Mining Giants Lose $264 Billion as Metal Prices Plummet

The world’s top 50 mining companies saw a dramatic $264 billion drop in value during September 2026, bringing their total market capitalization to $2.26 trillion. This decline followed a sharp 6.4% fall in gold futures to $4,158 per ounce and a 22.5% slump in lithium carbonate prices in Guangzhou to 122,800 yuan per ton after a change in China’s pricing method. The revised method doubled reported lithium stockpiles to 175,000 tons, contributing to the sector’s downturn.

Gold miners were particularly hard hit, losing $79 billion in value. Kinross fell 21.3% after cutting its 2026-27 guidance by around 8%, while Shandong Gold dropped 27.8% after reducing its 2026 output target to 1.16-1.22 million ounces. Meanwhile, BHP lost $26.4 billion in value following a fatality at its Escondida mine, the world’s largest copper operation, which led to a full suspension of activities. Supervisors at Escondida also voted for strike action, adding to operational pressures.

First Quantum experienced a 19.2% decline after Panama’s three-minister commission set stringent conditions for restarting the Cobre Panama operation. The conditions include mandating that mine revenues fully fund eventual closure, shielding the Panamanian state from closure costs, and terminating $27 billion in pending arbitration claims. The commission also prohibited any extension of the mine’s operating period or physical expansion beyond its current site footprint.

The volatility in the mining sector reflects broader uncertainties in capital allocation decisions for long-life gold projects, as well as challenges in financing lithium projects. The sharp de-rating of lithium companies like Albemarle, Ganfeng Lithium, and SQM highlights the shift in market sentiment after earlier exuberance in battery-metals coverage. The situation also underscores the risks associated with single-asset concentration, prompting companies like Southern Copper and Freeport-McMoRan to justify their jurisdictional and asset concentration strategies.