New Delhi, March 2026 — While global headlines focus on the explosive rise in oil prices, a “hidden crisis” is brewing beneath the surface of the West Asia conflict. The escalating war and the resulting standstill in the Strait of Hormuz are threatening a global shortage of sulfur—an invisible but essential chemical that powers the world’s food production and high-tech manufacturing.
Experts warn that if the blockade continues, the impact will ripple far beyond gas stations, hitting everything from the price of bread to the availability of the latest smartphones.
The Oil-Sulfur Connection
Sulfur is not just a mineral; it is a critical byproduct of the petroleum industry. To meet environmental standards, refineries must strip sulfur from crude oil and natural gas during processing. Currently, the petroleum and gas industries account for over 93% of global sulfur production.
The Gulf region is the heart of this supply chain, responsible for a staggering 92% of the world’s sulfur production. As the Iran-US conflict halts tanker traffic, Gulf refineries are running out of storage space for crude oil and are being forced to shut down. When the refineries stop, the production of sulfur—and the sulfuric acid derived from it—simply vanishes.
A Looming Hunger Crisis
The most devastating impact of a sulfur shortage is on global agriculture. Between 60% to 75% of all sulfuric acid produced globally is used to manufacture phosphate fertilizers. These fertilizers are essential for maintaining crop yields worldwide.
Without a steady supply of sulfuric acid to process phosphate rock, fertilizer production could collapse, leading to a massive spike in food prices and threatening global food security.
Stalling the Tech and Green Revolution
Beyond the farm, the tech sector is at severe risk. Sulfuric acid is a non-negotiable requirement for two modern essentials:
- Semiconductors: It is used extensively in the cleaning and etching processes of chip manufacturing.
- EV Batteries: It is the key chemical used to “leach” or extract essential metals like copper and cobalt from ore, which are vital for electric vehicle batteries and power grids.
The Failed Safety Nets
While nations like Canada and Venezuela also possess “sour crude” rich in sulfur, they cannot bridge the gap left by the Gulf. Canada’s production is significant but geographically limited, while Venezuela’s refining infrastructure has been hollowed out by years of sanctions and neglect. There is currently no alternative source capable of replacing the massive volumes lost in the Middle East.
Bottom Line
The world is discovering that the Strait of Hormuz is not just an oil artery, but a chemical one. As one analyst noted, the crisis isn’t just about the fuel in our tanks, but about “what oil becomes”. Without sulfur, the modern world cannot feed its people or power its technology. If the blockade remains, the “invisible chemical” may soon become the world’s most visible problem.
