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* CBOT May soft red winter wheat ended the day down 1-3/4 cents to $4.55-1/2 a bushel.
* K.C. May hard red winter wheat also fell 1-3/4 cents, to end at $4.43 a bushel. The May 2020, July 2020 and September 2020 contracts hit new lows on Monday.
* MGEX May spring wheat lost 6-1/4 cents at $5.52 a bushel.
* US wheat was offered cheapest in a tender by Iraq that closed on Monday, according to traders.
* It was not expected, however, to be the main origin chosen for a 625,000-tonne purchase announced by Saudi Arabia's state buyer, with traders saying northern European origins were more likely to claim the bulk of the order.