It’s Romania’s biggest port, home to Europe’s fastest-loading grain terminal, and has processed nearly a million tons of grain from Ukraine — one of the world’s biggest exporters of wheat and corn — since the Feb. 24 invasion.

But port operators say that maintaining, let alone increasing, the volume they handle could soon be impossible without concerted European Union support and investment.

“If we want to keep helping Ukrainian farmers, we need help to increase our handling capacities,” said Dan Dolghin, director of cereal operations at the Black Sea port’s main Comvex operator.

“No single operator can invest in infrastructure that will become redundant once the war ends,” he added

This enabled the port over the past four months to ship close to a million tons of Ukrainian grain, most of it arriving by barge down the Danube River. But with 20 times that amount still blocked in Ukraine and the summer harvest season fast approaching in Romania itself and other countries that use Constanta for their exports, Dolghin said it’s likely the pace of Ukrainian grain shipping through his port will slow.

“As the summer harvest in Romania gathers momentum, all port operators will turn to Romanian cereals,” he warned.

On a recent visit to Kyiv with the leaders of France, Germany and Italy, Romanian president Klaus Iohannis said his country was seeking possible ways of overcoming the “weaponization of grain exports by Russia.”