UN Sanctions Threat Over Hormuz ‘Tolls’ Deepens Fertilizer and Grain Market Risks

The mounting sanctions threat over Iran’s restrictions and “toll” charges in the Strait of Hormuz is adding a new layer of policy and compliance risk to an already fragile fertilizer logistics environment. For agricultural commodity markets, the combination of physical disruption and regulatory uncertainty is tightening nitrogen supply chains, raising freight and insurance costs, and increasing upside risk for wheat and other crop prices.

At the United Nations, the United States and several Gulf allies have circulated a draft Security Council resolution threatening Iran with additional sanctions or other measures unless it halts attacks on vessels, stops imposing so‑called illegal tolls on ships transiting Hormuz, and cooperates in establishing a humanitarian corridor for vital cargoes including fertilizer. The proposal comes as a separate U.S.-led naval task force is advising commercial ships to reroute while it works to reopen the choke point, keeping flows of oil, LNG and bulk cargoes well below normal.

Since early March, Iran’s effective closure of the strait and the wider regional conflict have sharply reduced traffic through a waterway that normally handles a significant share of global energy and fertilizer trade. Gulf producers such as Iran, Qatar, Saudi Arabia, the UAE and Bahrain account for roughly one‑third of global urea exports and nearly a quarter of ammonia shipments, leaving crop nutrient markets highly exposed to any prolonged disruption.

🌍 Immediate Market Impact

Freight and insurance premia for voyages touching the Persian Gulf have surged as shipowners price in war risk and potential sanctions exposure, particularly after U.S. authorities warned that paying Iranian transit tolls could breach sanctions rules. The UN draft resolution intensifies that risk calculus: if adopted, it would harden compliance constraints for ship operators, banks and traders involved in moving fertilizers, sulfur and other bulk cargoes through or from the region.

Physically, fertilizer and related bulk shipments have already slowed markedly. Shipping data show sharp declines in dry bulk flows through Hormuz, including grains moving into Gulf markets and sulfur and other inputs moving out. With Gulf producers central to nitrogen supply, particularly urea and ammonia, importers in Asia, Europe and parts of Africa are facing tighter spot availability, longer lead times and higher replacement costs.

The World Bank’s latest commodity outlook highlights that the fertilizer price index has risen sharply on the back of these disruptions and regional production outages. It warns that, under prolonged shipping constraints, 2026 fertilizer prices could exceed the peaks seen in 2022. Wheat benchmarks have so far reacted moderately, but rising input and freight costs are already feeding into forward margins, especially in importing regions reliant on nitrogen‑intensive yield strategies.

📦 Supply Chain Disruptions

The immediate bottlenecks are concentrated around Gulf export terminals and the Hormuz transit route. Mine risks, naval operations and sanctions ambiguity have effectively forced many shipowners either to avoid the area or to demand significantly higher war‑risk premia, compressing available tonnage for bulk fertilizers and associated inputs.

For nitrogen markets, the impact is twofold. First, curtailed exports from Gulf producers are directly removing volumes from the seaborne market. Second, disrupted energy flows—particularly natural gas—are raising production costs for nitrogen plants elsewhere, limiting their ability to offset lost Gulf supply. This is already visible in tighter booking windows and higher offers for urea and UAN into key importing regions.

Bulk sulfur exports, a critical feedstock for phosphates, have also been constrained, adding cost pressure further down the fertilizer chain. Port congestion in alternative load and discharge ports, extended voyage times around the Cape of Good Hope, and limited availability of suitable bulk carriers are increasing both transit times and demurrage risk for traders.

📊 Commodities Potentially Affected

• Urea and UAN: Directly exposed to export curbs and shipping risks from Gulf producers that account for about one‑third of global urea trade, driving higher spot prices and wider regional differentials.
• Ammonia: Tightened by reduced Gulf exports and higher gas costs elsewhere; essential feedstock for nitrogen solutions and industrial uses, amplifying cost pass‑through to farmers.
• Phosphate fertilizers: Affected indirectly via constrained sulfur flows and higher freight costs, particularly for import‑dependent markets in South and East Asia.
• Wheat: Input cost inflation and elevated freight rates raise full‑cost of production and landed costs, especially for high‑yield systems reliant on nitrogen top‑dressings.
• Other cereals and oilseeds: Maize, barley and oilseed crops face similar fertilizer and logistics pressures, with potential rationing of nitrogen applications if farm budgets tighten.

🌎 Regional Trade Implications

Asia—particularly India and Southeast Asian importers—faces the sharpest near‑term squeeze, given their dependence on Gulf urea and ammonia. Price-sensitive buyers may be forced to chase volumes from North Africa, the Black Sea and Trinidad, bidding against European and Latin American demand and pushing up FOB values in those regions.

Europe, while somewhat cushioned by partial domestic nitrogen capacity, still relies on seaborne imports and is exposed to higher gas prices and freight costs cascading from the energy side of the Hormuz crisis. North and South America benefit from relatively diversified import options and, in some cases, stronger domestic production, but U.S. analysts have already flagged vulnerability to higher costs and potential tightness ahead of key application windows.

Producers outside the Gulf—including in North Africa, Russia, and parts of Asia and the Americas—stand to capture margin as traditional Gulf-origin flows are displaced. However, these gains may be capped by their own energy constraints, regulatory limits, or infrastructure bottlenecks, limiting how fast alternative supply can scale.

🧭 Market Outlook

In the short term, fertilizer and freight markets are likely to remain highly volatile as traders digest both the physical disruption and the evolving sanctions landscape. The UN resolution process introduces binary risk: adoption could harden compliance lines around Iranian toll payments and shipping interactions, while failure could prolong the current ad‑hoc, high‑risk environment.

For crop markets, the main channel is cost rather than outright availability—at least for now. Elevated nitrogen and logistics costs into the 2026/27 season may encourage input rationing, particularly on marginal land, raising medium‑term yield risk for wheat and other cereals. Traders will watch closely for any concrete progress in reopening safe corridors through Hormuz, changes in insurance pricing, and policy moves—such as temporary tariff suspensions or subsidy adjustments—that could soften the blow for farmers in key importing regions.

CMB Market Insight

The intersection of security policy, sanctions enforcement and maritime risk in the Strait of Hormuz has turned a regional conflict into a structural test for global fertilizer and grain supply chains. Even if physical flows gradually resume, the added layer of sanctions and compliance risk around Iranian tolls and shipping interactions is likely to keep trade routes, pricing and contract structures in flux.

For market participants, the strategic priority is active management of origin diversification, freight exposure and counterparty risk. Nitrogen buyers should anticipate elevated basis and carry into the 2026/27 season, while grain traders and food companies should factor higher and more volatile input and logistics costs into procurement and pricing strategies. Until a durable navigational and policy settlement is reached, Hormuz-linked policy risk will remain a central driver of fertilizer and wheat market dynamics.