Silver's Hidden Squeeze: A Market Braced Between Geopolitics and Scarcity

Silver prices fell on failed US-Iran talks, but a deeper supply shock looms from China's sulfuric acid export ban, threatening copper-linked silver output amid a persistent market deficit.

The immediate market reaction to failed US-Iran talks was clear: silver prices fell 2.4 percent on Tuesday, dropping below $75 to $74.07 per ounce. Yet this headline-driven retreat masks a deeper, more structural threat to supply that could redefine the market's trajectory long after the geopolitical dust settles.

Geopolitical Shockwaves and Monetary Policy

Peace negotiations in Islamabad collapsed over the weekend, with US Vice President JD Vance stating Iran had failed to provide a clear commitment to abandon its nuclear ambitions. In response, the US enacted a naval blockade of the Strait of Hormuz, effective April 13. The financial fallout was swift. Brent crude oil surged 7.4 percent to $102.31 a barrel, a 40 percent increase since the onset of the wider conflict. This energy price spike intensifies inflationary pressure, with the US Consumer Price Index already at 3.3 percent, its highest level since May 2024. Markets now price in just a 30 percent probability of a Federal Reserve interest rate cut in December. For a non-yielding asset like silver, this combination of a stronger dollar and delayed monetary easing creates significant headwinds. The metal has lost over 20 percent of its value since the conflict began.

A Structural Supply Shock in the Making

While the Hormuz blockade dominates news cycles, a separate crisis is brewing that directly threatens primary silver production. China has announced it will halt exports of sulfuric acid from May, with the ban expected to last until the end of 2026. The connection to silver is critical yet indirect. Sulfuric acid is a key reagent in copper mining, used to leach the metal from crushed ore. Disrupting this input hampers copper output, and since approximately 70 percent of the world's silver supply is mined as a by-product of copper, the ripple effects are profound.

Chile, a major copper producer, is particularly vulnerable, importing around one million tonnes of sulfuric acid from China annually. Prices for the chemical there have already jumped 44 percent in the past month. Compounding the issue, the Middle East supplies about a third of the world's sulfur, and the Hormuz blockade is already limiting deliveries. Major copper producers have openly expressed concerns about maintaining production levels in the second half of the year.

Persistent Deficit Meets Unyielding Demand

This potential supply shock hits a market already defined by chronic shortage. 2026 will mark the sixth consecutive year of deficit, where demand outstrips newly mined supply. Preliminary data from the Silver Institute indicates last year's shortfall was approximately 95 million ounces. The cumulative five-year deficit is nearing 800 million ounces—equivalent to a full year of global mine production. Physical inventories in key hubs like London, New York, and Shanghai are shrinking rapidly, with the COMEX coverage ratio at a thin 13.4 percent.

On the demand side, industrial users in solar, electric vehicles, and data centers have few viable substitutes for silver. China's imports underscore this robust demand; the country purchased nearly 470 tonnes in February alone, the highest volume for that month on record and its strongest buying in eight years. This inelastic industrial appetite means any further tightening of physical supply could trigger a powerful price response.

For now, silver remains caught in a crosscurrent. A firmer dollar and profit-taking after a recent rally are applying short-term pressure. The immediate focus turns to economic data, including the US Producer Price Index, for clues on the inflation and interest rate path. Yet beneath these daily fluctuations, the foundational pillars of the market are shifting. The dual pressures of geopolitical disruption in the Hormuz and a structural chokehold on mining inputs are setting the stage for a significantly tighter physical market, where a deep, multi-year deficit may soon collide with an unbreakable supply constraint.