SummarySummary Companies Three EU states have banned Ukrainian grain, food importsRomania looks set to follow suitUkraine also trying to salvage Black Sea grain dealWARSAW, April 18 (Reuters) - Poland agreed on Tuesday to lift a ban on the transit of Ukrainian grain and food products, but Ukraine said a wartime deal allowing it to safely ship grain from Black Sea ports was still under threat. Failure to resume exports into eastern European countries or secure an extension of the Black Sea grain deal would trap large amounts of grain in Ukraine, hitting its exports and causing further economic problems for Kyiv as it battles Russian troops. Large quantities of Ukrainian grain have been trapped by bottlenecks in eastern and central Europe as low global prices and demand mean grain cannot easily be sold on. BLACK SEA GRAIN DEAL IN DOUBTUkraine, which relies on grain and food sales for a significant slice of its gross domestic product, also has concerns about the Black Sea Grain Initiative brokered between Moscow and Kyiv by Turkey and the United Nations last July. Russian Foreign Minister Sergei Lavrov will discuss the Ukraine Black Sea grain export deal with U.N. Secretary-General Antonio Guterres in New York next week, Russia's U.N. envoy said on Tuesday.

---