Chicago wheat prices have experienced a decline for the first time in four sessions, returning to a one-week low following a brief spike to a one-week high on Tuesday. This drop is attributed to optimistic expectations for an extension of the Black Sea export deal, which has supported Ukrainian grain exports despite the ongoing political tensions between Poland and Russia. In addition to wheat, soybean and corn prices also saw minor declines after previous increases. The potential extension of the export deal and robust demand for soybeans are influencing the grain futures market. Notably, European Union soft wheat exports have seen a significant increase compared to last year, reaching 13.35 million tonnes so far in the 2022/23 season.