Iran War Disrupts Global Commodity Markets Beyond Oil

The headlines have focused on oil surging past $100 a barrel. But beneath that top-line shock, the war in Iran is quietly unraveling commodity supply chains that touch virtually every sector of the global economy — from the fertilizer that feeds the world's crops to the helium that etches semiconductor wafers, from the aluminum in beverage cans to the sulfur that extracts nickel for electric vehicle batteries.

Two and a half weeks into Operation Epic Fury, the effective shutdown of the Strait of Hormuz has exposed a web of dependencies that few policymakers and even fewer consumers understood existed. The consequences are only beginning to cascade.

The Chokepoint That Controls Everything

The Strait of Hormuz is not merely an oil corridor. On any given day before the war, roughly 80 commercial vessels transited the narrow waterway carrying a staggering share of global commodity trade: 20% of the world's oil, one-third of all liquefied natural gas, 24% of the world's sulfur, approximately 25% of globally traded fertilizer, one-third of the world's helium, and 9% of global aluminum supply [1][2].

Since Iran's Islamic Revolutionary Guard Corps effectively closed the strait on February 28, that traffic has collapsed to a handful of ships per day — and those are primarily non-Western vessels granted selective passage by Tehran in exchange for yuan-denominated trade [3].

"This isn't just an energy crisis," said Michael Werz, a senior fellow at the Council on Foreign Relations. "Water and food aren't humanitarian concerns at the periphery of the conflict but are rapidly becoming the conflict's most consequential terrain" [4].

Source: FRED / U.S. Energy Information Administration

Data as of Mar 11, 2026CSV

Fertilizer: The Slow-Motion Food Crisis

The disruption that may ultimately affect the most people has nothing to do with fuel. Roughly one-third of globally traded fertilizer passes through the Strait of Hormuz, and the blockade has arrived at the worst possible moment: the start of the Northern Hemisphere spring planting season [5].

Urea, the world's most widely used solid fertilizer and a critical input for corn, wheat, and rice, has surged more than 30% since the war began. Prices at the New Orleans fertilizer hub have climbed from $475 per metric ton to $680 per metric ton [1]. Nearly a million metric tons of fertilizer cargo are physically stranded in the Gulf, and major producers have declared force majeure [6].

The Middle East accounts for nearly half of global urea exports [7]. Fertilizer represents up to 25% of agricultural commodity production costs, meaning these price spikes will flow directly into food prices over the coming months [4].

"Supply chain shocks are expected to drive already record-high input prices even higher," warned Zippy Duvall, president of the American Farm Bureau Federation, at a moment when farm margins are critically tight [1].

The countries most exposed are those that can least afford it. India, Bangladesh, Thailand, and Indonesia rely heavily on imported Gulf fertilizers [5]. Analysts at the University of Illinois warn that a prolonged war could shrink U.S. corn acreage as farmers face input costs that make planting unprofitable [8].

Sulfur: The Commodity Nobody Talks About

Perhaps the most overlooked vulnerability runs through a commodity that most people never think about: sulfur. Twenty-four percent of the world's supply transits the Strait of Hormuz, and its absence is creating chain-reaction shortages across multiple industries [1][2].

Sulfur is the essential feedstock for sulfuric acid, which is used to extract nickel, copper, and cobalt — the metals at the heart of the energy transition. Indonesia, which produces more than half of the world's nickel, imports roughly 75% of its sulfur from the Middle East and holds only one to two months of inventory [1].

"Traders are already struggling to source any," said Robert Friedland, CEO of mining giant Ivanhoe Mines. He warned that copper operations could face closure within three weeks if the disruption persists, and that "sulphuric acid prices will significantly increase" [1].

The ripple effects extend far beyond mining. Sulfur is used in everything from pharmaceutical manufacturing to household cleaning products. Eric Byer of the Alliance for Chemical Distribution noted that manufacturers are already issuing force majeure notices. "Sulfuric is a biggie," he said, warning that the disruption threatens supply chains for batteries, paints, plastics, and construction materials [1].

Aluminum: A Four-Year High and Climbing

Aluminum has emerged as one of the most directly impacted metals. Approximately 9% of global supply — as much as 5 million tonnes — comes from Middle Eastern smelters now facing potential disruption from both combat damage and energy shortages [7][9].

LME three-month aluminum prices hit $3,372 per ton in mid-March trading, setting a four-year high [9]. Benchmark Mineral Intelligence raised its 2026 price forecast to $3,100 per ton from $2,900, while Argus Media reported that some analysts see prices reaching an all-time high above $4,000 per ton if the conflict drags on [10].

The aluminum spike has particular significance for industries already under cost pressure: automotive manufacturers, construction firms, aerospace companies, and the beverage industry, which consumes roughly 20% of global aluminum for packaging.

Helium: A Two-Week Clock for Chipmakers

One of the war's most consequential — and least anticipated — disruptions involves helium. Qatar produces roughly one-third of the world's supply at its Ras Laffan Industrial City, where state-owned QatarEnergy extracts and liquefies up to 17 metric tons per day as a byproduct of LNG processing [11].

On March 2, following Iranian attacks on Qatari facilities, QatarEnergy halted production. That single decision removed 30% of global helium from the market overnight [11][12].

