Export Sales and Shipments for December 15-21, 2023. Wheat:  Net sales of 276,400 metric tons (MT) for 2023/2024 were down 14 percent from the previous week and 60 percent from the prior 4-week average. Export shipments of 342,000 MT were up 1 percent from the previous week and 17 percent from the prior 4-week average. The destinations were primarily to Japan (60,800 MT), Thailand (60,000 MT), South Korea (56,900 MT), Vietnam (41,700 MT), and Algeria (40,800 MT). Corn:  Net sales of 1,242,100 MT for 2023/2024 were up 23 percent from the previous week, but down 12 percent from the prior 4-week average. Export shipments of 1,279,500 MT--a marketing-year high-- were up 47 percent from the previous week and 55 percent from the prior...