ARGENTINE GRAIN/OILSEED EXPORT PRICES ADJUSTED The Argentine Grain Board adjusted minimum export prices of grain and oilseed products in dlrs per tonne FOB, previous in brackets, as follows: Maize 71 (72), grain sorghum 65 (66). Roasted groundnutseed, according to grain size, 510 (520), 400 (410), 375 (385), 355 (365). Soybean pellets for shipments through May 164 (162) and June onwards 161 (159).