March Corn futures settled slightly lower at 437.5 but managed a weekly gain of 6.5 cents, while January Soybean futures added 2.5 cents to close at 1,125. March Chicago Wheat futures dipped 1 cent to settle at 539.75. Weekly export data highlights China stepping in as a buyer, though the pace remains behind official targets. Additionally, U.S. prices have moved to a premium over South American crops, potentially creating a headwind as Argentina faces rain delays in late-season corn planting.