The Copper Shortage Nobody Priced In
Electrification meets a decade of underinvestment. S&P Global projects a 10 million tonne shortfall by 2040. Here's the demand math.
The global transition to a low-carbon economy is fundamentally a transition to a copper-intensive economy. Yet, the market has consistently underestimated the structural supply deficit looming over the red metal. A comprehensive new study by S&P Global — "Copper in the Age of AI: The Challenges of Electrification" — projects that the accelerating pace of electrification will swell copper demand to 42 million metric tons by 2040, a 50% increase from current levels. Yet existing supply is poised to decrease in coming years, resulting in a supply deficit of 10 million metric tons by 2040, representing 25% below projected demand.
The Four Demand Vectors
Core Economic Demand: 23 Mt (53% of total) — construction, appliances, ICE vehicles, rail, aviation.
Energy Transition: 15.7 Mt — EVs, battery storage, renewables, grid expansion.
AI and Data Centers: approximately 2 Mt — 550 GW total installed capacity by 2040.
Defense Spending: approximately 2 Mt — global defense spending potentially doubling to $6 trillion by 2040.
A potential fifth vector — humanoid robots — could add a further 1.6 million metric tons of annual demand by 2040 if even one billion units are in operation. These vectors are not sequential; they are simultaneous and reinforcing.
The Supply-Side Constraint
Reversing the current supply trajectory will be no small task. The copper sector faces a host of challenges above and below ground: declining ore grades; rising costs for energy, labor, and other inputs; increasingly complex extraction conditions; environmental opposition; and lengthy judicial reviews. It takes 17 years, on average, for a new copper mine to go from discovery to production. Six countries are responsible for roughly two-thirds of mining production, and a single country — China — commands roughly 40% of total smelting capacity and 66% of imports of mined copper concentrate. Such concentration makes global supply and pricing vulnerable to disruptions, policy shocks, and complex trade barriers.
As Daniel Yergin, Vice Chairman of S&P Global, stated: "Economic demand, grid expansion, renewable generation, AI computation, digital industries, electric vehicles and defense are scaling all at once — and supply is not on track to keep pace. At stake is whether copper remains an enabler of progress or becomes a bottleneck to growth and innovation."
