The tender from Syria's General Foreign Trade Organisation closes on May 24, they said.
A previous tender for 50,000 tonnes of soymeal and 50,000 tonnes of corn had closed on May 12 and traders said they believed that no purchases were made.
Yellow corn was sought and offers must be submitted in euros.
Delivery of both the soymeal and corn was sought within four months of the supply contract being confirmed or following the opening of a letter of credit on the purchase.