Grain trade steady as Iran conflict drives freight costs and market tension
Freight costs surge as the Iran conflict enters week two, raising concerns across global grain, fertilizer and fuel markets.
KANSAS CITY, Missouri - March 9, 2026. Global grain markets remain largely stable in the second week of the U.S. and Israel military campaign against Iran, but analysts warn rising freight rates and fertilizer risks could pressure the agricultural supply chain if the conflict continues.
According to Stephen Nicholson, global sector strategist for grains, oilseeds and farm inputs at Rabobank, the immediate impact on agriculture has been logistical rather than structural. While key maritime routes such as the Suez Canal and the Strait of Hormuz are not currently acting as major bottlenecks for grain shipments, shipping costs on both ends of the global supply chain are increasing - a trend that could eventually affect farmers, buyers and commodity markets worldwide.
Nicholson noted that the main economic consequence so far is the spike in freight rates rather than direct disruption of grain flows. Shipping routes through the Suez Canal remain critical for global agricultural trade. According to international affairs research from Chatham House, roughly 13% to 15% of global seaborne grains and oilseeds move through the canal. The waterway also handles about 20% of ocean-transported fertilizers and 15% to 17% of globally traded wheat and rice.
Higher shipping costs could ripple through the supply chain, ultimately affecting farm-level economics. As freight becomes more expensive, grain buyers face additional fuel surcharges, and farmers could see their basis weaken as exporters pass along higher transportation costs. "You're going to have to pay a higher price just to get grain where it needs to go," Nicholson said. "From a grain perspective, that's the biggest economic impact."
Evidence of logistical strain is already emerging in parts of the global food system. Indian exporters report that basmati rice shipments have been stranded at sea and in ports, with freight rates more than doubling since the conflict began. India is the world's largest exporter of basmati rice, and more than half of its shipments are destined for Middle Eastern markets including Saudi Arabia, Iran and the United Arab Emirates.
Industry representatives from the All India Rice Exporters' Association say alternative markets cannot easily absorb those volumes, highlighting how regional disruptions can quickly ripple through agricultural trade networks.
Beyond grain logistics, analysts are increasingly concerned about the fertilizer market. The Middle East plays a major role in fertilizer production and export, and disruptions could trigger force majeure declarations from suppliers, leaving buyers scrambling for product in an already tight market.
If that occurs, growers could face rising input costs, further squeezing farm margins already under pressure from volatile commodity prices and global inflation. "You're throwing the buyer back into a marketplace that's already on fire," Nicholson said, noting that tighter supply would likely push fertilizer prices even higher.
So far, most agricultural commodities have shown limited reaction to the conflict, though some energy-linked markets are beginning to move.
Soybean oil prices have climbed, reflecting their close relationship with crude oil markets. Wheat recently surged to a two-year high, driven in part by rising energy prices and geopolitical uncertainty. Corn prices, however, have remained relatively stable, trading within the same range seen since August 2024. Palm oil has also held steady compared with its mid-2022 levels. If tensions persist for several weeks, Nicholson said corn could become the first major crop to react, largely because of its connection to the ethanol market and crude oil prices.
The geopolitical situation has also revived policy debates in Washington. The U.S. ethanol industry is using the conflict to push for nationwide year-round approval of E15 fuel, a gasoline blend containing 15% ethanol. However, Nicholson cautioned that infrastructure limitations - including refining capacity and retail fuel systems - could slow any immediate expansion.
Additional ethanol demand could lift corn prices, but that may also translate into higher food costs. "You might see the benefit at the pump," Nicholson said, "but consumers could feel it later through food inflation."
Despite ongoing geopolitical tensions, Nicholson said the global grain trade has proven remarkably adaptable. Over the past six years the industry has navigated multiple disruptions, including the COVID-19 pandemic, trade tariffs, Russia's invasion of Ukraine and recurring Middle East conflicts. The system has remained functional largely because of improved logistics, better data flow and diversified production across exporting regions.
Major exporters such as the United States and Brazil benefit from direct access to major ports, enabling shipments to continue even when other regions face disruptions. Meanwhile, multinational grain companies maintain global trading networks that allow supplies to shift quickly when one region encounters problems. "Grain is like water," Nicholson said. "It will find a crack and move." Improved logistics systems and faster information sharing have helped the industry adapt to disruptions, reinforcing the resilience of the global food supply chain even in times of geopolitical instability.
