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The Paris-listed firm, which farms just over 100,000 hectares in Ukraine, has observed a "significant" hit to yields in sunseed already harvested in the east, Vice Chairman Pierre Danon said in an interview, declining to give a precise figure, according to Reuters.

Read alsoUkraine sets record for sunflower oil productionAn exchange rate effect linked to a farmland sale in the east weighed on its first-half results, with AgroGeneration reporting a EUR 305,000 ($351,000) loss compared with a EUR 233,000 profit a year earlier.

But core earnings before interest, tax, depreciation and amortisation (EBITDA) rose to EUR 5.95 million from EUR 5.80 million ($1 = EUR 0.8540).