Rio Tinto, one of the world's largest mining companies, reported its highest half-year underlying earnings in four years, with copper and aluminum overtaking iron ore as the biggest contributors to profit. The shift marks a significant change for the Anglo-Australian giant, which has long relied on iron ore for the bulk of its earnings.
The miner logged $6.85 billion in underlying earnings for the first half of the year, according to a Reuters report. Copper and aluminum together now account for about 56% of that profit, reflecting strong demand for metals used in electrification, construction, and manufacturing.
Why copper and aluminum are taking the lead
Copper is a key material for electrical wiring, electric vehicles, and renewable energy infrastructure. Aluminum is widely used in packaging, transportation, and building. Both have seen prices rise as global economies invest in decarbonization and infrastructure upgrades.
Iron ore, which has historically been Rio Tinto's cash cow, has faced headwinds from a slowing Chinese property market and weaker steel demand. While iron ore still contributes significant revenue, its share of profit has declined as copper and aluminum operations become more profitable.
The company's copper production has benefited from the ramp-up of the Oyu Tolgoi mine in Mongolia, one of the world's largest known copper deposits. Rio Tinto also has aluminum operations spanning bauxite mining, alumina refining, and smelting, which have gained from higher aluminum prices and cost controls.
What this means for investors
For everyday investors, Rio Tinto's earnings shift highlights a broader trend: mining companies are increasingly tied to the energy transition, not just traditional commodities like iron ore. Copper, in particular, is seen as a critical metal for electric vehicles, solar panels, and wind turbines.
Investors should note that Rio Tinto's earnings are still sensitive to commodity prices. If copper or aluminum prices fall, profits could decline. However, the diversification away from iron ore may reduce the company's exposure to China's property slowdown.
The strong half-year result also suggests that Rio Tinto's cost-cutting and operational improvements are paying off. Underlying earnings are a key measure that strips out one-off items, giving a clearer picture of ongoing business performance.
Broader market context
Rio Tinto's results come at a time when global mining stocks are under scrutiny. The S&P 500 has been shifting from chip stocks to safer bets ahead of Big Tech earnings and a Federal Reserve decision, reflecting investor caution. Mining stocks are often seen as cyclical, meaning they perform well when the economy is growing but can suffer during downturns.
In Australia, where Rio Tinto is listed on the ASX, the company's shares have been a key driver of the index. The ASX 200 recently surged back above 9,000, helped by gains in Rio Tinto and CSL. That shows how a single company's earnings can move a whole market.
Meanwhile, other miners are also reporting mixed results. Vault Minerals saw gold output dip but cash flow surge on strong gold prices, illustrating how different commodities are performing differently.
What to watch next
Investors will be watching Rio Tinto's full-year outlook, including any updates on production guidance for copper and aluminum. The company may also provide commentary on demand from China, the world's largest metals consumer, and on its plans for future growth.
Another key factor is the global economic outlook. If interest rates fall, that could boost construction and manufacturing, supporting demand for copper and aluminum. But if a recession hits, commodity prices could drop.
Rio Tinto's dividend policy is also important for income-focused investors. The company typically pays a substantial portion of its earnings as dividends, so higher profits could mean bigger payouts.
Overall, Rio Tinto's half-year results show that the mining giant is successfully pivoting toward metals that power the green economy. For investors, that shift offers both opportunity and risk, depending on how commodity prices and global demand evolve.
