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Rio Tinto expands trading arm to boost third-party metal deals

Rio Tinto expands trading arm to boost third-party metal deals
Stocks · 2026
Photo · Eleanor Whitfield for Daily Digest Invest
By Eleanor Whitfield Markets Editor-in-Chief Sep 24, 2026 5 min read

Rio Tinto, one of the world's largest mining companies, is planning to expand the trading activities of its marketing arm, according to a Bloomberg report. The company wants to do more third-party metal deals and make greater use of derivatives, with a particular focus on alumina and North American copper.

For everyday investors, this signals that Rio Tinto is looking beyond simply digging ore out of the ground. By trading more metal that it doesn't necessarily produce itself, the company hopes to capture additional profits from price movements and market inefficiencies.

What is a marketing unit?

Mining companies like Rio Tinto don't just extract raw materials; they also have teams that sell the metals and minerals they produce. These marketing or trading desks negotiate contracts, manage logistics, and sometimes hedge against price changes using financial instruments like futures and options.

Traditionally, Rio Tinto's marketing unit has focused on selling its own output. But the company now appears to want to expand into trading metal produced by other companies—known as third-party trading. This is a common strategy among large commodity traders like Glencore and Trafigura, who buy and sell physical commodities from various producers and consumers, profiting from the spread between buying and selling prices.

Derivatives, meanwhile, are financial contracts whose value is linked to an underlying asset, such as copper or alumina. They can be used to lock in prices, protect against adverse moves, or speculate on future price directions. Rio Tinto's increased use of derivatives suggests it wants to be more active in managing price risk and potentially profit from market volatility.

Focus on alumina and North American copper

The report highlights two areas of particular interest: alumina and North American copper. Alumina is the key raw material used to make aluminum, and Rio Tinto is already a major producer of both. By trading alumina more actively, the company could leverage its expertise and market position to generate additional revenue.

Copper is another story. Demand for the red metal is expected to grow as the world transitions to electric vehicles, renewable energy, and upgraded power grids. North American copper, in particular, has become strategically important as governments seek to secure supply chains closer to home. Rio Tinto's focus on this region could position it to benefit from rising demand and potential supply shortages.

It's worth noting that copper prices have been under pressure recently, as a firmer dollar and global economic uncertainty weigh on metals markets. However, long-term fundamentals remain supportive, and Rio Tinto's move to expand its trading footprint could be a way to profit from short-term price swings while waiting for the structural uptrend to play out.

What it means for investors

For shareholders, the expansion of Rio Tinto's marketing unit could have several implications. First, it may provide a new source of earnings that is less dependent on the volume of ore mined and more on the company's trading acumen. This could help smooth out earnings during periods when production is disrupted or commodity prices are volatile.

Second, trading activities can be risky. Derivatives, in particular, can lead to large losses if positions go wrong. Investors will want to watch how Rio Tinto manages these risks and whether the trading desk generates consistent profits or becomes a source of volatility.

Third, the move could signal that Rio Tinto sees more value in trading than in simply increasing production. This might be a response to the challenges of finding and developing new mines, which are becoming more expensive and time-consuming. By trading more, the company can grow its revenue without needing to invest billions in new projects.

For those invested in Rio Tinto or considering it, the key is to monitor how the marketing unit performs in the coming quarters. If it succeeds, it could add a meaningful new profit stream. If it stumbles, it could become a drag on earnings.

Rio Tinto's shares, like those of other miners, are sensitive to global economic conditions and commodity prices. A stronger dollar and falling metals prices have recently weighed on the sector, as seen in moves like the copper market slipping on a firmer dollar. But the company's diversified portfolio and potential new trading revenue could provide some resilience.

Investors should also keep an eye on broader market trends, such as Australian shares where miners have been gaining, and the ongoing strength of the US dollar, which can affect commodity prices. The success of Rio Tinto's trading expansion will depend on its ability to navigate these headwinds.

In summary, Rio Tinto's plan to expand its marketing unit is a strategic shift that could bring both opportunities and risks. For the average investor, it's a reminder that mining companies are not just about digging holes—they are increasingly becoming sophisticated traders and risk managers. As always, it's wise to stay informed and consider how such moves fit into your own investment strategy.

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