This matters enormously for semiconductor manufacturing. Qatar is home to one of only two plants that produce semiconductor-grade helium, which is ionized and used to etch silicon wafers — the fundamental process in chip fabrication. The Semiconductor Industry Association warned in 2023 that a helium supply disruption would "likely" produce "shocks to the global semiconductor manufacturing industry" [11].

SK Hynix, the South Korean memory chip giant, has been forced to urgently diversify its helium sourcing. South Korea is among the most exposed nations, having imported 64.7% of its helium from Qatar in 2025 [12]. Experts estimate a minimum two-to-three month shutdown of helium production, with four to six months before the supply chain returns to normal [11].

China, meanwhile, is accelerating domestic helium production, with TrendForce reporting that Chinese suppliers are pushing ASML-certified ultra-pure helium as an alternative — a development that could reshape the semiconductor supply chain's geography long after the war ends [13].

Source: GDELT Project

Data as of Mar 17, 2026CSV

LNG: Europe's Energy Vulnerability Exposed Again

Approximately 20% of global LNG transits the Strait of Hormuz, nearly all of it from Qatar. When QatarEnergy halted operations at its two main facilities, European natural gas futures spiked 30% in a matter of hours [14].

European benchmark Dutch TTF futures experienced extraordinary volatility, nearly doubling over 48 hours before retreating to below €48 per megawatt-hour [14]. Daily freight rates for LNG tankers jumped more than 40% [14].

India faces a dual shock: more than half of its LNG imports are Gulf-linked, and the simultaneous spike in oil contract prices creates compounding financial pressure on an economy that imports 85% of its crude [14].

Shipping and Insurance: The Hidden Tax

Beyond specific commodities, the war has imposed a massive cost on global commerce through shipping disruption and insurance repricing. The benchmark freight rate for Very Large Crude Carriers hit an all-time high of $423,736 per day — a 94% increase from the previous week [15].

Major marine insurers including Gard, Skuld, NorthStandard, the London P&I Club, and the American Club cancelled war risk coverage for Hormuz transit effective March 5 [15]. Premiums for vessels that do attempt passage have jumped to 0.5% to 1% of the vessel's value — meaning a single transit of a supertanker worth $100 million now carries $500,000 to $1 million in insurance costs alone [15].

CMA CGM, one of the world's largest container shipping lines, introduced a $3,000 per container emergency surcharge for Gulf-bound cargo [16]. Neutral commercial vessels are increasingly routing around the Cape of Good Hope, adding weeks and billions in costs to supply chains already strained by years of disruption [1].

Euronews reported that the Strait of Hormuz has become "the world's most expensive waterway" following a 300% surge in risk premiums [17].

The Chemical Cascade

The Middle East represents roughly 15% of global polyethylene production. With energy costs soaring and facilities damaged or offline, the chemical industry faces what CRU Group analysts describe as a "capacity utilization crisis" — with global utilization rates approaching 90% and nearing full capacity [7].

If the disruption extends beyond three weeks, analysts warn of "significant issues" for the production of oil-based plastics, paints, pharmaceuticals, and construction materials [1]. Petroleum coke shortages are already driving up prices for synthetic graphite, a critical material in lithium-ion batteries [1].

Gold and the Safe-Haven Scramble

In theory, geopolitical crises drive investors to gold. The Iran war has partly confirmed and partly confounded that expectation. Gold initially surged from $5,296 to $5,423 per troy ounce on February 28, but then sold off more than 6% to $5,085 by March 3 as a stronger dollar and rising Treasury yields competed for safe-haven flows [18].

By mid-March, gold was trading in a volatile $5,050–$5,200 range. J.P. Morgan forecasts prices reaching $6,300 per ounce by year-end, while Deutsche Bank targets $6,000 [18]. The traditional safe-haven role of U.S. Treasuries appears to be weakening — 10-year yields have risen since the war commenced — potentially leaving gold as the last standing refuge for risk-averse capital [18].

The Defense Demand Spike

The conflict is also expected to boost demand for critical minerals tied to defense supply chains: tungsten, rare earth elements, and antimony — all essential inputs for modern weaponry [7]. This adds another layer of demand pressure to already tight markets and raises the prospect of governments invoking strategic stockpile provisions.

What Comes Next

The full economic toll depends on duration. BMO analyst Randy Ollenberger called this "the biggest shock to the oil market in decades" [7], but the oil shock may prove to be the most manageable part of the crisis. Oil has substitutes and strategic reserves; semiconductor-grade helium does not. Oil supply can be redirected; a million metric tons of stranded fertilizer cannot conjure a new planting season.

The World Economic Forum has warned that the conflict's price tag extends far beyond energy, threatening to shave percentage points off global GDP through intersecting supply chain failures [19]. With Iran's new Supreme Leader Mojtaba Khamenei vowing the Strait of Hormuz will remain closed and no ceasefire talks in sight, the commodity cascade has no obvious end point.

For consumers, the effects will arrive in stages: energy prices first, then shipping and manufacturing costs, then food prices by summer — a slow-building inflationary wave in an economy that was only just beginning to recover from the last one.