The tenders close on Wednesday, April 26, traders said.
If based on grain sourced from the Black Sea region, some 50,000 tonnes of corn was sought for shipment for June 20-July 10 and 50,000 tonnes for July 20-Aug. 10, they said.
If based on South American supplies, the corn would be shipped 20 days earlier and US would be supplied 15 days earlier, they said.
The feed wheat was sought in three 15,000 tonne consignments. If based on supplies sourced from the European Union or Black Sea region, shipment was sought for May 20-June 6, June 20-July 10 and July 20-Aug. 10.
Wheat shipment periods from more distant origins could be adjusted, they said.
The barley was sought in three 10,000 tonne consignments with the same shipment periods as the wheat.
World benchmark corn futures in Chicago fell on Friday, continuing recent weakness and hitting their lowest since late December, on expectations of improving weather for corn planting in the US Midwest in coming weeks.
Falling corn prices also sparked a series of large South Korean purchases last week.