Threatened Species Researcher – had set up 10 cameras, each pointed at a nesting hollow and taking photos roughly every minute. So we took the huge bank of images they’d already manually reviewed and tagged, and used it to train a computer model called YOLOv5 to find the cockatoos. It’s an open-source, object detection model that kind of works like filters that use facial recognition on social media. Once it was trained, the model could identify which images were likely to have birds in them, and pointed out where the bird could be found in the picture, building trust with users. It automated the huge job of checking tens of thousands of pictures, which they’d previously been doing manually.
With my skills and background, I knew I couldn’t make a big difference going out personally into the field. But I’m good at making research tools more efficient, and that means the rest of the team could focus more energy on what they’re good at. And collectively, we can make a bigger impact.
We鈥檙e advancing palm cockatoo research with technology trials at Weipa
Going to Weipa and seeing the research in action was both a highlight and a reality check. I鈥檇 never visited a mine site before, so it was really helpful to see the conservation work in person. The sheer size of the site was hard to comprehend until I saw it myself. I鈥檇 also wondered why the cameras weren鈥檛 closer to the hollows, but after seeing them in person, I could see that they鈥檇 definitely placed them as close as they could. So working with the team on the ground really helped me understand their challenges and reasons for doing things a certain way.
Other teams are now adapting the work we did for new conservation projects, too. The Weipa team are exploring using the same process to tag and analyse audio data like bird calls to isolate certain species. And teams in other parts of the world have been looking at how they can use our model for their own sites 鈥 some have more than 60 species they鈥檙e tracking, so a model like this would make their research and conservation work much more efficient.
Being recognised as a finalist for the QRC Award was so humbling. And I was really touched that a project focused on preserving the environment, rather than on mining itself, could be regarded so highly in an innovation category.
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