For decades, mining companies like Rio Tinto and BHP were known mostly for their heavy machinery, iron ore shipments, and coal pits. Today, they are repositioning themselves as unlikely tech investors. The reason is simple: the electric vehicle boom has made battery innovation the most strategic frontier of the automotive world. Automakers in the US and Europe can’t build EVs without stable mineral supplies, and miners can’t secure their future without tapping into the technologies that will shape demand.
As a result, two of the world’s largest miners are investing billions into lithium, battery startups, recycling ventures, and electrified mining equipment. Far from being slow-moving commodity players, Rio Tinto and BHP are now active participants in shaping the EV supply chain.
Rio Tinto’s Lithium Bet
Rio Tinto is going all-in on lithium, the mineral that defines the EV battery age. The company has committed billions to new projects in Argentina and Chile, aiming to become one of the largest lithium producers outside China. At its Rincon project in Argentina, Rio plans to produce tens of thousands of tonnes of battery-grade lithium hydroxide annually—enough to power hundreds of thousands of EVs.
In Chile, Rio recently agreed to spend up to $900 million for nearly half of the Salar de Maricunga project, marking the country’s most significant lithium deal in decades. This move comes despite volatile lithium prices, reflecting Rio’s long-term view that demand for electric mobility will continue to soar.
Rio is not stopping at extraction. The company has invested in ElectraLith, a US startup developing electrodialysis-based lithium extraction. This cleaner, more efficient method aims to reduce water use and eliminate reliance on Chinese refiners. For automakers worried about ethical sourcing and geopolitical risks, Rio’s strategy of combining resource control with new tech is highly attractive.
BHP’s Innovation Playbook
BHP, another mining giant, is also reinventing itself. Through its venture arm, BHP Ventures, the company has taken stakes in technologies spanning AI-powered mineral exploration, water purification, battery recycling, and even carbon capture. The aim is clear: to integrate sustainability and innovation into its operations while keeping a hand on future battery markets.
One standout example is BHP’s work on electrification at mine sites. Partnering with CATL and BYD, two of the world’s largest battery producers, BHP is testing battery-powered haul trucks and charging systems. These trials in Western Australia, conducted jointly with Rio Tinto, are evaluating whether mining’s largest machines can run on electricity rather than diesel. If successful, they would drastically cut carbon emissions at mining operations.
BHP has also backed startups like SiTration, which specializes in recovering metals from used batteries. Recycling ventures like this are crucial for creating circular supply chains that reduce dependence on newly mined materials. For automakers in Europe and the US, this kind of work helps build resilience and reduce exposure to unstable commodity markets.
Why It Matters for Automakers?
At first glance, miners investing in battery tech might seem distant from carmakers. But the connections are closer than they appear. Automakers increasingly face pressure to secure ethically sourced, low-carbon supply chains. Partnerships with miners who invest in clean extraction and recycling help automakers demonstrate accountability and meet regulations like the EU’s Battery Passport requirements.
For US manufacturers, miners’ investments dovetail with incentives from the Inflation Reduction Act, which rewards domestic or allied sourcing. If Rio’s and BHP’s projects in the Americas succeed, they could give US automakers a more stable and compliant supply of lithium and nickel. That, in turn, could shield them from reliance on Chinese-dominated processing chains.
Risks on the Horizon
Still, these investments are not without risks. Lithium prices have swung wildly, falling more than 70 percent from recent peaks. Betting billions on long-term demand requires patience and deep pockets. Projects in Chile and Argentina depend on new extraction technologies like direct lithium extraction, which remain unproven at industrial scale. If delays or technical issues occur, timelines for delivering supply could stretch far beyond automakers’ needs.
BHP faces similar uncertainties. Electrifying mining fleets sounds promising, but the sheer size of haul trucks means batteries must deliver extraordinary energy density and charging solutions that work in remote deserts. Recycling startups also face challenges scaling cost-effectively, with many still in pilot phases.
Yet for miners with decades-long planning horizons, these risks are calculated. They can absorb short-term fluctuations in pursuit of long-term dominance in EV supply chains.
A New Industrial Partnership
The significance of Rio Tinto and BHP’s moves lies in the way they blur old boundaries. Mining companies are no longer just digging ore—they are actively shaping the technologies that determine how those ores are used. Automakers, in turn, are paying closer attention to mining strategies than ever before, as mineral sourcing becomes as strategic as vehicle design.
This creates an emerging partnership where miners and carmakers must collaborate rather than operate in silos. Battery startups act as the bridge, bringing innovation and agility, while miners provide scale and resources. Together, they form a new ecosystem designed to accelerate the EV revolution while making it more resilient and sustainable.
Final Thoughts: The Miners’ New Role
For over a century, Rio Tinto and BHP were industrial powerhouses tied to steel, construction, and fossil fuels. Today, they are positioning themselves as key players in clean transport. Their investments in lithium, electrified mining fleets, and recycling show they understand the EV future is about more than extraction—it’s about innovation.
For the US and Europe, this transformation matters. It means the electric cars of tomorrow could be built on supply chains that are not only stable but also smarter and cleaner. And it means that miners, once seen as old-world operators, may turn out to be the surprising tech investors who keep the EV revolution moving forward.
