Wheat futures have climbed as much as 6.9% after Russian President Vladimir Putin criticized a recent grain deal with Ukraine, heightening attention on the sales outlook from the Black Sea region.

The grain shipment corridor from Ukraine is not helping poorer countries, as the majority of supplies are going to Europe, Putin said during the Vladivostok Economic Forum. It may be worth discussing restrictions on the routes with Turkish President Recep Tayyip Erdogan, he added.

The export deal, forged in July, was brokered by Turkey and the United Nations. It’s valid for an initial 120 days, and markets remain sensitive to any signals from politicians on its future. Ukraine is one of the world’s top crop shippers, and the resumption of flows from its Black Sea ports has helped ease global grain costs — though much hinges on whether the pace holds.

Russia, as well as poor countries, were deceived, even though "we have done everything to reach these agreements, we adhere to them and ensure them,” Putin said.

Russia is struggling to export its own bumper wheat harvest. Shipments in July and August fell 22% versus a year earlier, despite a bigger crop. Food sales have been exempted from western sanctions, though some banks and shippers remain wary of doing business there.

"Putin has no interest in seeing Ukraine benefit from large grain sales at a time when sales from his own country are sluggish following a big crop,” said Arlan Suderman, chief commodities economist at U.S.-based StoneX.

A senior U.S. State Department official said Wednesday that the administration’s efforts to ensure global food security are beginning to see results and that Ukrainian output had nearly returned to prewar levels. The official, who briefed reporters on condition of anonymity, said Putin’s comments may be an effort to divide the world and rally poorer nations to press for the war to end on the Russia’s terms.

The Brave Commander, a cargo vessel chartered by the World Food Program, is loaded with wheat grain at a port near Odesa, Ukraine, on Aug. 14. | Daniel Berehulak / The New York Times
The Brave Commander, a cargo vessel chartered by the World Food Program, is loaded with wheat grain at a port near Odesa, Ukraine, on Aug. 14. | Daniel Berehulak / The New York Times

Ukrainian officials also pushed back against Putin’s claims. Foreign Minister Dmytro Kuleba said two-thirds of Ukrainian grain being sent as part of the initiative is going to consumers in Asia, Africa and the Middle East.

"Just now, another vessel with Ukrainian grain has reached the shores of Africa near Sudan,” Kuleba said. He said the recovery of Ukrainian food exports had reduced food prices and cut the risk of a food crisis.

More than 2 million tons of grain and other foodstuffs have been shipped from Ukrainian ports since early August, according to data posted by the U.N. That includes recent cargoes to Turkey, Spain, China, Italy and Somalia.

A spokesperson for the U.N. secretary-general said last month the corridor was helping to restrain world food prices, which had soared after the outbreak of the war. That would benefit all commercial buyers. The first wave of ships to depart had been stuck at port for months, and headed to destinations contracted before the invasion.

Mykhailo Podolyak, an adviser to Ukraine’s president, said Wednesday that Russia has no grounds to review the Ukraine grain-export deal and that the terms of the agreement were being observed.